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  1. Determine d if a plank is not uniform
  2. Finding an angle
  3. de Broglie wavelength, kinetic energy
  4. solving for t in a distance equation.
  5. Would the light bulb light up from the electromagnetic wave?
  6. angle of displacement
  7. Pendulum & Partition Function Problem
  8. Throwing ball in air and final velocity.
  9. How to calculate pressure of a mixture of oil Reservoir fuids?
  10. potential at the corner of a insulated charged cube
  11. Tension in a rope, wavelengths, etc. I need help!
  12. Conservation of momentum/mass when dropping an object on a spring.
  13. Colour
  14. Total phase difference diffraction help
  15. Power of a Fan and WindMill using Energy vs dynamic method)
  16. Physics Problem on Angular Momentum
  17. Moving wedge, conceptual problem
  18. Another simple harmonic motion problem
  19. Ideal Gas Law
  20. Electricity/magnetism problem
  21. Ideal Gas Law (volume)
  22. Ideal Gas Law (mass)
  23. Caluclating tension in string that is moving in horizontal circles.
  24. Finding wavelength and wave speed in a sinusoidal wave.
  25. Gauss' Law
  26. diverging lens problem? finding focal length
  27. Displacement with and without friction
  28. Rotational motion/conservation HW problem
  29. Centripetal Acceleration/Rotational Motion HW Problem
  30. Elastic collision HW problem
  31. given two charges where to put thrid charge for zero net force
  32. Torque/Rotational Dynamics HW Problem
  33. Quantum Physics help/Electron trap problem
  34. Conservation of Momentum Conceptual Questions
  35. Easy question!Quick!
  36. Hard Energy Physics Problem
  37. N-body simulation- objects accelerate *past* each other
  38. I believe I can Fly~I believe I can touch the sky
  39. Physics Heat Ice Water Mixture Question And Find Initial Mass Of Ice
  40. Show that the reflected and transmitted waves are related to the incident wave
  41. Augustine in septic tank (Alice in Wonderland)
  42. Heat and temperature change in liquid
  43. Heat and work. Fit ring over rod, remove ring from rod
  44. Stuck on Projectile Motion question
  45. Equivalent resistance of a cube of resistors
  46. conflict normal force in inclined plane
  47. Work done by a siphon.
  48. Circuit Analysis
  49. How much is the mass of the sun losing every second?
  50. Center of mass
  51. Find the total entropy of the system?
  52. Determin the magnitude of the net electric field of three point charges
  53. Constructive and Destructive Interference
  54. Calculating Moment of Inertia
  55. Forces of Friction
  56. Given linear density of two strings of total length 4m, find total length.
  57. Rope,potential energy
  58. Momentum and Collisions
  59. The Doppler Effect -- frequency of a bat reflected on wall
  60. An overall question about rotational dynamics
  61. long LC circuits
  62. Add forces as vectors help - Thanks!
  63. I solved this Conservation of Energy problem but I don't fully understand how
  64. Designing a simple magnetic field gen with a straight wire. Need current density
  65. Momentum
  66. finding vector of deflection
  67. Normal force in Ferris wheel
  68. Physics Vectors
  69. Basic trig equation set up
  70. Physics Contest Question
  71. Coefficient of Friction Lab
  72. Probability a system S will be in a quantum state i with energy ei. (Theory)
  73. Torque
  74. finding tension in a wire in our static equilibrium unit
  75. acceleration of flywheel?
  76. Doppler Effect: Ambulance
  77. Resolving Power/Angle etc.
  78. rate of heat transfer passing from the boiling water to the ice bath
  79. Period of a simple pendulum
  80. Estimating Doppler Shift for a Radio Wave
  81. 3D Schrodinger Equation of a Wire for Energy Levels - Quantum Physics
  82. buoyancy
  83. Location of minimum change in velocity for orbit escape
  84. Engineering Statics. Friction involving two bodies.
  85. Surface area using double integrals
  86. Biomechanics - Center of Gravity and Projectile Motion - PLEASE help
  87. Traverse Wave on a String
  88. Another Conversation of Energy Problem
  89. Weight causing a wheel to rotate
  90. Parallel RLC Circuit
  91. Orbit of Moon and the earth around thier COM
  92. Force, pressure and acceleration
  93. Using centripetal force, determine the acceleration of gravity
  94. Spring Constant of a Spring in a Shock Absorber?
  95. Moment of inertia tensor of three spheres
  96. Calculate the pressure of the following mixture.
  97. Calculate reservoir pore volume in field units and initial gas in place?
  98. rate will this student "burn" calories
  99. Use doppler shift to find star velocity
  100. Heat energy transferred in converting ice into steam
  101. Carnot Engine
  102. EM Waves basic problem
  103. Under Pressure! Finding the height of compressed air!
  104. Simple angular speed problem
  105. Max Amplitude for a 2 mass oscillation system
  106. Pressure problem
  107. Latent Heat equation
  108. Pressure problem. Need help.
  109. Finding diameter of a bubble when it reaches the surface.
  110. Difficult circular motion problem
  111. Michaelson Interferometer and changing length of glass rod
  112. Linear Momentum of Particle and Rod
  113. efficiency of a heat engine
  114. Newton Law of Cooling
  115. Application of Gauss' law -- some doubts
  116. Rotational Dynamics HW Prob
  117. Rotational kinematics/dynamics
  118. Change in Entropy
  119. Optics - Newton's Rings
  120. Multiple questions, please help, test friday
  121. Finding Vel. and Pressure of blood flow in vessel
  122. Change lengthofday
  123. Need Help!
  124. Tension in a single rope holding a block, no motion.
  125. Weight at the North Pole vs. Equator Problem
  126. Beat frequency for hanging bar between two wires with added offset weight
  127. Newton's laws
  128. Finding RMS value of strange column function
  129. Interference of waves (check my hmwk questions please)
  130. Number theory question
  131. Please help me
  132. finding moment of inertia of a flywheel using rotations, with friction.
  133. Simple Pendulum
  134. Deceleration of a car.
  135. Help me decide with a mid range physic project
  136. Thermodynamics Problem- please help!
  137. Calculating angular acceleration and angular velocity
  138. Compressed water confusion
  139. Energy Stored in a Charged Capacitor
  140. Calculating the diameter of a bubble when it reaches the surface
  141. Heat/Energy
  142. Gauge Pressure at the Bottom of Ocean on Mars
  143. Relativity question, photon and proton....
  144. rlc problem: calculations of components and phasor drawing
  145. Forces and Pressure in a Hydraulic System
  146. Ball Rolls off of a circle :O!! PROBLEM!
  147. Moments quesiton
  148. Rising water level
  149. Work question without distance, work and velocity
  150. Simple errors question
  151. How to find tangential velocity of a mass?
  152. Area of a parallelogram with co-ordinates
  153. Magnetic Force Direction Question
  154. Relative speed, relative angles
  155. Induced EMF Moving Current Loop
  156. Easy problem dealing with tension and mass of an object.
  157. Direction of Induced EMF (Faradays Law) Confusion
  158. Distance calculated from Energy
  159. Need to find the net force and the average force.....
  160. Easy Angular Physics
  161. [Lens] given: focal length and magnification, find image distance and image height
  162. Biomechanics - CoG and projectile motion
  163. Forces on a supported beam
  164. Resulting directions and velocities of two circles colliding
  165. Compute acceleration and tension in the cord
  166. Doppler shift of an approaching source with interference problem
  167. Speed of an ocean wave
  168. Entropy of a quantum sized material
  169. Thermodynamics problem! How to find the temperature of a gas. Please Help!
  170. Basic Kinematics of Spheres
  171. Period and amplitude of oscillations.
  172. Electromagnet question
  173. Simple Harmonic Motion (displacement function)
  174. cross product
  175. Determining direction of induced current
  176. Effective Resistance if bent in the form a circle
  177. Horizontal Spring Problem, just need it checked!
  178. Forces (Just need it checked)
  179. Nonuniform circular motion problem.
  180. Relative time space travel
  181. Buoyancy Force of a boat
  182. Specific Heat Capacity
  183. What creates polarisation field when -div(P) = 0?
  184. Varying pressures
  185. Find Displacement Amplitude for 79.8dB Wave
  186. Momentum and Impulse
  187. Change in energy for a balled up chain
  188. Change in entropy for adding quanta
  189. boat going up a river
  190. LCR circuit and frequency equation
  191. box being pushed up an inclined plane
  192. Fnding the rms speed of hydrogen
  193. Spring Oscillation Problem
  194. General question about linear momentum.
  195. Tension in Strings Holding Up Shelf
  196. Electric potential inside a spherical shell
  197. (19-74) Ideal gas problem
  198. Force between 2 parallel, charged, conducting sheets.
  199. (21-11) Thermodynamics problem help
  200. A perfect sphere
  201. Oscillator Problem Maximum speed & amplitude
  202. Need Help in making a slow descending yo yo for science club presentation
  203. Time and Velocity (Big Four?)
  204. Velocity Ball In Air
  205. Egg Drop Project
  206. (21-23) thermodynamics problem. Finding efficiency for the human body
  207. Spring Oscillation Problem
  208. Rotational Kinematics/Momentum Problem
  209. Pendulum Oscillations problem
  210. Confused on an easy SHM problem.
  211. error percentage
  212. Gravitational Potential Energy (Multiple Choice Question)
  213. Interacting gases - Thermodynamics question
  214. Finding density of an object
  215. Statics problem.
  216. Gravitation force at a point
  217. Spinning ball bounce off
  218. Isothermal process in a
  219. Coefficient of static friction
  220. Rain and man problem. (relative motion)
  221. Magnitude of vector, negative in part.
  222. using symmetry in electrostatic problem
  223. Heat capacity in ideal engine
  224. Differential amplifier with zener diodes
  225. simple question on energies
  226. Elastic collision with the floor
  227. Collision with an object after circular motion.
  228. Mechanics of Materials - Shear and Compression
  229. Spring motion/Friction/Freefall problem
  230. Basic kinematics confusion all derivatives 0?
  231. Finding reactions at the origin w/ angular velocity
  232. Special Relativity - Spatial Race
  233. What is force if acceleration is .75? (inclined plane)
  234. Emf
  235. What are the magnitude and direction of the friction force?
  236. Projectile Motion
  237. What is the largest value of Fw the cords can withstand?
  238. Circular motion with no frictional force
  239. Impulse, momentum and efficiency to find height formula
  240. Two cylinders rolling without slipping
  241. angular velocity of cylinder
  242. plane mirror image
  243. Work with drag problem. Blimp being pulled downward.
  244. acceleration of a particle...
  245. finding an expression for linear acceleration of a hanging mass
  246. Using hookes law to find impulse
  247. Block on Spring with Friction Problem
  248. Force between 2 parallel plates!
  249. Moment of Inertia of a Sphere
  250. hollow shere energy and velocity
  251. Finding the initial velocity using quadratic
  252. Question in thermodynamics-melting of ice.
  253. Deriving the Energy-Momentum Formula
  254. wavelength
  255. Theromdynamics
  256. Inclined plane with spring underneath.
  257. general motion mechanics
  258. Kinetic and Potential Energy on Ramps
  259. maximum height using newton's second law
  260. Rotational equilibrium question
  261. falling spade question
  262. What is Electrical energy measured in?
  263. Two masses coupled with a spring
  264. Damped oscillator consecutive amplitude ratio
  265. Conduction Problem
  266. Flux at Earth's surface and Poynting vector
  267. plotting electric field lines of a dipole
  268. Virtual Work-please help
  269. Trigonometry
  270. Quick induced emf question (exam tomorrow)
  271. Having trouble with this heat transfer problem
  272. RC circuit
  273. Physics, help find time.
  274. Two connected springs and potential energy as a function of x and y
  275. Newton's Laws question
  276. Eccentric rotation of a trebuchet arm
  277. Optics: I do not understand what this question is asking!
  278. Bohr Model
  279. Balsa Bridge help
  280. sinusoidal function, find its parameters ...
  281. Fnet Question!
  282. Bohr Model
  283. Single Slit diffraction
  284. parallel and perpendicular vectors with given magnitude
  285. Question on pulleys and tension
  286. Charges of two capacitors in a circuit
  287. Characteristic X-rays
  288. please i want explanation of dimensional analysis
  289. help with physics momentun concepts
  290. general physics homework.. please help
  291. Grade 11 Heat Capacity question
  292. Fluid Dynamics
  293. Magnitude of displacement
  294. circular motion/conical pendulum?
  295. Angular Velocity and Acceleration
  296. Gravitational potential energy (roller coaster)
  297. What formula do I use?
  298. friction/tension at an angle
  299. Relationship between momentum and inertia
  300. Physics, find the time it takes.
  301. How would I solve this?
  302. Can i get help with my F=ma problems?
  303. Localizing an electron problem (need help!)
  304. Broglie Wavelength
  305. Bohr model equations
  306. finding acceleration when given coefficients
  307. coefficient of friction problem
  308. Power and Electric Field problem
  309. a crashing train
  310. THermodynamics
  311. work of drag force
  312. Ball and Ramp. Kinetic Energy. Friction.Angular Momentum and Velocity.
  313. PV diagrams monatomic ideal gas
  314. Relativistic Velocity Transformations
  315. Compton Scattering - angle of deflected electron using momentum and energy conservati
  316. Fluid Mechanics
  317. Momentum of Skiers in a Completely Inelastic Collision
  318. Pendulum Problem
  319. Cannon Velocity after firing Cannonball
  320. United States Physics 1 With Calculus
  321. Hardest question on Physics exam
  322. If wind blows at 39 m/s over a house,
  323. Problem with Thermodynamics. Period dependence on temparature.
  324. The extended essay
  325. How can i determine Specific heat capacity of Water cpv if i know all variables
  326. United States Physics 1 With Calculus - Gravitation
  327. Rigid body rotation
  328. Determining Acceleration
  329. Kinematic Equation Homework Question
  330. heat engines
  331. Determinging Acceleration and Distance
  332. what is the net work done if an object is...?
  333. Simple energy dissipated problem but I can't figure it out
  334. Change in entropy
  335. Work/Energy Kinetic Problem
  336. Geometry of problem
  337. How does pressure affect temperature?
  338. Calculating weight of underwater object given normal force
  339. Heat Engine (efficiency)
  340. rms velocity and compression. Please help!!
  341. Experiment testing Rotational Kinetic Energy with a hollow cylinder
  342. Conservation of Four-Momentum Muon decay
  343. Where is this equation derived from? (general physics)
  344. Calculating water pressure, gauge pressure
  345. Spacetime Interval Problem
  346. Entropy
  347. Isobaric Compression
  348. Torque/Moment of inertia. Find the mass of the sphere.
  349. Calculating work
  350. What directions do the current and electric field point if the electrons move right?
  351. What magnitude of tension is in the wire?
  352. Induced EMF through a coil.. How/Why?
  353. Linear Momentum question help please!
  354. Frictional force
  355. Energy transfers
  356. thermodynamics and heat engine
  357. Change in sound intensity over distance
  358. pure rolling
  359. BaseBall Question (Momentum & Impulse in 2 dimensions)
  360. Jumping a dead battery in a car
  361. Need help with a Work and Energy problem
  362. Need Help with Problem...
  363. Energy conversion in a closed system?
  364. mass absorption coefficient of aluminium
  365. Work Air Conditioner Must Do To Keep Room Constant Temperature
  366. Calculate the force applied to the skateboard, and also the constant frictional force
  367. Forces and acceleration of truck and car collision
  368. Marble Speed on a Track
  369. Pendulum Amplitude and phase constant
  370. Direction of coriolis force
  371. Electric Field Strength problem.
  372. Acceleration and Mass
  373. Acceleration and Mass
  374. Circuit and Shielding Problems
  375. Marble loop roller coaster launcher!
  376. Finding the amplitude in simple harmonic motion
  377. Inelastic collisions between two blocks
  378. F=ma and Velocity equation
  379. Wavelength HELP!!!!
  380. Rotational Motion - Turn table
  381. Conversion of Mass to kinetic energy.
  382. Balance beam... help?
  383. Relation between stopping distance and Kinetic Energy
  384. Infinite Sheet Potential Question
  385. Add conductor between infinite sheet
  386. KVL Question
  387. B dot dl Question
  388. Farady Law Question
  389. Energy in RLC circuit
  390. Transformer Question
  391. Magnetic Field of Maxwell
  392. QWP Polarizer Question
  393. How should I use slow cross fast rule?
  394. When will I get total reflection?
  395. Tension in a pulley system
  396. Statics Problem with Trusses HELP PLEASE!
  397. Dimension analysis
  398. Rotational Motion with Elastic P. Energy?
  399. Resistors, parallel line notation?
  400. finding work, heat, and entropy in a heat engine
  401. Kinematic Energy Problem
  402. A confusing word problem. Can any one solve it?
  403. Concentric Metal Sphere - Gauss's Law
  404. Angular momentum problem
  405. Is it possible to "pump" a swing 360 degrees?
  406. Optics: Beams through a Prism
  407. Circular Motion (Orbiting Objects)
  408. AP Physics B is kicking my butt. Where are the AP Physics B FRQs?
  409. Coordinates of a particle (coupled differential equations)
  410. Why is the answer to this electricity question negative?
  411. Angular momentum of bicycle wheel
  412. Special relativity problem
  413. Use Conservation of Momentum or Conservation of KE for spring problem
  414. Static problem
  415. wave superpostion o
  416. Distance traveled after a collision
  417. Understanding Velocity in Waves
  418. Dimensional Analysis
  419. # of electron states in a subshell
  420. Sound intensity level, decibels
  421. Use Conservation of Momentum or Conservation of KE for spring problem
  422. Centripetal Force + Law of conservation of energy question.
  423. Need help with a circuit problem? (Picture attached)
  424. Transformers
  425. Constant acceleration
  426. Finding acceleration of two boxes connected to a pulley, kinetic and static friction
  427. How fast a disk is rotating??? Please help me
  428. a doubt regarding work and energy
  429. Average Torque on an Induced Current Loop
  430. required tension of rope around a cylinder to hold a object.
  431. Free body diagram of a tipcat
  432. Thin Film Interference- Transmission
  433. Thermodynamics, heat of fusion
  434. moment of inertia wheel and bug
  435. Work, distance and time problem
  436. equation help -- water pressure at bottom of a pond
  437. Normal Force problem
  438. I REALLY need help understanding this concept
  439. Can someone please help me on an equilibrium problem?
  440. Circular Motion- Vertical
  441. Kinematics One Dimension
  442. Electric field of a point near a dipole
  443. Gravitation
  444. Finding Time For Projectile Motion
  445. finding mass of a planet when density varies with radial distance
  446. Work with kinetic friction
  447. Projectile motion and mechanical energy and a bunch of other stuff....help
  448. Projectile Motion Question!! HELP!!
  449. Work Done By A Force of Constant Magnitude in Moving an Object in a Circle
  450. Universal law of gravitation problem
  451. I need help with my egg drop project
  452. gr 11, Projectile Motions question?!
  453. Rutherford scattering experiment question (urgent)
  454. question on Archimedes principle.
  455. Monkey force diagram and tension problem
  456. Tension problem
  457. Resonance frequencies question (first and second resonance frequencies)
  458. Moment of inertia of the sun
  459. Rotating rod with little rings that slides out
  460. metacentric height
  461. Calculator help: data entry
  462. trying desparately to wrap my head around proportional relationships
  463. Addition of Vectors Question
  464. Conduction rate problem
  465. Torque problem involving bicep holding ball
  466. Conversion of Galvanometer to Ammeter
  467. Will the impulse be negative?
  468. Electric potential --- doubt in sign convention
  469. Number of images formed by two concave lens, one displaced from optical axis
  470. Can you write the ideal gas law this way?
  471. Electric Potential related to velocity
  472. help me solve question from last months exam paper please
  473. Rigid Body Dynamics: balls colliding
  474. Free Oscillations of materials
  475. Please help to find normal force of the system.
  476. Time dilation equation
  477. In desperate need of help with this statically indeterminable problem..
  478. F = MA & Gravity?
  479. impulse,momentum and direction
  480. Are my answers correct? (newton's laws etc)
  481. Torque problem with scale
  482. Conservation of linear momentum applied to rotating systems? (with picture)
  483. Units of Coulomb's Constant
  484. How do black holes relate to physics?
  485. I need help with a problem from yale physics open courseware??
  486. Another Addition of Vectors question.
  487. Dropping from 4 times the height, how much longer does it take?
  488. Roller coaster problem
  489. Reading a P-V Diagram for heat in/out and work in/out
  490. Forces with angles, Find the acceleration
  491. Kinematics and also an energy
  492. Two blocks tied to a string with mass and accelerating
  493. Water Pressure in One Pipe Flowing to Another
  494. Taking the derivative of displacement
  495. How to arrive at answer for integration question
  496. Faraday Cage question
  497. finding entropy change when house leaks heat
  498. Basic Question about forces
  499. Statics problem - bridge made of 2 segments
  500. Movement caused by wind (changing force)
  501. application of archimede's principle
  502. Quick and easy question about what symbols to use (I already solved the problem)
  503. Fluid pressure (verification please)
  504. Thevenin equivalanet and max power question
  505. Which equation for flux?
  506. Energy conversions 7 marks
  507. Electromagnetism/Permeability Question
  508. Given 2 Vectors in the form of (x,y,z), and given the angle between them. Resultant?
  509. Field Intensity of Flat Capacitor
  510. Universal Gravitation Question (solving for distance)
  511. Pulley Tension friction help??
  512. Satellite Gravitational Forces
  513. Using Bernoulli to find volume of water to pass through hole
  514. Gauss's Law and Charges on Conductors
  515. Static Equilibrium and Torque Homework Question
  516. Apparent Weight in a Spinning Space Station
  517. Meteor Accelerating towards the Earth
  518. equation
  519. Totally lost, buoyant force
  520. is it wrong?
  521. Circular Motion (finding speed)
  522. Question about magnetic field
  523. Find the normal force on an inclined plane.
  524. Derive an expression for the acceleration of each mass and the tensions in the cord
  525. Maxwell-Boltzmann curve
  526. Magnitude of an Impulse
  527. Some Easy Questions About Electricity
  528. static equlibrium with friction
  529. Is the answer right?
  530. help velocity and mass given
  531. Moment of inertia of triangle rotated about y axis
  532. Merry-go-round
  533. Please help me
  534. what is the meaning of m3 kg-1 s-2 in gravitational constant
  535. Sand Car
  536. Kinetic Energy and Parabolic Motion
  537. Third resonance length frequency(which formula do i use?)
  538. Question regarding gravitational waves
  539. Hohmann Transfer Problem
  540. suddenly stop a moving moving vessel filled with gasses. What will change in temp?
  541. Pulley wheel rotation question
  542. Electron Acceleration & movement between a uniform magentic field
  543. Please can you help me to resolve this vector force?
  544. Sphere Charge Hanging on Thread (Electric Field Question)
  545. motion in two dimension help please
  546. Two Balls - One Suspended, One Stationary
  547. Statics: how do I know a force has to be perpendicular for it to be a minimal force?
  548. Find max height of inclined plane
  549. Air pressure inside pop can when heated help asap please
  550. Pulling my hair out over this one!
  551. Why does Fn = mgsinΘ
  552. A Helium Balloon and Buoyancy
  553. qestion about pressure transducer
  554. Simple Relativity
  555. Thermal Physics (Help me!!)
  556. Optics(Converging lens and Diverging lens)
  557. Torque question
  558. Kicked ball hits bird and falls
  559. Exam question, simple physics calculus.
  560. Power and rate of potential energy
  561. Magnetic flux through a coil. Field generated by a straight conductor.
  562. eqn for SHM, sin function, so why cos?
  563. Homework Problem related to acceleration due to gravity and force.
  564. Total power developed and kinetic energy
  565. THE CIRCLE HAS RETURNED(Help me please)
  566. Torque, equilibrium and calculating angle of forces
  567. work and energy
  568. Force of attraction between proton and electron
  569. How to produce a standing wave question
  570. Conversion from eV to J
  571. linear velocity of a spring with mass
  572. Horizontal Plane With Friction And Incline Plane With no Friction..
  573. Size of projected image on retina
  574. Moment of Inertia of a non-uniform density paraboloid
  575. Coefficient of Friction of a KE-Work-PE situation
  576. Applied friction point between two disks
  577. Center Of Mass Help
  578. Wheatstone Bridge question
  579. thermistor with op amp
  580. Solid angle/cone
  581. getting the electric potential function using the electric field components
  582. Electric Potential Energy Question With two Similarly charged Objects
  583. Block Sliding Down Circular Ramp (w/ Friction)
  584. SHM with unusual spring
  585. Direct current in electric motors?
  586. Rolling with no slipping problem
  587. Help Me With The Three Springs Problem
  588. electrostatic force problem?
  589. Formula for calculating distance traveled with uniform acceleration
  590. physics answers (i have a test tmrw and there is no key to this!) thanks
  591. Potential Energy of a spring problem
  592. Geometry problem
  593. ultrasound intensity in fat, muscle and bone
  594. Tennis ball hit by racket (momentum problem... I think)
  595. Can someone please help me understand this lesson? I tried, but I just can't get it !
  596. Wheel and axle system
  597. Simple Harmonic Motion question.
  598. AS Physics - Polarisation Problems.
  599. Two pulses on the same string, where & when do they cancel?
  600. Finding the phase angle for simple harmonic motion
  601. acceleration of system
  602. Torque- rigid objects in equalibrium/ center of gravity. need help
  603. Compton Scattering of a photon by a moving electron
  604. I was given this homework to do based on Newtons 2nd law, it was marked wrong 0% why?
  605. Forces and defining coordinate systems
  606. 2 simple question.. help please ?
  607. Measurement of Time
  608. UFO - time taken to travel to moon
  609. Radioactive decay
  610. Speed of Pi Meson - Relativistic question
  611. [Work/Energy] a particle inside a field
  612. homework help: work done on gas (Basic thermodynamics)
  613. finding average speed on a velocity vs time graph
  614. momentum of particles
  615. Finding the period of a simple pendulum given angular acceleration
  616. Centripetal force question
  617. I solved 2 simple question but i need to make sure.. help please?
  618. Find torque in disc brakes given normal force and coefficient of friction
  619. Acceleration
  620. Tension in a string
  621. Spring oscillation kinematics question.
  622. Energy of two charges in front of a plane
  623. Dimensional analysis - fluid divider
  624. potential energy stretched wire
  625. A MCQ on Power
  626. Working with archimedes principle.
  627. Rotational kinetic energy
  628. Lagrangian -> Equation of motion derivation
  629. Method of joints, force in each member
  630. Simple Harmonic Motion question.
  631. Need a good in-class note taking application
  632. How to more accurately determine an angle?
  633. surface tention problem
  634. Simple question about rotational motion
  635. Event simultaneity exercise
  636. Angles and rotational equilibrium
  637. Thermodynamics and steam, temperature... etc tables
  638. Natural State of Matter Rest or Motion?
  639. Finding the (Newtonian) movement equation of an object in a gravitational field
  640. What's the relationship between the amplitude and the Sound power level?
  641. Electric Potential
  642. magnetic field halfway between two parallel wires.
  643. Help.. 3 simple questions need to know the law, 2 question need to make sure only
  644. Ladder of mass M and length L, find kinetic energy in terms...
  645. ball thrown across a carousel - fictitious forces in polar coordinates
  646. Leaning Column Free Body Diagram
  647. Converting miles to square meters
  648. Torque on a coil in a magnetic field
  649. circular motion questions
  650. Gauge Pressure/Teapot Effect
  651. Water Pressure
  652. Simple Harmonic Motion question.
  653. sphere hoop
  654. Impulsive force question
  655. Pressure vs. Volume graph.
  656. Kinetic energy and potential energy work
  657. Coriolis Effect - Vertical Shot, solution through integration?
  658. Release block on a moving inclined plane.
  659. Global Warming
  660. Magnetism Question
  661. Another Magnetism Question
  662. Coefficient of Friction
  663. Quarter Wavelength Transmission Line
  664. Rocket propulsion
  665. Absolute pressure of air inside a meat baster
  666. Need help with physics question please
  667. Pressure and Temperature question: Ideal Gas Laws
  668. Method O' Joints, question about the Method itself, semi-urgent!
  669. Dynamics - Blocks on an Incline Plane
  670. Gravitational Potential Energy!
  671. A roller coaster car question
  672. Valence electrons of a transition element....
  673. T-v diagram at constant volume
  674. The Slowest fall / simple aerodynamics
  675. am i correct?
  676. Momentum values in quantum mechanics
  677. Refractive Index
  678. Euclidean vectors math to find coordinates for vector
  679. Steel wire holding fish
  680. how to work out "frictional torque"
  681. circular motion questions 2
  682. Special relativity problem
  683. more circular motion questions:
  684. hopefully last question on circular motion (on a cone)
  685. circular motion time/radius ratio question
  686. how to work out "frictional torque" and "resisting motion"
  687. Rocket
  688. One Dimensional Question
  689. Two Dimensional Motion/Projectile Motion
  690. DC Circuit - Total Resistance
  691. Study Guide Problems
  692. How to find max KE of electrons in photoelectric effect
  693. What does T represent in mc^2 equation?
  694. Vectors- Car on a ramp
  695. Lorrentz transform question about velocity
  696. Michelson Interferometer - Fringe Shape
  697. Convection, Conduction, Radiation
  698. Lorentz Length Contraction Derivation
  699. Young Double Slit Experiment (Determine wavelength of light source)
  700. Pulleys
  701. Dynamics problem: Rod on a rough surface
  702. Need help with physics concept please
  703. Please help calculating the uncertainty here
  704. Inclined planes
  705. power dissipated by a resistor
  706. Kinetic Friction, Undefined Pushing Force, Find Normal Force.
  707. Dynamics pully confusion..
  708. Physics kinematics SIN question
  709. Help Calculating focal length for magnifying glass
  710. Atomic Physics problem.
  711. Momentum and kinetic energy of pieces resulting from an explosion
  712. Marble Rolling/Projctle Motion
  713. # of Nodes / Branches of a Circuit
  714. A vessel filled with two liquid how to determine boant force?
  715. Quick Question About Equation
  716. Particle on a wedge relative acceleration
  717. Moment of Inertia of a Hemispherical Shell
  718. How do I work out "a" as in F= ma?
  719. A rocket accelerates upwards Mechanics
  720. kinetic energy due to heatloss
  721. Motion of two balls
  722. Electronics - Op-amps: when will the LED light up
  723. Coefficient of friction HELP please!
  724. Physics Photo
  725. Bohr atom problem.
  726. Sin/Cos In Equation
  727. Difference Between 2 Equations
  728. Free Fall Drop
  729. Force exerted on Bench Press
  730. Projectile Motions!
  731. Force in members of truss; section method
  732. Potential Energy of a System
  733. Tension in strings
  734. Doppler effect question
  735. Forces and Vectors in Equilibrium
  736. Projo with angle
  737. Projectile motions
  738. black body radiation question??
  739. wavelenght associated with electron
  740. Free Fall
  741. Electrons Colliding - Totally Confused
  742. Range-Projectile Motions!
  743. Can someone answer this easy phsyics problem about vertical height
  744. Help with problem
  745. Power
  746. Beer Mug Angle
  747. Concept of a new thermopiple array above 10% efficiency?
  748. Elastic Collision
  749. ellastic collision w/rebound
  750. looking for tutor
  751. Temperature change in an object
  752. Compute Heat capacity
  753. Calculating horizontal force from disc magnet
  754. Diffraction Grating
  755. Physics P-n Junction Diode Problem
  756. Final Equilibrium Temperature
  757. gravitation and velocity problem
  758. How to find energy of sound wave
  759. A simple change in gravitational energy, but I want to be certain.
  760. Physics average speed...
  761. Free fall with air resistance, must find velocity
  762. Help with problem
  763. Instantaneous Velocity
  764. Help with physics problem
  765. Thermodynamics, ideal gas, probability distributions
  766. When you can't figure out a physics problem
  767. E=mc^2 Derivation
  768. (Image Theory) Boundary conditions and how many image charges do i need?
  769. Entropy change of universe
  770. work input/output in adiabatic process
  771. Explain solution to me(Gravitation)
  772. moment of inertia of solid slab
  773. Coulomb's law in vector form
  774. angular speed and acceleration of a rod
  775. Pendulum
  776. Projectile Motions!Range!
  777. Centrifical Motion Theoretical Question
  778. Force on two touching blocks
  779. Problem with a spring
  780. Looking for A-Level Physics Exams!
  781. Partial Reflection-Partial Refraction
  782. acceleration of objects related to moment of inertia
  783. Thermodynamics, Helmholtz free energy, Legendre transformation
  784. finding the KE and the energy will be lost due to friction?
  785. Temperate a scalar than why negative temperature?
  786. Find the total Impedance Z
  787. Information from a wave
  788. Force induced by mass (very simple
  789. group velocity information
  790. Linear Momentum and Energy
  791. Forces on a wood-hacking machine knife
  792. Age of earth
  793. thermal expansion of tank and contents.
  794. Electric Forces and fields question
  795. Block Sliding, might use work energy theorum
  796. electric current? how many electrons?
  797. Conservation of Energy, Ball going down slope
  798. Relativistic Mass as described by Kenneth Krane in 'Modern Physics'
  799. Spring Launcher Design
  800. diffraction and interference presentation
  801. Force between capacitor plates, partially filled with dielectric
  802. Quick, Easy Question
  803. impulse/momentum
  804. the compressive longitudinal strain
  805. Determine the magnitude and direction of smallest force
  806. find parallel vector component
  807. Open switches, current
  808. Find the Gravitational potential if a small sphere is scooped out from bigger one.
  809. HELP!! Semester Exam on Monday!!
  810. Laser vs LED modulation
  811. Focal length calculations for a double convex lens?
  812. Momentum and Exit Velocity
  813. Tedious Algebra- Is it needed? - Coulomb Force
  814. Finding the time derivative of a trigonometric function
  815. Magnetic field outside a solenoid crossed by a current.
  816. Complex lens
  817. confusing free-body diagrams help
  818. Energy expended question answer check please
  819. any suggestion for a car safety physics project?
  820. Probabilty of finding the electron of the hydrogen atom in...
  821. prove that is it SHM or not?
  822. Calculating Cross Section from Neutron Absorption in a Gold Foil
  823. How to figure out acceleration in a F=ma problem?
  824. Relativity Question Regarding an Airliner (Light & ball movement)
  825. Atomic Clock Time Dilation Experiment
  826. Relativity Question Regarding Muons in movement
  827. Gauss’ Law – Don’t see how it proves that E field is zero anywhere inside a hollow sp
  828. Is voltage and amp constant in a current?
  829. Eigenvalues and eigenvectors of observables
  830. What are equipartitioned waves??
  831. Calculating charge when given electric field
  832. Can someone please explain this simple harmonic motion equation for me?
  833. Speed when Spring is Stretched
  834. Sig Figs
  835. Electric Potential Energy and Electric Potential?
  836. Center of Mass: Boat and regular pentagon
  837. how to use inductors and capacitors to increase power through resistor?
  838. Angular momentum Question
  839. Conservation of Energy Physics Olympiad
  840. Simple wavelength question?
  841. Electric Circuit
  842. Direction of forces
  843. Motion sensor..Positive or negative?
  844. Another Simple Physics Problem
  845. Dryness fraction of wet steam at 1 bar
  846. Reflection of a plane mirror and phase shift
  847. Rotational Motion Question
  848. A simple motion question ?
  849. to determine the mass of a liquid using an electronic balance?
  850. Simple Harmonic Motion Problem
  851. Biot-Savart's law of magnetic field " electromagnetic fields"
  852. Electrostatic Net Force Problem
  853. SI Units question in physics conceptual question
  854. Determine the direction of induced current in a wire
  855. Universal gravitational problem
  856. Physics question about waves?
  857. Impulse force integral
  858. Rotational Kinematics: Falling Rod
  859. Friction and internal energy
  860. electrostatic charge between a na+ ion and a cl- ion
  861. Spherical Capacitor half-filled with a dielectric
  862. 5 spring coupled masses
  863. Nonzero acceleration.
  864. Calculate the p.d. between two points
  865. Calculate the field within a hole on a charged sphere
  866. Pascal's Principle with Hydraulic Pumps
  867. Calculate the potential energy of a uniformly-charged sphere
  868. Friction/Inclined plane question, help would be appreciated :)
  869. Need help with Basic Kinematics question!
  870. electromagnetics
  871. Total Angular Momentum of 2 connected falling bodies.
  872. calculating the maximum load a lorry can lift
  873. Spring constant and length of string. *Need Explanation*
  874. mechanics - rotative motion
  875. Acceleration of Proton (Kinetic Energy & relativity)
  876. Building a self contained device for project
  877. Work and Power for a Plane Engine
  878. springs and strings
  879. Position-time graphs and tangent lines
  880. Work Power Engergy Thrown Toilet Roll Problem
  881. Buoyancy Problem
  882. Buoyancy thought problem.
  883. Challenging Problem Solving Help!
  884. Static friction at its maximum in relation to the magnitude of the applied force?
  885. Rotational Energy, Rolling downhill..
  886. Rocket motion - conservation of momentum
  887. Measurement of Temperature question.
  888. *Simple frequency and period question - Thanks!
  889. Help with calcuating force constant ?
  890. Coupled Oscillator
  891. Vector components on Tilted Axis
  892. Thermal Conductivity Problem
  893. Problem Solving about Archimedes' Principle
  894. Ideal GAS LAW
  895. Required Slope
  896. Calculating time from 0-75meter with power and weight.
  897. Maximum Acceleration along Parabolic Curve
  898. Velocity and Collision Problem
  899. Index of refraction and speed of light
  900. Frequency of oscillation (in Hz) question help! Thanks
  901. Conceptual Question about reference frames...
  902. Simple question,finding the charge on conducting sphere??
  903. How do you find the initial phase angle?
  904. Rectilinear Motion
  905. Car Collision - Which car was speeding?
  906. Could my teacher be wrong?
  907. RC Circuit Help Please!
  908. Work and spring constant questions?
  909. Finding the peak height of a projectile with DAVTU?
  910. Calculating the Velocity at the bottom of a Pendulums Trajectory.
  911. Resistance!
  912. motion
  913. Force Of Friction
  914. Internal energy and heat question.
  915. Vector and cosine law??
  916. measuring the speed of the moon
  917. Bernoulli's equation
  918. Counterweight in An Elevator System
  919. Need help with a seesaw torque question.
  920. Shearing Modulus/Shearing Strength
  921. Principle Second Moment Of Area - L shape.
  922. Quadratic Equation - I don't know how to put this in a formula..
  923. uncertainty for measurement
  924. Thermodynamics: cylindrical figures contains a gas...
  925. Confusion with rope tension... and monkeys
  926. Snell's Law for Light and Sound
  927. Calculate the magnitude of the net force on each charge
  928. Relationship between specific heat capacity and power
  929. Newton's Laws of Motion
  930. Projectile Motion Question
  931. Graph Question
  932. Rate of matter converted to energy
  933. Electrostatic exercise, Electrical charge calculation
  934. Linear superposition of solutions is a solution of TDSE
  935. Can a person hanging from a rope pull the person holding the rope up?
  936. Physics Olympiad Vector Acceleration
  937. How to make an experiment to find the value of the Drag Coefficient of a Cone?
  938. Phase of Motion (SHM)
  939. Is the upward Ff of a stationary block on an incline more or less than mg?
  940. Magnitude of momentum of an object to ensure the combined masses will be stationary?
  941. Kinetic/Potential/Mechanical Energy Problems
  942. Cross products- how to determine the angle?
  943. Electric force on a charge
  944. simple force vector problem
  945. Is there something wrong with this basic mechanics question?
  946. Axis question for electricity experiment question.
  947. Velocity - conservation of momentum and kinetical energy
  948. calculating vectors
  949. Is there is any change in time period if it is done inside accelerating lift?
  950. A Conceptual Difficulty regarding Potentials
  951. Does time period of SHM vary with frame(inertial and non inertial)??
  952. Friction
  953. Explain why long wave radio does not cut out in tunnel.
  954. Calculate the Sound intensity level
  955. Calculating functions for wave problems
  956. Finding speed on kinetic energy question
  957. Calculating Static Friction and the Coefficient of Friction
  958. Moments of Inertia Question?
  959. Free falling elevator
  960. Power, Energy Problem
  961. Conservation of energy Problem
  962. Conservation of Energy Problem with friction
  963. Simple Scientific Notation
  964. parallel circuits
  965. Magnetic Forces on Conductors and charges-- the motor principle
  966. Stress, strain and modulus - log hung from 2 wires
  967. Pulley Efficiency Problem (How much rope must be pulled)?
  968. A bullet shot underwater given a velocity function
  969. Derivation of angular frequency.
  970. Circular Motion HW Help!!!
  971. How sound waves detect faults in girders
  972. Orbital Motion Question
  973. calculating the potential energy of a spring
  974. Equation of motion canoe stroke
  975. Crystal Growth - Czochralski technique, finding concen. of dopant after growth
  976. Calculate the R-value of the stack of materials
  977. Solenoids and Lenz's Law
  978. Coulomb's Law
  979. calculating friction
  980. Finding thermal equilibrium of hot iron placed in water
  981. moment of inertia
  982. Charged Teflon Rod & Aluminum (Conductor vs Insulator type question)
  983. charge concept problem
  984. Ball dropped in viscous oil
  985. Acceleration Vector in Circular Motion
  986. Formula speed of a ball end of curved ramp
  987. Which of the graphs correctly shows the relation between the original position x of e
  988. Ray tracing diagram for white light moving through glass
  989. Archimedes' principle with 2 liquids
  990. how to derive the kinetic formula
  991. Spring hinges on door what is the ideal angular velocity exerted
  992. Using Lagrange Iden. to proof
  993. Matter & Photon Particle Comparison
  994. The components of vector are given as follows
  995. Relationship of frequency and nodes/antinodes
  996. Thermal radiation question. Please help me explain the theory!!
  997. Induction of emf in moving conductors in magnetic fields
  998. Electromagnetic force and some trig
  999. Charge density for basic physics
  1000. Is my teacher wrong? Problem dealing with forces.
  1001. PV Diagrams (Curve v. Straight)
  1002. Perpetual Motion (explain why it's impossible)
  1003. Rectangular Disk with Circular Hole Period Question
  1004. Electric field of Continuous charge Distribution
  1005. Spring Projectile Launcher Help
  1006. The magnitude of the vector difference , is closest to
  1007. Addition of Vectors using a scale diagram
  1008. trouble proving equivalence at limit
  1009. Thermal Expansion Problem
  1010. Weight Chart finding average
  1011. Eectrodynamics-neutral points?
  1012. Vertical Spring System Problem
  1013. Force on object located between two liquids
  1014. Incline Plane
  1015. finding the electrical
  1016. tug-of-war paradox
  1017. Mass flow rate through De Laval Nozzle
  1018. Total Mechanical Energy Problem
  1019. Large Uncertainty Became Unsignificant After Calculations?
  1020. Lenses question
  1021. Total Mechanical Energy Swing Problem
  1022. Uncertainty with Equations Question
  1023. The frequency(/time period) of oscillation for a 2 body spring system
  1024. What is the magnitude of the sum of the following vectors?
  1025. What is the efficiency of a pulley and how do we calculate it?
  1026. Another Uncertainty with Equations question
  1027. Specific heat (I'm not sure if it's capacity or latent)
  1028. Finding Currents in a Circuit
  1029. Find the magniture of the vector using the figure below
  1030. Very Simple Work/Energy Pendulum Problem
  1031. Refraction of Incident Ray Through Water
  1032. Horizontally Launched Projectiles
  1033. Ideal gas - monatomic or diatomic?
  1034. Power Dissipated by a Lightbulb
  1035. Calculating distance of an electron moving between 2 plates
  1036. Find the direction of vector R counterclockwise of the + x axis
  1037. Work/Energy Conservation Problem w/ Initial Velocity
  1038. Wavelength/Distance
  1039. fluid mechanics,wooden block in water and oil
  1040. factor volume changed
  1041. Equivalent forces in Statics.
  1042. Location of maximum electric field due to a ring of charge?
  1043. Equilibrium, Torque and Tension
  1044. Find acceleration on planet x given mass, time, height.
  1045. Electromagnetism
  1046. Electric Field and Electric Potential
  1047. Calorimetrey Problem -- Final Temperature of water
  1048. Physics 12 Help- Electomagnetism and Torque
  1049. Given the dot product and cross product of two vectors, find the angle between them?
  1050. Elastic Potential Energy and Energy Exchange
  1051. Electron-Atom 1-D Collision
  1052. Wavelength Speed Question
  1053. finding the mass of a particle, when its charge is known
  1054. Cross section of a stream flowing from a hole
  1055. Oscillating mass on a spring - non-constant mass
  1056. Finding Momentum of a fragment after explosion
  1057. finding the voltage of an oil droplet, Millikan's experiment
  1058. Force of an alpha particle
  1059. Displacement Question
  1060. tension
  1061. Charged particle attatched to spring.Find the period of oscillation?
  1062. Gravitational Acceleration and Determining Height
  1063. What are gravitational units??
  1064. measuring the mass of tritium
  1065. Torques on a rectangular plate
  1066. rotation around center of mass
  1067. Satellite Orbiting around the Earth (gravitational fields)
  1068. Thevinen
  1069. Propulsive force
  1070. Centripetal Force Lab Percent Error and Accepted Values Help PLEASE
  1071. object sliding down horizontal, frictionless slope, crossing horizontal surface
  1072. expansion of mercury in a thermometer
  1073. [Statistical Physics] Spin-1 atoms in uniform magnetic field
  1074. Conducting sphere surrounded by insulator with dielectric constant..
  1075. Calculating the number of photons in a wave
  1076. Elastic Energy Equation
  1077. Damped Oscillator
  1078. Barometric formula and height ratios
  1079. Stresses and change in length in a compound bar
  1080. Initial acceleration of a charged particle
  1081. Classical Mechanics Kleppner Problem
  1082. Thevenin equivalent for strain gauge bridge
  1083. Physics w/ Calculus, Ch. 1 question: Vector Addition
  1084. Force and Air Balloon problem help
  1085. Simple displacement question
  1086. 1-D Kinematics
  1087. Please me help with this acceleration question
  1088. Acceleration Question
  1089. Barometric formula to calculate ground pressure
  1090. A question on momentum.
  1091. Multiplying Fractions
  1092. The components of Vector A are given as follows
  1093. Newton's 1st, 2nd, & 3rd laws of motion
  1094. Stop Sign Question
  1095. Height with Velocity Question
  1096. Simple Harmonic Motion Problem - Need help! Thanks...
  1097. Car Cliff Equation
  1098. Total elastic potential energy of a compressed spring?
  1099. Specific Heat
  1100. Integral of solids with linearly decreasing charge density
  1101. Calculating the rest mass of Ra [simple!!]
  1102. Water verses Steam Burns
  1103. Pressure on a Dam
  1104. Buoyancy (A Boat in Water vs Alcohol)
  1105. Electricity; Calculating Resistance.
  1106. Conservation of linear momentum at the skating rink
  1107. The Circle... (sorry for my slacking)
  1108. Electric Field and Force
  1109. How to sketch harmonic component graph?
  1110. Help With Kinematics!
  1111. Dimensional analysis
  1112. What is magnetic flux and magnetic flux density? Please keep it simple.
  1113. Spring constant and oscillation expression? Help.
  1114. electrostatic fields
  1115. Help needed calculating speed distribution
  1116. De Broglie wavelenght as a function of an accelerating potential!
  1117. Buoyant Force
  1118. Derive an expression for the flux through a sphere
  1119. torque, angular acceleration, and moment of inertia
  1120. Kinematic One-D
  1121. Force exerted on bicycle to maintain cosntant speed
  1122. Toppling cylinder angular velocity
  1123. Motion problems using antiderivatives
  1124. Tension of a cable as a result of a pulse (wave)?
  1125. A bead slides on a circular wire
  1126. oscillating, hanging spring-block system
  1127. Box resting on an inclined plane
  1128. Vector Notation Inconsistencies
  1129. Radiation pressure of a light bulb
  1130. Eigenvalue Question (p2.14 in Quantum Chemistry and Spectroscopy)
  1131. Throwing a ball in a 2D projectile motion and lands on an inclined plane
  1132. calculating the wavelength of an electron
  1133. thermodynamic prob
  1134. Cambridge Physics Problems Help
  1135. To find out mode of vibration of air in a resonating pipe
  1136. A yo-yo pulled by a rope: limit angle for the yo-yo to go to the left or to the right
  1137. Using the Elastic equation to find the final velocity
  1138. Electric Field Question Help! (don't know how to get started)
  1139. Help! Work, Energy and Power!
  1140. Electric Potential Energy of a Charge Distribution
  1141. Time taken for fluid to start flowing
  1142. Relative molecular mass using unified mass unit
  1143. Youngs Modulus of copper wire experiment
  1144. electric field of infinite nonconducting sheets
  1145. space station-nature of orbit?
  1146. doped semiconductor-to find the resistance?
  1147. Particle physics problem
  1148. Cylinder over a platform; force on the platform
  1149. Mechanics Problem
  1150. Momentum test problem help!
  1151. Finding the Mass of An Object as It Slides Over a Frictionless Surface
  1152. work done by engine pulling up a mass
  1153. Vector Velocity Problem
  1154. Electricity Circuit Analysis
  1155. Distance travelled by a thrown object
  1156. Conservation of Momentum
  1157. Electrostatics - Electron passing through charged plates
  1158. Writing Vector Equations for positions of toy cars in the form r=a+tb ?
  1159. Two Electrons and Distance Equation
  1160. Surfaces @ Angles 2D Help
  1161. Thermodynamics Problem (HINT PLEASE)
  1162. Who is most likely to be hit by lightning...
  1163. Esacpe speed - energy required
  1164. Speed of Sound?
  1165. Electric Current
  1166. Two Charges - Electric Potential Question
  1167. Photoelectric Effect and the conversion ofPlank's constant from V.S to J.S
  1168. Determine the direction of movement of a point on wave
  1169. Kinematics Physics (Relating velocity/time graph to displacement/time)
  1170. Physics convert units
  1171. Snell's law/Deriviation
  1172. Calculating how many neutrinos passed through a body
  1173. Work expended moving a charge
  1174. Is there a "magnitude of momentum" quantum operator?
  1175. Finding Net Coulombic Force
  1176. Creating a Buoyancy Lab
  1177. How do I calculate the angle between three-dimensional vectors?
  1178. Calculate net gravitational field on the moon, without knowing its mass?
  1179. 2D momentum collision question
  1180. Find the energy stored in a spring at .05m and .10m
  1181. Understanding colors (Lights And Optics)
  1182. Virtual image??
  1183. Coefficient of kinetic friction question
  1184. RFC own vs. provided solution of optics task
  1185. simple harmonic motion: time for maximum speed
  1186. Another Kinematics 1-D
  1187. clarification on an electric fields solution
  1188. A Sinusodial wave is propagating
  1189. Question
  1190. Radiator radiation. Which way to place clothes horse for the fastest drying?
  1191. period of oscillation for a pendulum
  1192. Checking a question involving impact/impulse forces
  1193. Simple average question using sig figs within ± 0.0 of uncertainty?
  1194. Electric Field of a uniformly charged rod
  1195. Metronome question: Figuring out net torque and expression for beats per minute?
  1196. Electric Field & Flux, A loop & Charge
  1197. Pressure equilibrium
  1198. Prove
  1199. kinematics question concerning the direction of avg acceleration
  1200. Waves type problem 1)
  1201. This doesn't seem to be working? Relativity...
  1202. Coulomb's Law
  1203. Coulomb's Law - Electric Force Between Two Copper Coins
  1204. Buoyancy and Weight
  1205. Changes in EMF due to a bar magnet falling through a loop of wire
  1206. Dot Product confusion (no calculations involved)
  1207. Simple sinosudial wave in string. What will be velocity of the particle?
  1208. circular motion - banked angle?
  1209. what will speed of sound for sourse and observer if both are moving wrt air?
  1210. Accerleration from power, mass & speed
  1211. Find the electric field produced by two rods...
  1212. Show that in this fusion cycle, the energy released is about 30 MeV.
  1213. Electric Fields and Potential Difference. Combining Formulae
  1214. "Mass' versus "Amount of matter"
  1215. Please help me identify this equation and the theory
  1216. Aerodynamic power
  1217. Coulombs Law - Finding Force When Altering Distance
  1218. Find charge given current and time?
  1219. Energy - Finding Spring Constant
  1220. Boltzmann constant- temp, pressure
  1221. relativistic mass and work problem
  1222. Velocity before collision
  1223. Grade 12 Gravitational Force Fields Questions.
  1224. Simple Harmonic Motion/Energy: Damped Oscillations and Energy Dissipation
  1225. drawing spectral lines
  1226. hydrogen atom energy
  1227. Dimensional analysis (Speed of sound)
  1228. Sound Intensity Level and Hearing Problem
  1229. 2D Momentum Problem
  1230. Deflection angle of a comet traveling around the Sun
  1231. Classical Mechanics: Simple harmonic oscillator problem
  1232. Grade 12 Force Field question
  1233. coulomb's law point charges distance for 0 net force
  1234. freely falling objects
  1235. Double Slit Wave Interference Question
  1236. Vector notation
  1237. Mutual attraction force - did I do something wrong?
  1238. electric field of a cylinder?
  1239. Circumference C of a circle of radius R inscribed on a sphere
  1240. Physics GCE Question - not allowed to use conservation of baryon/lepton number
  1241. Change in Temperature Equation HELP!
  1242. Static equilibrium for three point charges
  1243. Car impact at 90 degrees to each other (conservation of momentum)
  1244. Sciene fair project, freefall stuff - need one equation for time
  1245. Charges, Electric Fields, and Work?
  1246. Current and voltage
  1247. Electric Field of Three Point Charges
  1248. Find potential difference of negative charged particle?
  1249. curve fitting of a damped harmonic oscillator
  1250. Gravitational Pot. Engergy & Electrical Pot Energy
  1251. SOMEONE please, please help.
  1252. Finding momentum, friction, and forces
  1253. Finding the electric field at 3 points due to 2 identical charges.
  1254. Finding Joules of heat for 75% efficient motor at 250hp.
  1255. Momentum Lab - Help!
  1256. Find the Current at a Certain Point
  1257. Charge & E-Field: Sum of Vectors of 3 different charge
  1258. Rod Suspended in Fluid
  1259. Short Grade 12 Gravitational Problem
  1260. Finding Specific Heat of oil with an electric heating coil
  1261. Need to calculate acceleration from total distance travelled.
  1262. Centripetal acceleration/ motion question
  1263. Help on a dynamics/kinematics problem.
  1264. What is the magnitude of the net electric field at the center of the square due to
  1265. finding magnitude, sense, and direction
  1266. Impulse Momentum Theorem + Egg Drop??
  1267. Momentum and Impulse: Dropping an Object
  1268. Resultant Vector - Chin Brace
  1269. Subtracting this vector - as opposed to adding it
  1270. Kinetic energy with compton effect
  1271. Kinetic energy of a recoiled electron when backscattered
  1272. Energy Conservation Design Lab Idea
  1273. Speed of Waves on Strings
  1274. Normal modes/Free modes
  1275. Finding charge so that the electric field is zero
  1276. Finding acceleration in two blocks, one hanging and other on board.
  1277. Calorimetry: Thermal energy going into translational KE
  1278. Introductory Relativity, Time Dilation
  1279. Acceleration and Velocity Direction
  1280. Acceleration when only distance is given for a single second
  1281. Determine the atom density of (100), (110), and (111) planes of a Silicon crystal
  1282. E-field inside a non-conducting hollow pear.
  1283. System of particles passing over a pulley
  1284. Surface density.
  1285. Find the charge distribution pattern.
  1286. Why do some people say that Newton's Second law is the real Law of Motion?
  1287. Force and pressure done by molecules
  1288. Filling the wheel with air (ideal gas)
  1289. Conceptual problem on capacitors
  1290. Electron moves from .93c to .99c in some amount of time, how far does it travel?
  1291. Help with Potential Energy Curve question
  1292. Simple Harmonic Motion + Regular Kinematics
  1293. Determine the velocity at which the bullet-block system hits the ground.
  1294. Finding distance with net electrostatic force
  1295. The use of the word "see" in relativity
  1296. Center of Mass Question
  1297. charging and discharging capacitor
  1298. HELP with Charges
  1299. Temperature and molecular kinetic energy. [PLEASE help me]
  1300. HELP with Charges
  1301. waves and sounds, finding the speed of a jet using the speed of sound
  1302. Help with Coulombs Law
  1303. Energy needed to reach planets orbit and leave to leave it.
  1304. Help with Coulombs Law
  1305. Difference between "Position Vector" & "Displacement Vector?" (no calculatins..)
  1306. Coulomb's Law and Tension
  1307. 2011 F = ma Contest Question # 25
  1308. simple harmonic oscillator
  1309. Four Charges
  1310. Help please due tomorrow
  1311. Calculate Acceleration Given V0 and X
  1312. Using Graph to determine constants in equation
  1313. Parallel Springs subject to load
  1314. Coulomb's law (place charge so it has no net force) - only have 2 hours, help please!
  1315. Unit Vector polar in terms of cartesian
  1316. Simple Projectile Motion
  1317. Mass on an incline plane
  1318. Help! I'm in a real-life physics jam!
  1319. Deriving position from angular velocity on a rotating sphere.
  1320. Collision. A moving object hits a stationary object and moves at an angle
  1321. I'm having a lot of trouble converting units
  1322. Tough distance formula. (Answer provided), but how to get the answer?
  1323. Calculate Molecular Mass
  1324. Pressure in a manometer - Absolute pressure
  1325. Crate on a frictionless ramp, constant speed.
  1326. vibration problem given Force,length and mass
  1327. L'hospital's Rule Problem
  1328. Electric field as a point P
  1329. Help with Spring Question!!
  1330. How to distinguish node and anti-node for a 1 end closed,1 end open cavity for sound?
  1331. Distance a Block Moves up a Ramp
  1332. Force required to accomplish acceleration
  1333. Wavelength to frequency
  1334. Linear acceleration of a rod fixed to a hinge at one end
  1335. Calculate the decibel level
  1336. Average torque of a rotational freefall
  1337. Why is the H-field inside a magnet reversed?
  1338. Calculating a and b in excel (any excel masters)?
  1339. Genral question about velocity
  1340. Two charged beads and maximum velocity.
  1341. [extremely easy question] the sign (+v or -ve) of potential energy
  1342. Special Relativity: Find the reference frame in which two events are Simultaneous
  1343. Simple Harmonic Oscillator
  1344. Relativity: Time Dilation and Length Contraction
  1345. velocity of two equal charges placed by one another
  1346. Calculating the number of particles colliding with an area per unit time
  1347. Closing a Circuit
  1348. Nonuniform Semicircle of Charge
  1349. Resistance and Temperature in conductors and semiconductors
  1350. Find New Frequency When Length AND Diameter Is Decreased?
  1351. Linear Air Resistance need help with a proof
  1352. Finding Acceleration in f=ma
  1353. Total energy of a geosynchronous satellite
  1354. Spring System in Harmonic Motion. How do I find ...
  1355. Simple Question: potential difference between two points on circuit
  1356. Placing charges with coulomb's law problem
  1357. Charged Sphere with off-center cavity Electric field
  1358. Wave function question
  1359. Electric Potential due to a charged conductor
  1360. Reflection and Refraction
  1361. angular frequency of mercury in U pipe
  1362. Dynamics of Circular Motion
  1363. Problem with understanding the definition of magnetic flux.
  1364. uncertainties
  1365. 2D Kinematics - Projectile Motion
  1366. Find the Power to move a car on an incline
  1367. Angle changes in Relativity (Shooting the Deathstar on a flyby)
  1368. Kinematics: Distance and time with limited acceleration and deceleration
  1369. How to determine resonance of an open or closed pipe?
  1370. Moment about a point?
  1371. Electric Force
  1372. Electric Potential Difference
  1373. find the period of a particle with only max vel. and amplitude
  1374. Physics with Application; Acoustics; Trumpet
  1375. Finding mass given force and acceleration
  1376. Lamps in series and parallel
  1377. Calculate the size of the cross section relating to tension
  1378. my answers seem ok but differ from book.
  1379. Entropy change in a system with 2 subsystems
  1380. a question that asks you to figure out the mass of the moon
  1381. Calculation of variation of entropy knowing state's equation
  1382. Using 5 point charges, finding the charge of q1 and q2 using given force...
  1383. Two polystyrene balls, one has a charge twice the amount than the other..find charges
  1384. Buoyancy force of a hot-air balloon
  1385. Two identical small metal spheres 3 cm apart...
  1386. Acceleration caused by bending the knees
  1387. Grade 12 Physics Question
  1388. Electric field at a point charge
  1389. Projectile Motion Ball off Cliff Help
  1390. Electric Potential due to a charged conductor(sphere within a sphere)
  1391. Effect of Instantaneous Velocity Change on Orbit
  1392. Pressure with Depth; need help understanding Apparatus
  1393. Coulomb's Law (Finding magnitude & direction of net force)
  1394. Total Charge on the Surface of a Drum
  1395. Kinematics: Initial velocity of second rock if 2 rocks are thrown up?
  1396. Electric potential of two spherical shells
  1397. 2D Conservation of Momentum Question
  1398. Finding out the horizontal force required to make an object move.
  1399. Air resistance on a suspended object in motion
  1400. Finding kinetic energy between parallel plates
  1401. Doppler Effect; Two Moving Objects
  1402. A ball is thrown up... solve for variables, kenimatics
  1403. Height of water level in an open ended fully submerged can
  1404. Kinematics:Interpreting graphs and deriving equations(Check my solutions please)
  1405. Speed, Velocity and Acceleration Problems with Two Objects Involved
  1406. Why there is no deviation of light ray when it enters a semi circular glass block?
  1407. Electric Forces
  1408. Uniform electric field problem
  1409. Simple point charge location problem
  1410. Electric field changing formula variables problem
  1411. Ideal Gas Law Problem (Please help!!)
  1412. Tension in a spiderweb
  1413. Coulomb's Law Problem
  1414. Projectile Motion given only distances
  1415. Electric flux changing forumla variables
  1416. co-ordinates transformation
  1417. Electric potential and conservation of energy
  1418. Estimate Water Volume
  1419. electric field formula problem
  1420. Compton Effect Question
  1421. Vector component question
  1422. Simple Harmonic Oscillation on a guitar string
  1423. Trying to understand how to make Motion Diagrams
  1424. The cause of buoyancy in terms of the molecules
  1425. new memeber. ball trajectory puzzle
  1426. Finding the resultant couple moment
  1427. Volume of Stone submerged in Water
  1428. Electric field outside a long cylindrical shell
  1429. Oscillatory Motion and Periods
  1430. Electric Forces and Coulomb's Law Problem
  1431. How To Know When To Use Which Motion Equation
  1432. Can someone help explain me a problem?
  1433. Kepler's laws and orbits question?
  1434. infinite system of wells
  1435. Sound and decibel changes
  1436. How did the Bohr Model improve the Quantum Mechanical Model?
  1437. Question about notation in physics
  1438. Car collision using multiple formulas
  1439. car stopping at top of hill
  1440. E & M, E-potential and energy due to charged plate/ rod with infinite length
  1441. Drawing 2D Velocity Structures???
  1442. fourier transform
  1443. Simple Harmonic Oscillation with given equation
  1444. Conservation of Energy (answer in Netwons)
  1445. 2D motion help
  1446. Kepler's laws and orbits question?
  1447. Proving the conservation of momentum when two masses are not equal
  1448. Help with proton moving through magnetic field.
  1449. Biot Savart's Law
  1450. Equivalent resistance with possible short circuit
  1451. Finding x and y Components of Vector Sum
  1452. Latent Heat, Some Density, and God knows what else...
  1453. How to determine acceleration from one point to another on a velocity vs time graph
  1454. Energy loss, stopping power equation, please help
  1455. Formula for the Electric Field Due to Continuous Charge Distribution
  1456. Velocity of a Boat and Float vs. Water
  1457. At what angle will two pendulums collide?
  1458. Forced Oscillator where Damping is Negligible
  1459. Find Velocity when Acceleration Vs Time Graph
  1460. Finding Frequency of an Oscillating Disc with a Hole
  1461. Finding the magnitude of the nearest peak and period
  1462. Thevenin Circuit help
  1463. Advantages of Electron Scattering over Alpha-Particle Scattering?
  1464. Adding Vectors:
  1465. Kinetic Energy question
  1466. Entropy change for van der waals gas Problem
  1467. Need help with Momentum Principle problem!
  1468. Check my answer please
  1469. Word problem
  1470. Circuits-dependent source
  1471. Curvilinear Motion
  1472. Creating Electric Field
  1473. simple ray Optics question... please help!
  1474. spherical mirror;find focal length from given data?
  1475. Michelson Morley Experiment for Arbitrary Angle
  1476. Buoyant Force
  1477. Motion problem
  1478. 3 Forces on a Ring
  1479. Air resistance co-efficient
  1480. princip of linear impulse and momentum, Difference btw. impulsive/nonimpulsive forces
  1481. Wave Question
  1482. Continuous Surface Sources
  1483. Vectors
  1484. Concept of electric potential
  1485. Acceleration on an incline with friction
  1486. Finding the maximum kinetic energy of a harmonic oscillator
  1487. COP refrigerator vs COP Heat Pump
  1488. Finding Cosine of an Angle in 3D space
  1489. Angular speed after collision
  1490. Problem With Repulsive Charges
  1491. Centripetal Circular Motion
  1492. connection between potential difference and velocity?
  1493. Critically Damped Oscillator Spring Constant and Damping Parameter
  1494. Does work increase if q increases?
  1495. Problem with Friction dependent on velocity, mostly a math problem.
  1496. Starting point in linear motion problem
  1497. Finding the coefficient of kinetic friction
  1498. Finding how much heat it takes to vaporize
  1499. Hooke's Law: Spring, Distance and Time
  1500. Electric potential and conservations of energy
  1501. Finding out applied force in order to get acceleration
  1502. Help computing unknown charge
  1503. Speed and Velocity(Driving Me Crazy)
  1504. Metabolic Rate Problem
  1505. A Cannon Fires Projectiles on a Flat Range at Fixed Speed but with Variable Angle
  1506. Conservation of Momentum Problem
  1507. voltage across coiled wire with varying electric current
  1508. Electrostatics problem: solve for where E=0 given a configuration of charges
  1509. calculate the torque of a hinge in a dam
  1510. new to physics have a couple questions
  1511. changing phase by reflection
  1512. AC Circuit Analysis: LCR & Resonance
  1513. please help
  1514. Constant Acceleration Problem
  1515. Calculate the mass of steam condensed!
  1516. Kinematics question
  1517. Heat Exchange: Ice added to water
  1518. Voltage-current equation of Thevenin circuit
  1519. Recoil hydrogen emitting photon
  1520. Change guitar string tension given two frequencies
  1521. Gravitational Fields and Density.
  1522. How do you find time period of an oscillatory motion(not SHM)
  1523. Magnitude of Displacement problem
  1524. Atwood Machine Equations
  1525. electrostatic force lab debate
  1526. Egg Drop Contest
  1527. Finding an electric field on a disk using surface charge density
  1528. Horizontal cable with one vertical point force
  1529. Work Done On Ideal Gases
  1530. Solid state physics-effective mass problem.
  1531. [Gauss' Law] Hollow insulating sphere?
  1532. Find the distance between objects and sound source
  1533. Arc of Charge
  1534. Absolute Uncertainty question! Help!
  1535. Finding Electric Field at point P
  1536. *SIMPLE slope question on graphic - Units?
  1537. Newton's Second Law Conundrum
  1538. Energy efficiency - purchasing the right furnace
  1539. Acceleration in Two Dimensions
  1540. Phys Unit 4 - Swings
  1541. Work Integration Question
  1542. An Experiment Consists of Pulling a Heavy Wooden Block Across a Level Surface...
  1543. Thermal Properties -- Energy and velocity of molecules
  1544. Electric Potential !!
  1545. Length of a Pendulum
  1546. Heat Engines problem
  1547. Solving force systems
  1548. Finding initial kinetic energy
  1549. Heat Engine problem 2
  1550. Delete
  1551. Finding the number of spheres in a graduated cylinder
  1552. Soundwave Intensities and power
  1553. Plank and torque, problem with finding center mass
  1554. Calculate volume and surface area of a boiler
  1555. Atmospheric Pressure Sounds Intense
  1556. Compression of a Spring
  1557. Electric field inside a solid conducting sphere carrying charge q.
  1558. Doppler Effect Stationary Source/Observer on a Spring
  1559. Truck Bed Friction Problem
  1560. sound of overhead plane is heard in the distance
  1561. Length contraction
  1562. Heat capacity & Latent heat Simple question
  1563. Electric potential and conservations of energy
  1564. Tennis Player Tosses A Tennis Ball Straight Up...
  1565. Vapor pressure and the boiling point of a liquid
  1566. Free Fall of Rock off Tower
  1567. To find out the frequency of AC mains using a sonometer
  1568. Impulse and Momentum
  1569. One dimensional motion-- object accelerating straight downwards
  1570. Finding The Initial Velocity & Angle
  1571. Point charges
  1572. Conducting Sphere?
  1573. Vector Subtraction- Magnitude
  1574. Kepler's 3rd Law vs. Newton's second for Satellite...
  1575. Amplitude of Simple Pendulum
  1576. Area under acceleration-time graph?
  1577. Kinematics Problem
  1578. Calculate Brewster angle for glass
  1579. Polar coordinates of an electric field
  1580. Static Electricity and Algebra Problems
  1581. Maximum charge and voltage on a sphere
  1582. Kinematics In Two Dimensions - Archery
  1583. Time required to charge capacitor to percentage of max capacitor voltage
  1584. Develop an expression for Temp as a function of time
  1585. Two spheres hanging, find charge.
  1586. Resultant Frequency of two unlike soundwaves
  1587. Total energy of a star in terms of average temp.
  1588. Thermal Expansion of Brass piston in Steel cylinder
  1589. Energy mass equivalence
  1590. Projection up an inclined plane
  1591. Charge in a capacitor
  1592. Finding out the mass of an object given only height
  1593. Potential energy of a pyramid
  1594. current
  1595. two-deminsional motion problem: HELP!!
  1596. Energy needed/energy lost
  1597. Work done by normal foce
  1598. Linear Motion - Minimum Retardation to Avoid Crash?
  1599. [Electromagnetism] How much work is required in moving Q3 to infinity?
  1600. Help with rotational dynamics
  1601. Estimate Water Usage
  1602. Rotational Speed/Linear Speed help, need confirmation
  1603. Simple Rocket Problem
  1604. spring force with free fall problem
  1605. Ball thrown upward given time
  1606. Circuits and capacitance
  1607. Projectile motion: Finding out the time and Dx
  1608. F = ma 2007 Exam - Question #25 - SHM with a box in water
  1609. Define Angle of Projection with The Given Parameters
  1610. Vaidity of rotational formulae for variable acceleration
  1611. Finding vectors parallel and perpendicular to plane
  1612. First Overtone
  1613. Dropping sand onto a conveyor belt
  1614. Longest and shortest distance in an elliptical orbit
  1615. Kinetic rotational energy problem
  1616. Change in velocity when given a graph that shows time and acceleration
  1617. Bernoulli's law for water coming out of a faucet
  1618. Landing angle of ski jumper
  1619. Energy Threshold for 2 proton -> 2 proton 1 Pion
  1620. Where When Physics Problem with 1 obj going up and the other going down.
  1621. Electric Potential outside of a spherical conductor
  1622. Upstream and Downstream one dimensional motion
  1623. Expectation Values Question
  1624. Where an electric field is equal due to two charges?
  1625. Throwing ball
  1626. Projectile Motion Problem
  1627. Friction during pure rolling up an inclined plane.
  1628. Experiment with rolling balls--Why were results different at different heights?
  1629. Special Relativity: Time Dilation
  1630. Effect of radius changes on electric fields and potential difference?
  1631. Convection or Radiation
  1632. (Mechanics)An interesting question about projectile
  1633. Fluid Statics in U-Tubes
  1634. fluid mechanics
  1635. work on a syringe
  1636. physics problem with masses and pulley and a ramp...
  1637. capacitors and energy
  1638. capacitors charge and voltage relationship
  1639. capacitance and charge
  1640. Finding the current through a circuit
  1641. applying conservation of mass to a falling plywood
  1642. diverging and converging lens
  1643. Maximum range of a projectile when launched at 45°(Physics by example, Rees, pr. 14)
  1644. Are there Electrostatic Fields at infinity?
  1645. Underdamped Harmonic oscillator with applied force
  1646. Bouncing ball experiment
  1647. Projectile motion
  1648. Special relativity
  1649. Circuits and capacitors
  1650. Solving capacitor circuits? Help?
  1651. Spacecraft Slingshot
  1652. Capacitor circuits
  1653. Quantum-mechanical three-state system
  1654. Why is the electric field inside a conductor zero?
  1655. Pivoted beam with force at one end and spring attached to the other end
  1656. 2D Collisions
  1657. Velecity of a galloping horse
  1658. My calculations - youngs modulus
  1659. maximum initial speed the electron can have without hitting the negative plate
  1660. Help finding instantaneous velocity graphically
  1661. Finding the current in a resistor
  1662. Potential of Infinite Sheets of Charge and Conducting Slab
  1663. 2011 F=ma #13
  1664. 2009 f=ma #24
  1665. Rectangular box tips over (or not)
  1666. I have a problem finding the permitivity of acetate, can some one help me
  1667. Electric fields and spheres
  1668. Static Electricity Lab
  1669. Question on 2d charge arrays
  1670. Resultants of Nonconcurrent Force Systems
  1671. Electric Fields using Gauss' law
  1672. (Homework Help) satellite in Molniya orbit
  1673. find electric field on sides of conducting plates
  1674. Electric Potential over a rod
  1675. Components of a Vector
  1676. Speed related to Average Velocity
  1677. Finding pressure due to a fluid
  1678. Fluids at Rest and in Motion
  1679. A quick uncertainty question
  1680. Projectile Motion: Finding angles given velocity and impact coordinates
  1681. Depth of a finite square potential problem
  1682. Projectile motion /
  1683. Static Equilibrium Pulley Problem
  1684. Simple RL circuit
  1685. Some issues with adding 2 vectors
  1686. Question about Centripetal Force (How it could make object glued to the wall.)
  1687. Work done moving two charges together
  1688. acceleration and curvature radius
  1689. Question about uncertainties after applying cos
  1690. 2 dimensional harmonic oscillator.find the energy eigenvalues?
  1691. Calorimetry Question ;(
  1692. Need a demonstration of interference in Waves
  1693. Rotational analysis of chain and sprockets system
  1694. Formula that describes a variable magnetic field
  1695. Flux for an Infinite charge line through a cylinder
  1696. complex numbers/matrix
  1697. Specific heat capacity and changing temperature of water
  1698. Different significant digits in uncertainty and data?
  1699. Ampere's aw-conductor.
  1700. Magnet in a copper tube
  1701. Temperatures of an ideal gas
  1702. Proving Kirchoff's Laws algebraically
  1703. 4 charges, find potential
  1704. what is necessary for an object to move?
  1705. Waves and Optics question
  1706. Circular mass, finding multiple variables
  1707. Ideal Gas law and mole conversions
  1708. Forces problem
  1709. Coulomb's law electric field charge on y axis
  1710. Electric Field Help
  1711. [objet falling] Air resistance / terminal velocity
  1712. Air bag injuries
  1713. Simple electric flux through tetrahedron problem
  1714. Find V rms and MM using density
  1715. Hey all, I really need help with this homework. Any help would be appreciated
  1716. Centripetal acceleration
  1717. How to calculate instantaneous acceleration?
  1718. Doppler-shifted frequency problem
  1719. Rolling motion
  1720. Object bouncing off a surface
  1721. projectile motion with acceleration and vectors
  1722. Trajectory of a missile
  1723. Heat question
  1724. Orbital Speed of Planets
  1725. Angle between two vectors
  1726. Parallel resistance
  1727. Charged capacitors in series and both ends of wire connected
  1728. Motion in a Magnetic Field
  1729. Uniform charged ball charge density problem
  1730. Three negative point charges lie along a line
  1731. Errors/Data Analysis
  1732. Matrix optics; simple lens system
  1733. Gold Leaf Electroscope
  1734. Relativistic Spaceship moving past Earth
  1735. Electric Field due to a rod (1-dimensional)
  1736. how do I use physics equations for this?
  1737. infinite cylinder
  1738. Finding spring constant k in N/m
  1739. Finding an Unknown Resistance
  1740. Electron velocity in Electric Fields
  1741. COM and Force...
  1742. A sphere problem I can't figure out
  1743. Relativistic Beaming (shooting a laser at 90 degrees from your line of motion)
  1744. Undamped Pendulum: Amplitude & Energy
  1745. Magnetic Tubular Capacitor
  1746. forces that determine velocity in running
  1747. Finding the Electric Force on a Rod by Linear Charge
  1748. traveling proton and electric field problem
  1749. A few conceptual problems with moments
  1750. Sound Defraction in a medium
  1751. Guass' Law (Conducting Cylinder)
  1752. Electric field stregth between charges
  1753. % error over many, many measurments
  1754. Why is this equation dimensionally correct?
  1755. Double Pulley Systems/Complex Pulley System Problems
  1756. Maximum Centripetal Acceleration
  1757. Relativistic Momentum problem...
  1758. Torque/statics problems
  1759. electric flux through a cube
  1760. Angular displacement is not a vector
  1761. Using Vectors to Find Displacement and Angle
  1762. energy conservation vs momentum conservation in SHM
  1763. Final velocity of a proton through parallel plates
  1764. Thermodynmics
  1765. Electron Capture and B+ decay...
  1766. An object attached to three springs
  1767. Energy principle and circular/ellipse orbits
  1768. General Atwood system with moment of inertia
  1769. Fusion in the Sun .
  1770. Charge sprayed onto a conductor
  1771. Proving Centripetal Acceleration - Lab
  1772. Number of Resistors needed for a maximum power
  1773. Power loss in copper wire
  1774. Force and Static Friction
  1775. ~ Throwing a ball: Motion in one direction ~
  1776. Two Planets Orbiting an Empty Spot
  1777. Electric field due to a nonconducting sphere
  1778. Quick uncertainty question
  1779. Calculate force from wind on kite
  1780. Vector Sum x,y and angle
  1781. Final velocity of a rock and how it compares to work
  1782. Measuring emissivity of material based on reflection
  1783. help with project - Freudenstein equation
  1784. Wave Interference concept help
  1785. Throwing a ball: Parabolic motion
  1786. Electric Fields in Equilateral Triangle
  1787. Charges on a axis
  1788. Heat question
  1789. A simple problem that will take one minute to answer (:
  1790. Question about resistors in Parallel
  1791. finding mass of object
  1792. determing charge
  1793. Finding value of g
  1794. Electric fields of particles
  1795. Find the average velocity
  1796. voltage not zero at infinity
  1797. How to determine M (Waves)
  1798. What is acceleration due to gravity of earth?
  1799. Dynamics - Newtons 2nd law.
  1800. 2D Projectile Motion problem, is there a better solution?
  1801. Refraction through slab
  1802. Rayleigh Criterion related to the eye
  1803. Difference in signs OF PHASES of -7cos(5x-3) and -cot(3x-4)?
  1804. pendulum projectile momentum question
  1805. Finding tension and acceleration in a 3 weight, 3 pulley system
  1806. Electric field strength for a radial field.
  1807. Resonator Lab Questions
  1808. Kinetic energy of a ball when falling (projectile motion)
  1809. Vertical circular motion
  1810. Quadratic Projectile
  1811. Force of Friction w/o Coefficient of Friction Given
  1812. Need help combining various equations for a single problem
  1813. Electric Field at Center of Square.
  1814. Trouble working out the GM product of Earth: u = GM.
  1815. Trying to find mass given force, distance, and time.
  1816. Tension Along Rope with Masses
  1817. 2 masses connected by a string wrapped around a massless pulley, F applied to pulley.
  1818. Boiling above and below supercritical pressure
  1819. Irradiance on half pipe
  1820. how to find energy output of a wave over the course of one hour.
  1821. Four Equidistant Particles in electric fields
  1822. Variable Acceleration - Clueless
  1823. Two hard physics problems (Projectile motion and gravitation), for me
  1824. Electric Field of a Straight Wire at a Particular Distance from Wire
  1825. Instantaneous Velocity: drag racing problem
  1826. Projectile motion
  1827. Maximum Height
  1828. Relationship Between Angular Velocity and the Spring Constant
  1829. What do I do for these problems!!?
  1830. Solar Eclipse Problem
  1831. 2D Kinematics - Projectile Motion Question
  1832. Find shortest distance from a point along a vector to a plane
  1833. Calculationg the electric field of an insulating sperical shell using integration???
  1834. Question about friction and normal force
  1835. How does the Electric Potential change when -q goes to -2q?
  1836. E field of a hemisperical shell
  1837. Contest Problems
  1838. rotational motion and moment of inertia---HELP!!!!
  1839. Find mag. of net electric field at the center
  1840. Apocentre and Eccentricity of a Comet's Orbit
  1841. Thermodynamics problem-using PV=nrt
  1842. Need help with a bit of Electricity.
  1843. A quick expectant value question
  1844. Capacitors Problem: find potential differences
  1845. Projectile motion on inclined plane
  1846. final velocity
  1847. electroscope question
  1848. Circuits-are my KVLs wrong?
  1849. Calculating vertical velocity
  1850. Window Washer plummets 47 Floors. How did he survive?
  1851. Electric field inside a slab of with constant charge density.
  1852. Conservation of momentum in an inelastic collision with friction
  1853. Photoelectric effect question
  1854. To calculate the shooting of a cannon above a wall with given heigth (looking for ang
  1855. Electric Field of a Straight Wire (now with the attachment)
  1856. ball falls in a truck loaded with sand
  1857. Projectile Motion: A boy throw a ball above a barn roof
  1858. Integrating along paths
  1859. Walking speed of a dinosaur
  1860. Finding electric potential given a cylindrical configuration
  1861. Finding the uncertainty
  1862. Power of an Ideal Refrigerator -- Carnot Engines
  1863. Second Order ODE
  1864. Decay of Electric Field between two plates
  1865. Distance of Electrons with Electrostatic Force
  1866. Forces of a Hammer Acting On a Nail With constant acceleration
  1867. Proton release inside a parallel capacitor.. Find velocity
  1868. intro projectile motion
  1869. Surface charge densities on two conducting plates.
  1870. Determine Charge with Spring between Particles
  1871. Average Solar Irradiance
  1872. Thermo cycles with only T and mol
  1873. Car Collision Problem - Halp!
  1874. Three objects on a hanging pulley system
  1875. finding the electric potential energy
  1876. Static Electricity
  1877. Paramagnetism
  1878. FBD Friction Confusion
  1879. Foucault Speed of Light Experiment
  1880. HELP WITH AP PHYSICS- 5 min drill! Multiple choice easy?
  1881. Stopping Potential
  1882. Copper sulphate resistor
  1883. Concentric Cylindrical Conducting Shells and Capacitors
  1884. Complex Number Proof.
  1885. Obtaining Thermodynamic Functions from d(pV)
  1886. Physics- Speed
  1887. Boyle's law problem.
  1888. Electric field on two charged spheres
  1889. Electric field between two large sheets
  1890. Easy electro charge question, calculation error?
  1891. Integration of Acceleration to get the height of a building
  1892. Two Colliding Cars
  1893. Astrophysics: Finding flux of a star given magnitude
  1894. Proper way to find forces
  1895. Kinematics
  1896. Weight at different heights
  1897. Puck Force Question
  1898. Electrostatic equilibrium between 3 styrofoam balls
  1899. Solving for Motion Information on a elevator and some lights
  1900. Energy supply of Fans to Air
  1901. Pulley pulling two blocks.
  1902. Car moving around a curve
  1903. Parity of wavefunction.
  1904. What is the difference between proton-electron collison adn electron capture?
  1905. why need a screen to display interference
  1906. Use Uncertainty principle to find gound state energy?
  1907. basic physics questions work and energy
  1908. Wave Equation in 1-d Proof/Verify
  1909. 2nd Law of Thermo: Specific entropy
  1910. Kinematics Train Question
  1911. Parallel plate capacitor,displacement current.
  1912. EFields of Insulating hallow sphere around conductive hallow sphere
  1913. Physics Test Question...Solution?
  1914. how to get beat frequency from graph
  1915. Projectile motion
  1916. Review problems in Mechanics I
  1917. How to calculate the ratio of weight?
  1918. Moments and couples
  1919. Newton's second law of motion questions
  1920. a man sits in a seat that is suspended from a rope... (tension & force)
  1921. Calculating Entropy of a Star using Heat Capacity
  1922. Check my "Throw the Ball" lab. (2D kinematics, force, work)
  1923. electric field
  1924. Wavefunction for even potential
  1925. Calculating error in gradient of a graph
  1926. Replace with equivalent force-couple system??
  1927. Kinematics Problem
  1928. Two-state electronic paramagnet (DPPH). Calculate total Energy
  1929. Understanding pressure in fluids
  1930. How do i determine the final position?
  1931. finding the accelration of a particle in a electric field?
  1932. Calculate the total charge on a sphere
  1933. Object Thrown Vertically Upward
  1934. Sailboat problem-- components of acceleration
  1935. Relativistic effects on an electron
  1936. Components of Acceleration
  1937. Need Help With Newton's Second Law (Net Force) Problem
  1938. Football 2D Motion: Time in Air
  1939. A basic Theory Question (Electric Field Mapping)
  1940. Projectile Motion
  1941. Found half an answer, I need help with the direction please.
  1942. Equivalent Resistance of a Ciruit
  1943. Electron and Proton Collision (relativity)
  1944. Physics Relativity Question????
  1945. Roche Limit Formula Question
  1946. Need help with Coulomb's Law
  1947. Find the change in enthalpy
  1948. Change in velocity, help please. :)
  1949. Incline Plane Help Please!
  1950. Connecting Two Charged Capacitors
  1951. Potential of Concentric Spherical Insulator and Conductor
  1952. DC Circuits - How to Determine a Bulb's Brightness
  1953. Dynamics A Level Questions
  1954. Computing for magnetic force. Please check my answer.
  1955. Conceptual Question - Newton's Second Law
  1956. Rotation : When will the rod slide off?
  1957. A question on projectile motion
  1958. A difficult projectile problem
  1959. Dynamics A Level Questions
  1960. Classical - Toboggan on slope
  1961. Pressure and Temperature -- Quick Concept Check
  1962. Point charge Exam review question
  1963. Momentum and Newton's Gravitation force question (2 stars)
  1964. Angular Velocity
  1965. solve speed with the help of f (x) to f ' (x)
  1966. Relation of Energy Fluxes of Two Objects
  1967. Thermodynamics - Irreversible Adiabatic expansion
  1968. pendulum bob on a string
  1969. Electric Field due to Solid Non-Conducting Cylinder
  1970. Density change due to thermal linear expansion
  1971. Anyone can give me ideas of how to find resistance of a liquid
  1972. Work/Energy problem at an angle
  1973. hot air balloon
  1974. Metal ball charged with electron orbiting
  1975. Find a reference frame where momenta of electron and proton are equal
  1976. Momentum hw problem, steel ball dropped from h
  1977. find time dependent torque needed to turn a wire loop in a uniform B field
  1978. Displacement and Momentum, particle in cathode ray tube with variables
  1979. Taylor series expansion for gravitational force
  1980. The Electric Force
  1981. Speed at which two charges collide
  1982. finding current in a parralle wire
  1983. Help with a physics sound problem.
  1984. Motion in 2-dim, vectors
  1985. Moments Problem Regarding Sign Convention?
  1986. Friction and curves
  1987. Electric Potential two metal balls find final velocities
  1988. bullet hits the ground on its return
  1989. Physics Relativity Question?????
  1990. Simple harmonic motion problem.
  1991. How do I find the height at which a ball is released in a friction-les loop question?
  1992. Potential Difference from Given Efield
  1993. Landing a 747 with only friction
  1994. Can't Analyse a Spring Problem
  1995. Solar energy equation
  1996. Angular velovity (flywheel)
  1997. How to calculate time for ticker tape to move from a point to another point?
  1998. Calculating G: Simple Pendulum Experiment, problems?
  1999. A projectile problem
  2000. Projectiles
  2001. Velocity-time graph issue
  2002. What is "linear acceleration" in uniform circular motion?
  2003. U-decay chain + diffusion
  2004. Energy Fluxes of Two Objects
  2005. Help with average velocity during a time interval
  2006. Bolometric magnitude
  2007. Cutting edge introductory info re: field emission microscopy and imaging methods
  2008. a problem in magnetics.........
  2009. Help with Combining Oblique Vectors
  2010. Circular Motion Speed
  2011. Gravitation with conversions help!
  2012. Work of Friction Done Opposing Force at an Angle
  2013. How do you find the diameter of a wire
  2014. Capacitors in series
  2015. Tension in the string
  2016. resistance-current characteristic in the case of filament lamp (investigation)
  2017. Finding an electric field vector....
  2018. Long Jump
  2019. resistance-current characteristic
  2020. What is the speed of the pitch?
  2021. 'Rocket equation'(Physics by example, Rees, pr. 16)
  2022. Finding the power of an elevator motor
  2023. Dipoles angular velocity when aligned with electric field?
  2024. Change guitar string tension
  2025. Acceleration of a car pulled by a block falling (pulley)
  2026. Capacitor network finding potential
  2027. Conceptual Spring SHO problem
  2028. Uniform Circular Motion Free Body Diagrams
  2029. Relative velocity
  2030. Focal Points of a Thick lens
  2031. Area of ring = Circumference*dr
  2032. Conservation of momentum and energy problem (Please check if my setup is right)
  2033. Challenging Momentum of Collision Problem
  2034. wow, tried helping a friend with a vector problem and I can't get it!
  2035. Mass connected to two springs
  2036. Parabolic Projectile Motion problem.
  2037. Relativistic Rocket: Finding the change in velocities in different reference frames
  2038. Trouble with basic Vector Addition Problem
  2039. Inverted pendulum attached to cart, cart on frictionless surface & axes
  2040. What is the math behind 'Inverted cup of water experiment'?
  2041. Does the colour of light change with a change in medium
  2042. Potential and field at two electric plates
  2043. How do I solve this problem? Finding the resultant vector
  2044. Lens maker's equation used correctly?
  2045. Energy and Capacitors
  2046. Find velocity given distance in one reference frame and time in another (relativity)
  2047. Bead on a Spinning Hoop
  2048. Electron displacement between two parallel plates
  2049. Transient heat conduction in a slab
  2050. Frictional force on stacked objects
  2051. Forces and Graphs
  2052. Capacitor Voltage
  2053. Finding Potential Energy
  2054. Given potential difference of X-ray machine find energy of X rays
  2055. Distance spring decompresses when friction is involved
  2056. Why does (dr/dt)*θ = 0 when deriving Velocity?
  2057. Question on Kirchoff's Laws
  2058. Electric Potaential of two spheres
  2059. capacitors with dielectrcis
  2060. Vector force problem, stumped.
  2061. Projectile motion help
  2062. Help me understand μ!
  2063. Finding the net field strength due to a line of charge
  2064. Hydrogen to Helium Reactor, how much hydrogen to power earth?
  2065. So simple, what am I missing??
  2066. Special Relativity Question?
  2067. Parallel Plate Capacitor - Finding E field between plates
  2068. Acceleration of a Bucket and Tension Forces
  2069. How long will a battery last?
  2070. Projectile motion equation help!
  2071. Finding velocity function from a model of force
  2072. What am I doing wrong in this basic Projectile Motion Problem??
  2073. Work done by pulling block over surface.
  2074. A grandfather pulls his granddaughter, whose mass is 20.5 kg
  2075. Simple Capacitance Question.
  2076. Finding height of flower pot dropper above you
  2077. double slit
  2078. Magnitude of Force
  2079. Classical Mechanics Problem
  2080. Circular Motion Problem: An Adventure inside Spinning Cylinders
  2081. Projectile Motion problem with Plane dropping package
  2082. Engineering electromagnetics field theory
  2083. Thin rod nonuniform linear mass density
  2084. Electric field due to a FINITE cylinder of charge - Tricky binomial expansion
  2085. Center of Buoyancy
  2086. When to use Gauss's Law?
  2087. Bohr's model of hydrogen like atoms question.
  2088. Modified Atwood Machine
  2089. Classical Mechanics Acceleration under force F=-K/x^2
  2090. quantum mechanics uncertainty principle
  2091. Refraction; beam width
  2092. Special relativity with particles
  2093. Am I wrong or the teacher?
  2094. Physics Energy Problem Help
  2095. velocity and position as functions of time
  2096. Centripetal Acceleration with distance
  2097. Magnitude of gravitational acceleration at distance r
  2098. Series and Parallel
  2099. Electric Field and Potential
  2100. Electric Potential and Equipotential Contour
  2101. Electric Fields and Final Velocity of point particle question? Electric Fields and F
  2102. Coulombic Force on Q from two particles
  2103. Trouble understanding the answer
  2104. Normal Force Definition
  2105. Electric Potential Energy: Work Required to Move 3 Charges Out to Infinity
  2106. what is the amplitude of sinusoidal motion?
  2107. Electrical Capacitator and Electrical Field question. Please help!
  2108. Temperature of a star via its flux
  2109. How to calculate theoretical initial velocity?
  2110. Dielectrics help
  2111. a steel rod and an iron rod is placed inside an ac current soleoid
  2112. Pith balls problem
  2113. Focusing an outside view (light) down a tube then expanding it
  2114. Ionization of surrounding air due to metal sphere
  2115. Charge distributed over a spherical surface [concept question]
  2116. wavelengths / film / reflected light
  2117. Finding the electric flux through a sphere...
  2118. expansion of a gas
  2119. Decay of a muon-probability of decay
  2120. Fluids and Density
  2121. General Physics (I) Kinetic energy and momentum
  2122. Work done by a spring
  2123. pure silicon mystery!
  2124. For what frequency does the intensity have a minimum?
  2125. Gravity Question (I think) with mass and speed
  2126. acceleration of gravity conflicts with F=MA, why?
  2127. Damped and Forced Harmonic Motion
  2128. compressing water vapour
  2129. Homework help (Force of friction)
  2130. Parallel plate air capacitor
  2131. Why does the centripetal force subtract from total force toward center?
  2132. Vertical motion under gravity - SUVAT equations.
  2133. Understanding the buoyant force in archimedes principle
  2134. Relative velocity question...
  2135. Electrostatic force question
  2136. Direction of electric force
  2137. Given tension and acceleration determine max weight
  2138. Integrating to find the electric field
  2139. Can anyone PLEASE tell me how a current balance works?
  2140. Level 3 Forces Problem - Coefficient of Static Friction
  2141. Electric Forces in a Triangle (math check?)
  2142. Please explain this Kinematic Problem.
  2143. Electric Field Mapping Lab
  2144. Magnitude of a charge
  2145. Newtons First Law Question
  2146. Fundamental Frequency
  2147. Electric Field/ infinite charged sheet
  2148. tension and length
  2149. Doppler Effect of Sound
  2150. Diffraction problem about calculating the image on the screen
  2151. Feynman Lectures on Physics - Rotation in 2 dimensions
  2152. How could I find the rate of heat absorption?
  2153. Phase-Space of a bouncing ball
  2154. I have a quiz -_-
  2155. Understanding how to solve this set
  2156. MCAT collision problem: conservation of momentum/kinetic energy. Please help!
  2157. How do I find intial acceleration?
  2158. Fields in Physics assignment question about electron beams in a cathoe ray tube
  2159. force exerted by water on a tube
  2160. equivalent resistance of tricky circuits???
  2161. Bowling ball rolling, going up a ramp, and continues rolling.
  2162. Voltage and direction
  2163. Calculating potential on surface of sphere
  2164. Kinematics with 2 objects
  2165. Find the resistance of the coil
  2166. Magnetic fields and the right hand grip rule
  2167. How to calculate vector angles and magnitude
  2168. Finding the velocities of these segments?
  2169. Specific heat capacity problem
  2170. Easy uncertainty question, I need HELP
  2171. two masses m1=5 kg and m2=9 kg are connected by a string which passes over
  2172. Electric potential question
  2173. Lever problem
  2174. Electric Potential and a Conductor
  2175. newton's second and third laws
  2176. Joining two wires, magnetic fields and a little algebra
  2177. The coefficient of friction at a specific angle.
  2178. Conceptual: bug masses on a rotating wheel
  2179. Find ratio of two charges
  2180. Root Mean Square Uncertainty
  2181. Tension of ropes when laying on a hammock
  2182. Mag
  2183. Projectile Motion - find initial velocity, flight time and max height
  2184. Magnetic dipole moment
  2185. Block in a verticle circle with friction
  2186. Capacitor, circuits and how much charge is transferred
  2187. Help understanding RC circuits
  2188. Physics 2d kinematics, projectile motion
  2189. resistor network question.. Cant get it
  2190. Circuit with Capacitors
  2191. Work of kinetic friction on block in vertical circle
  2192. Paralell Plate Capacitors and Dielectric
  2193. Charge in circuit, capacitor - explaining current
  2194. homework help
  2195. Physics Homework Help!!! Please!!
  2196. Help with Physics 11 Kinematics.
  2197. Find y-component of Electric Field!
  2198. What happens when 2 electrons collide?
  2199. Homework Question on resistors in series, in parallel
  2200. AP Physics Electric Field Homework Problem
  2201. Advanced physics problems on electric fields.
  2202. Thermodynamic with inelastic collision
  2203. Missed my class and don't know how to even begin.
  2204. Derivation of electric field for a dipole.
  2205. How to calculate velocity with target 12 m away vertically and 6 m horizontally?
  2206. Estimate the relationship between the maximum and minimum intensity
  2207. Three light bulbs in parallel circuit and Currents
  2208. uniform acceleration question
  2209. Can we define force if ......
  2210. Potential energy of a spring and transverse motion
  2211. RC Circuit with two resistors
  2212. Rotation of a rod
  2213. Force Formula - Question
  2214. Cmb
  2215. Simple Vector Addition
  2216. quasistatic compression
  2217. electrostatics
  2218. Physics - Edexcel unit 4
  2219. Fluid Dynamics
  2220. The Doppler Effect
  2221. Charged Ballon
  2222. Electric potential energy finding velocities
  2223. Circuit with Resistors and a Battery
  2224. tension in a sonometer
  2225. Archimedes principle
  2226. wrong analysis in projectile problem
  2227. car going around banked curve with no friction
  2228. My Physics homework regarding energy/velocity?
  2229. Questions about work.
  2230. Enthalpy change - Using tables to find specific heat
  2231. Electric field and tension
  2232. Linear Combination of Wavefunctions
  2233. Darts Statistical Lab with average, SDM, and probability
  2234. Angular Momentum (pendulum) Help
  2235. finding initial velocity when given only mass and distance
  2236. Two Speakers Question
  2237. Calculate Emf in a magnetic field
  2238. Finding volume charge density of nonconducting spherical shell
  2239. probability of finding the particle
  2240. Find current flowing through the wire
  2241. Work and Energy on a curved track with friction
  2242. Where to find AP Physics C: Mechanics material???
  2243. Circular motion
  2244. Kinematics: Rocket/Free Fall Problem
  2245. Total Charge on the Cylinder (Gauss' Law)
  2246. Equation to find the Initial Velocity of a Projectile fired from above ground level.
  2247. Newton's Third Law Problems
  2248. Proving Ohm's Law between 2 circuits
  2249. special relativity
  2250. Expression for Electric Field Outside Sphere
  2251. Current in 10 ohm Resistor
  2252. electric field of two point charges
  2253. Find the radius
  2254. Find the radius
  2255. Pendulum and kinetic energy
  2256. Find the difference in voltage at different points in a circuit.
  2257. Gauss's Law Question
  2258. Circuit 1 with Resistors and Battery
  2259. acceleration: How do I know to use one time and not the other?
  2260. Resistors in Series, in Parallel
  2261. HELPPPP! working with mass and velocity
  2262. Projectile Motion / Kinematics Lab (Only 2 Variables Given)
  2263. Curent densitys relation to drift velocity
  2264. What is the speed of the toolbox?
  2265. Kinetic Energy/work finding the distance
  2266. Circuit with 2 Batteries and 6 Resistors
  2267. Thermodynamics with styrofoam cooler
  2268. Determination of Earths radius with known latitude and sun travel times
  2269. Quick Gauss' Law Answer Check
  2270. Thermal expansion: Plastic Molding
  2271. Ohm's law and i = v/r
  2272. Electric Charge Questions, Please help!!!
  2273. Hooke's Law Problem Set with Word Problems
  2274. Elliptical orbits question
  2275. Newtons Law of Cooling - Determine rate of cooling
  2276. Rotation : Unolling carpet.
  2277. Find the tensions t1 and t2.
  2278. Velocity and acceleration problem
  2279. Gravity, velocity time and distance problem
  2280. Oblique Impact of Smooth Spheres
  2281. How to find the same angle in different orientations?
  2282. Velocity question
  2283. Intensity Level of 76 trombones
  2284. Work=Kinetic Energy formulas
  2285. Electrostatics and Coulomb's law
  2286. Need help to find intensity of waves.
  2287. Force of friction help
  2288. Ramp: Forces and Motion Investigation Lab
  2289. Coloumbs Law & Charges. Please help! :(
  2290. Finding Expressions for Electric Fields with Radius
  2291. Energy Required To Knock Something Over
  2292. Vectors with an airplane and blowing wind; Also another w/ no idea how to describe
  2293. Maximum charge
  2294. The electric field of a ring
  2295. The Tiny Vibrating Source
  2296. Elastic energy, spring equation. Help?
  2297. Calculating Time, Where Did I Go Wrong?
  2298. Non Ideal Battery
  2299. Question Relating Electric Field and Capacitance
  2300. Thins Lens Problem
  2301. electric field of an annulus
  2302. Friction at constant velocity
  2303. Ohmic Devices and Conceptual Circuit Question
  2304. Simple(?) Speed bump and centripetal force problem
  2305. running after a bus. acceleration problem
  2306. (Kinematics) Choose the correct statements :
  2307. Speed of projectile launched propelled by air pressure
  2308. Does uniform motion always have uniform velocity?
  2309. Mean = Most Probable Value - Statistical Mechanics
  2310. mechanics, energy, acceleration.
  2311. Relativity problem
  2312. Magnetic field and formulating an equation for a particle
  2313. Electrostatics -Electric Field and Potential
  2314. gravitational force between the Earth and the Sun
  2315. How to solve SUVAT problem without using relative velocity
  2316. Show that the following force is conservative
  2317. A particle is moving along the x-axis subject to the potential energy function
  2318. gaussian solid sphere Q
  2319. charge density higher on sharp ends
  2320. Free fall w/ Air Resistance
  2321. Lamp Hanging in an Elevator
  2322. Ideal fluid problem
  2323. Energy question
  2324. Lorentz Law field equation applied in a field
  2325. Separation of two Isotopes
  2326. Instantaneous Velocity from the graph
  2327. Boiling water at altitude
  2328. Basic Relativity Question
  2329. Polarization of a Ideal Fermi Gas
  2330. What is the internal resistance of the power supply
  2331. braking distance of a car(forces and friction)
  2332. Calculating Photon Energy given Luminosity
  2333. Resitivity of a wire
  2334. Work Energy Theorem Problem
  2335. Torque, mass has to be found with centripetal force
  2336. Force (potential, I think) to Kinetic Energy - Two charges
  2337. Free Fall(gravity) with speed of sound in air
  2338. Velocity of a ball (kg) droped from height (m)
  2339. Paint Sprayer Constriction
  2340. Principle of Work and Energy
  2341. Physical Science question
  2342. Principle of Work and Energy: Spring and Mass
  2343. Calculating Net Electric Field
  2344. Torque Equilibrium and Elasticity problem..
  2345. Change in Density due to Temperature and Pressure Change
  2346. Physics Special Relativity Time Dilation Question?????
  2347. Negative angle projectiles
  2348. If an object is moving in a straight line and it has uniform motion...
  2349. electric field by a current carrying wire
  2350. Banked curves, coefficient of friction problem!
  2351. 1998 Physics B
  2352. Dimensional analysis
  2353. Gravitational Force Due to Infinitely Long Rod
  2354. AP Physics Homework Problem
  2355. Elastic collision.
  2356. Component acceleration in free-body diagram
  2357. How is this supposed to be read?
  2358. Special Relativity Angles
  2359. Find velocity at a specific time?
  2360. Need Help on Energy Homework! Please!
  2361. Optics
  2362. Concentric Cylinder Viscometer
  2363. Newtons 2nd law problem - how to interpret the break force
  2364. Vector problem
  2365. center of mass ?
  2366. Direction of frictional force
  2367. Friction problem
  2368. Maxiumum speed of a cork on a wave
  2369. Problem?
  2370. Why is Frequency maintained, and is the answer true for both types of wave
  2371. Specific heat/thermal capacity
  2372. Finding the position vector of uniform circular motion
  2373. Statics of rigib bodies
  2374. Calculating velocity, time, and Instantaneous speed using kinematic equations
  2375. Physics 2 exam review question
  2376. The rotation of the Earth affects the apparent gravitational acceleration at differ
  2377. voltage question
  2378. Network Theory Problem do help !
  2379. Charge Problem--True/False
  2380. Kater's Pendulum Experiment
  2381. SHM: Which is amplitude and which is displacement?
  2382. Coefficient of Friction & Restitution
  2383. Trapeze artists
  2384. How does a radar gun determine velocity?
  2385. Electric Field and Potential
  2386. Need a check on a elevator going up problem
  2387. Pipes and resonance
  2388. Electric Field of a quarter circle segment
  2389. Friction problem 2
  2390. help with isotherms and adiabatic curves
  2391. photon-photon collision - electron-anti electron pair creation
  2392. Work of gravitational attraction based on height
  2393. Science Fair - Why perpertual motion won't work.
  2394. Positronium Decay
  2395. Need help with discrete math!
  2396. This confuses me.
  2397. Solving for power in circuits
  2398. Couple MCAT questions
  2399. Help with two quick electric potential and voltage problesm
  2400. Friction in vertical directions
  2401. How to find Knudsen Number from T, P, and rho
  2402. Length Contraction Problem
  2403. Newton's laws with buckets and strings
  2404. Bullet Stopping in Wood
  2405. Electric field and potential of 2 point charges
  2406. Friction problem 3
  2407. i'm prepairing for university entrance examination and need help
  2408. What is cos and sin?
  2409. Snell's Law problem
  2410. Ramp: Force and Motion Formula
  2411. Normal Force Addition
  2412. Building an X-ray Telescope
  2413. Calculate the Net Force Acting on the Object.
  2414. Kinetic energy dissipation by friction
  2415. Virtual images in convex lens
  2416. Integration Newtons Second Law
  2417. why electric potential of arc treated like point charge
  2418. How much mechanical energy is lost to friction if a 58.1-kg skier slides down a ski s
  2419. Motion in a Magnetic Field
  2420. Instantaneous velocity from avg velocity with constant accelartion
  2421. I don't understand Gauss' law
  2422. Magnetic Field required to seprate to ions
  2423. Gauss' Law for nonconducting sphere
  2424. Electric Potential Energy Question
  2425. Buoyant force problem
  2426. Vector diplacement
  2427. Find vertical deflection
  2428. Energy to matter conversion.
  2429. Electric Fields
  2430. Satellite Collision
  2431. a box slides on top of a cart as a force is applied to the cart
  2432. Physics
  2433. Experimental methodology
  2434. Complex Numbers added as impedances in parallel
  2435. Describing the motion of a graph.
  2436. Trying to find the appropriate motor for a sliding door
  2437. Equilibrium under parallel forces
  2438. Finding theta on an incline plane
  2439. Ideal Gas Law
  2440. Give a symbolic expression for submerging a metal in water
  2441. Simple Harmonic Motion conceptual question
  2442. Velocity change by running engine for 1 year
  2443. Elastic 2D Collision with Lots of Unknowns
  2444. Finding the minimum speed of a proton traveling between two parallel plates.
  2445. thermo question (enthalpy and entropy)
  2446. Electric Field on Central Axis
  2447. Hose filling up a bucket
  2448. Spherical conductors connected by a wire.
  2449. Help with Physics - Object submerged, displacement, density, pressure?
  2450. Combination of Capacitors
  2451. Resultant forces of coplanar systems
  2452. Calculating Work
  2453. thermal conceputal questions
  2454. what is the mass of saturn?
  2455. Simple Harmonic Motion with Impulse
  2456. What is the magnitude of the dipole's electric field at point P?
  2457. 2 Loop RC circuit
  2458. Capacitor Problem involving a slab of Copper between a Capacitor
  2459. Object falls down frictionless chute and hits surface with coefficient of friction
  2460. Gauss law
  2461. acceleration (of an orange, 2 possible answers)
  2462. Finding Relationship Information from Graph (direct proportionality)
  2463. find how much a wire stretched at the bottom of swing of pendulum
  2464. Net force on a particle with potential energy function
  2465. Concept: Air Resistance in Projectile Motion
  2466. To double the power dissipated by a resistor you can...
  2467. Point slope equation and velocity
  2468. Why can't we use cons of energy in this problem? (conceptual)
  2469. Deriving equation for electric potential along yaxis for a linear electric quadrupole
  2470. Gravitational Force Problem
  2471. Dark matter density calculation
  2472. Simple question about motion of electrons
  2473. block on inclined plane with pulleys and friction
  2474. current from stream of particles
  2475. Question about displacement
  2476. Force and Constant Acceleration Problem
  2477. At what phase is the heat capacity the greatest?
  2478. At what point on the x-axis is the Electric Potential zero?
  2479. Total work done on clay during Spring Compression
  2480. Force
  2481. Pulley system, find the mass
  2482. Double-slit Interference
  2483. Ladder leaning against a wall
  2484. Forces
  2485. Forces due to Tension
  2486. What charge must a spherical raindrop of diameter 1.0 mm carry if it remains suspend
  2487. Biconcave and double concave
  2488. Interrelation between energy and momentum
  2489. Vine breaks during tarzan's swing at what angle?
  2490. Vibrating Platform and Rock
  2491. Work and change in voltage
  2492. EM Plane Wave + Faradays Law
  2493. Spring Constant and Time Period
  2494. Lever formula help
  2495. Motion in a Magnetic Field
  2496. 2 Loop RC circuit
  2497. Calculating acceleration using Experimental equation
  2498. Thermodynamics: Concentric Spherical Shells with Point Source Radiation
  2499. What is the time taken for a flag pole to fall over and hit the ground?
  2500. A force acts on a particle based on position, determine work. Sign question.
  2501. Confused about Power Source diagram
  2502. Electric field from very long wire
  2503. Thermodynamics-why is this constant pressure?
  2504. Conservation of energy ???
  2505. Thermal Physics Problem
  2506. Fluid mechanics calculating force needed to lift submerged disc
  2507. Multiple capacitor RC circuit
  2508. Frictional force, velocity, and acceleration
  2509. Revolutions frequency after collision
  2510. Electric Field of a Thin Rod
  2511. DFT symmetry property?
  2512. Sketching Kinmatic Graphs
  2513. Forces and acceleration - two masses instead of one
  2514. More Forces with some trig; I don't know where the mistake is
  2515. Velocity-Vs Time Graphs -- 2nd problem
  2516. Yet Another Egg Drop...
  2517. Max distance of rectangle that electron beam can pass through
  2518. 3 boxcars moving along frictionless track hits a motionless boxcar
  2519. What is deviation(optics)?
  2520. Nuclear Reaction Problem - i don't understand the solution
  2521. Time Period of SHM
  2522. Average Speed Computation
  2523. Work calculation for isothermal compression
  2524. Electrostatics: Creating Charged Objects
  2525. Gauss's Law -- Insulating Material
  2526. Motion of particle in an electric field
  2527. Will sound be affected by gravity in this simple problem?
  2528. Two boxes sliding down a 20° ramp.
  2529. Applied force increase/decrease kinetic energy
  2530. Addition of 2-D vectors and relative velocity
  2531. Force of a parachute on parachutist
  2532. What is electrical equivalent?
  2533. Conservative and non-conservative systems
  2534. Relationship betwen SHM frequency and harmonic oscillator freq.
  2535. electromagnetic induction
  2536. Magnetic Field at center of circle on rectangular circuit
  2537. Three approaches to magnitude of average velocity
  2538. Discharging capacitor, the differential equation
  2539. stable equilibium of a potential
  2540. I cant figure out what the potential difference between this two points is.
  2541. Waves in water...
  2542. Capacitors
  2543. Tension of a massed String
  2544. Mass sliding down surface of a sphere
  2545. Pressure in Tube, Bulk Modulus
  2546. Angular Velocity/Motion Question
  2547. Conservation of Energy/Motion Question
  2548. Advanced Forces Question, Air Resistance and Friction.
  2549. Rate of Field Change for Induced Current of Loop
  2550. Balance of the cylinder on the rod
  2551. Motion, Power, Energy Questions
  2552. Electric potential question (check my work)
  2553. 2 dimensional elastic collisions
  2554. Kinetic Energy Ratio/Rotational Equilibrium
  2555. Spring toy(Kinematics) check my solution(s)
  2556. bicycle tire easy exercise
  2557. Solid cylinder with nonuniform volume charge density?
  2558. calculate acceleration of gravity using chi-square
  2559. Kinetic energy and momentum (Conceptual Question)
  2560. Simple Projectile Motion Problem
  2561. half life of He-6
  2562. Inelastic Collision and Rotational Inertia
  2563. Horizontal projectile, NOT GIVEN INITIAL VELOCITY
  2564. Quick questions about ideal gases
  2565. Optics - Several lenses
  2566. (UCM) Maximum Rev. Per Minute Using Length and Acceleration
  2567. I need help with conversions
  2568. Speed of Clock
  2569. Determine speed of bar and average frictional force
  2570. Buoyancy and Spring force problem.
  2571. Work-Energy problem involving pulley
  2572. Field due to a Current
  2573. How to calculate position and velocity?
  2574. How does one predict the stretch of (two, attached) springs in a bungee situation?
  2575. Magnitude of an electric field at two points
  2576. Thermodynamics-how to tell if a gas is an ideal gas?
  2577. Determining Acceleration Using Kinetic and Static Frictional Force Coefficients
  2578. Voltage Drop over Constant Current Circuit
  2579. magnitude of e field
  2580. Basic Misconception tension in rope and vectors
  2581. forces, vectors and acceleration
  2582. Young s Modulus Numerical
  2583. Why Capacitors Store Half The Charge They Are Given
  2584. Inductance Of A Solenoid Problem!
  2585. Work energy theorem question
  2586. Balance of a car on an inclined plane
  2587. Calculating Percent of Kinetic Energy Lost
  2588. Finding the period T for cylinder on spring
  2589. Find the minimum separation between 2 pucks
  2590. Geometric optics question.
  2591. normal force
  2592. vector addition
  2593. Radioactvity - Specimen CCEA papers
  2594. Surface Charge Density of a Neutral Conducting Cube
  2595. Impulse for a car when it drives in a circle
  2596. Center of Mass/Moment of Inertia Question
  2597. I must be wrong, instantaneous speed-Conceptual ?
  2598. I need help with conversions
  2599. Tension on a Cable
  2600. Optics in Physics
  2601. Three Forces
  2602. Eastward Velocity, But A Westward Acceleration?
  2603. Wave on a string... general theory
  2604. Two boxes connected by strings at an angle
  2605. spring and block system
  2606. Three Infinite Straight Wires
  2607. Minimum Minimum Power of a Heat Engine to freeze 50kg water in one hour
  2608. Position and acceleration vector -- parallel and perpendicular
  2609. Box on a sphere is nudged-- when does it fall off?
  2610. Velocity/d=rt
  2611. Just a small question.
  2612. Newtons Law - backward motion
  2613. What happens to an accelerated liquid
  2614. How do you solve for time
  2615. Determine the time required for a missile to reach its maximum altitude of 21 km
  2616. Is work done by friction the same as thermal energy?
  2617. time it takes for a rocket to reach maximum acceleration
  2618. Current induced in a loop of wire by a bar magnet (Conceptual)
  2619. General Relativity Concepts
  2620. How do you find time given vi, acceleration, and displacement
  2621. Vector Expression problem
  2622. Conservation of energy
  2623. Help With Physics Terms
  2624. tough doppler effect problems help please!
  2625. Impulse on a rod.
  2626. Eletrostatics
  2627. change of flux in an L-R circuit
  2628. Uncertainty Principle (different formulas)
  2629. Magnitude of electric field in an area of changing magnetic field
  2630. torque in a charged ring outside a magnetic field
  2631. Conservation Of Momentum
  2632. What kind of force?
  2633. Average Velocity vs Average Velocity discrepencies?
  2634. Mechanics - moment, Euler's second law
  2635. Find power in resistors
  2636. Find current in Resistor 2
  2637. Elastic collision in 2 dimensions
  2638. Capacitors - a paradox?
  2639. Physics on Coefficient of Friction
  2640. Centripetal force with Conservation of Mass
  2641. A Fraunhofer diffraction pattern is produce on a screen ...
  2642. The lines in a grating are uniformly spaced at...
  2643. deceleration of a falling load of a rope
  2644. Charging of Capacitors
  2645. non-constant acceleration
  2646. equopotential help
  2647. A 1200-kg car is traveling at 10 m/s on a road such that the maximum frictional force
  2648. Coefficient of Kinetic Friction from M, Angle, Accel.
  2649. Physics Relativity/Power Question??
  2650. Conceptual - Loop of Current
  2651. Capacitor and charge question
  2652. What is required to just barely avoid a collision.
  2653. vectors angle: arctan(4/0) = error?
  2654. how to graph acceleration vectors on position axis?
  2655. Resistance and Heating Effect
  2656. Net Force Question?
  2657. Prove the Shell Theorem
  2658. Unknown mass being pushed up ramp until it hits spring
  2659. Question about equations
  2660. Thermal Conductivity
  2661. Question about solving for Fk with work
  2662. Circular Motion problem
  2663. Application of the cross product: max height of z?
  2664. Change in potential energy across wires differing composition
  2665. Finding the Potential (Kirchoff's Law)
  2666. Capacitors connected in parallel to store a charge of 1.49 C?
  2667. Finding the force of a magnetic field using an air core solenoid
  2668. How to find total force?
  2669. How to find velocity of a bullet given energy?
  2670. Air friction help
  2671. Velocity and acceleration
  2672. Magnitude of object with constant speed
  2673. Magnetic field strength problem
  2674. Hook law
  2675. Projectile Problem
  2676. Calculating Forces on a Domestic Wind Turbine During Extension/Retraction
  2677. Simple Harmonic Question
  2678. Thermal conductivity conceptual
  2679. Fictious force: Cylinder on an Accelerating Plank
  2680. Mass Spectrometer Formula question
  2681. E field
  2682. what's quasi adiabatic? thermodynamics
  2683. Linear Motion: calculating height of cliff given speed of sound and time
  2684. What is a function that describes motion in a circular path?
  2685. Diode paralell with a resistor problem.
  2686. Problem with acceleration and distance!
  2687. Please check my answers - basic physics homework
  2688. description of Electron spin
  2689. Stiffness of a single interatomic "spring"?
  2690. Can Someone Solve this Challenging Physics Riddle ?
  2691. Need help with determining acceleration when given a distance
  2692. Help on conversion of units (density)
  2693. Radioactive Decay
  2694. Polarity of induced voltage
  2695. Drawing the Forces for this Structure?
  2696. Surface SHM
  2697. Energy of an electron in a betatron
  2698. POWER: is it possible to have the same answer?
  2699. Is there something wrong with this wave concept?
  2700. Parallel plate capacitor
  2701. Resultant force and angles please help.
  2702. The angles between vectors?
  2703. Electrical field strength problem
  2704. Single-slit diffraction
  2705. What is your method of knowing when to use sine and cosine in force problems?
  2706. Problem with variable capacitor and changing angles
  2707. Tension on a string while an elevator is moving
  2708. Tension w/ rope hanging from a ceiling
  2709. Circular motion experiment
  2710. Vector addition and magnitude
  2711. How much energy must a 6.0 V battery expend to fully charge a ccapacitor
  2712. semiconductors
  2713. Movement of Water - Increasing day length
  2714. measuring volatge across capacitor with a not ideal oscilloscope
  2715. Solve sinxcosx=0.458
  2716. Kinetic friction and inclined planes
  2717. Quick Question regarding Air Resistance
  2718. Diffraction patterns and lasers!
  2719. I need someone to explain this vector question's answer
  2720. Derivation of formula for orbital ranges in hydrogen atom
  2721. Param. Lines and Planes
  2722. What's the difference between Area Density and Linear Density?
  2723. Proton Velocity (potential/field/charge)
  2724. Find the Electric Field at a midway point
  2725. Charge applied to cylinders
  2726. Average induced emf in coil with turns
  2727. Momentum, Friction, and Velocity, OH MY!
  2728. Extremely frustrated - inclined plane problem w/ friction
  2729. Parallel/Perpendicular to the slope
  2730. Relationship of particle charge to speed?
  2731. static friction on banked curve
  2732. Basic Trig Identity question
  2733. Need help on direction of acceleration
  2734. Finite square well potential question
  2735. Circular Magnetic Field and direction problem
  2736. Finding equation for potential between concentric charged spheres
  2737. I don't understand how to calculate leg3 for x3?!?!!?!?
  2738. MATLAB problem with Kapitsa pendulum(mostly about second order differentiation)
  2739. Formula for the Length of the pipe.
  2740. One chain-link pulls another
  2741. Probability current inside the barrier of a finitie square potential well
  2742. chaining pressure vessels and outlet temperature
  2743. Building the Paper Tower
  2744. relativity mass
  2745. Heat Transfer Question
  2746. Half-life exercise, radioactive/non-radioactive ratio
  2747. Forces - Problem
  2748. Uncertainties for Stress
  2749. Theory behind Doppler effect...
  2750. Ship and Iceberg - Speed of sound question
  2751. Magnitude of force between blocks
  2752. finding largest angle - mechanics
  2753. Work done by damping, harmonic oscillator, help?
  2754. Thermodynamics - Please help me to calculate the final gas pressure.
  2755. Calculating the potential energy of a uniformly charged sphere
  2756. determine the smallest coefficient of friction
  2757. Understanding forces
  2758. mechanics question..please help!!
  2759. Electric Potential of grounded hollow metal sphere
  2760. Mechanics - work done conservation of energy *Help needed*
  2761. Rotation in a Vertical Plane - tension on a bucket
  2762. Rotating magnetic flux.
  2763. Magnetic Field due to 2 Currents
  2764. Transformer - Voltage at taps
  2765. Help with friction! Not sure where to start
  2766. Vectors and resultant vectors?
  2767. what does it mean "variable Direct Current"?
  2768. Conservation of Elastic and Gravitational Energy
  2769. Finding the work done to remove a dielectric slab.
  2770. Current out of the battery, capacitor
  2771. Simple Circuits (p=i^2r , v=ir, etc.)
  2772. rock climber force diagram and acceleration
  2773. Constant Acceleration Problem Involving Two Different Objects
  2774. Spring Constant when compressed
  2775. Friction between boxes - please check if this is right
  2776. Coefficient of Friction between slide/girl
  2777. Magnetic Field, potential difference and speed
  2778. Electrostatic problems help
  2779. Resultant force help!
  2780. Magnetic Field and Force (in a solenoid)
  2781. Biot-Savart Law
  2782. Difference between power formulas!
  2783. Elliptical Orbit
  2784. Showing different physics quantities of a drum pad
  2785. Help with distance between cities?
  2786. Thermodynamics phase changes steam and water
  2787. Electric force acting on an electron
  2788. newton measures the speed of gravity
  2789. Velocity of electron shot from a solenoid.
  2790. Series and parallel circuit with multiple resistors??
  2791. Maximum Static Force before Blocks Slip
  2792. Torque and Static Equilibrium
  2793. Skew Lines Conceptual Problem
  2794. Magnetic Field
  2795. given height acceleration
  2796. Kinetic Energy loss in a completely inelastic collision
  2797. Nonconservative Force
  2798. Item with Uniform Velocity intersects with Item with Uniform Acceleration
  2799. The Energy of a Multiparticle System
  2800. Momentum when object is thrown at angle
  2801. Spherical Aberration of Lens
  2802. Replacing a battery with a charged capacitor
  2803. Gravitational motion problem, degrees along orbit
  2804. Potential Energy between molecules
  2805. Not sure how to do 2 body problem
  2806. College physics problem.
  2807. Loop the loop question, given only radius.
  2808. Physics Homework Problem
  2809. determine the largest angle - wedge
  2810. A ball tied up at an angular plane: Forces and torque
  2811. Electrical potential problems
  2812. Angular Momentum - Spherical Mass & Radius of Gyration
  2813. Line of Worst Fit in Excel
  2814. Buoyant Force acting on a body
  2815. Calculating angle with coefficient of static friction value!
  2816. Conceptual Question about Power
  2817. need help calculating angle with coefficient of static friction
  2818. Cubic equation with two unknown coefficients
  2819. Textbooks for Physics
  2820. Magnetic field, energy, and mass
  2821. Magnetic Field and solenoids
  2822. How to find charge of sphere?
  2823. Kinematics Problem
  2824. Electrostatic Field Lab Question
  2825. Center of Mass of system of particles
  2826. Mechanics problems involving velocity,acceleration and gravity
  2827. PGRE | Michelson Interferometer Equation
  2828. How to calculate Laws of Thermal Radiation
  2829. Circuit help? with two batteries and resistors
  2830. Dipole antennas & Conductivity
  2831. Moment of inertia for a hollow ball calculation
  2832. Conservation of Elastic and Gravitation Energy - 2
  2833. Calculating the Current in a Two battery Combination Circuit
  2834. Calculating change in momemtum , impulse, and average force of a person in a car.
  2835. bullet trajectories and Newton's Principia
  2836. Electric dipole in uniform electric field
  2837. Continuity Conditions
  2838. Gravitational Potential Due to a Thin Rod of Varying Density.
  2839. Conservation of Energy with a spring
  2840. Finding velocity as a function of time
  2841. Rotation at an angle - Tether ball (Finding length)
  2842. Velocity / Distance graph
  2843. Capacitance & Dielectrics
  2844. Physics Uncertainty Question????
  2845. need help with finding positive time for x(t)= cos(wt) + sin(wt) problem
  2846. Terminal Voltage Formula Doesn't Apply?
  2847. Help! Conservation of Momentum
  2848. Help! Conservation of Momentum
  2849. Spaceships in Special Relativity
  2850. Relativity of simultaneity (explosion of two fire crackers in two frames)
  2851. Resistance of a wire
  2852. Adding a wrench to a series circuit...?
  2853. Physics Bicycle Problem!
  2854. Quantum Theory of Metal- Mean Free Path
  2855. theories on Series and Parallel Resistors
  2856. theories on Series and Parallel capacitors
  2857. Question on Physics problem of time and distance
  2858. Acceleration of Rocket
  2859. Capacitor Charge within a time period
  2860. Change of kinetic energy problem
  2861. What force opens a folding knife?
  2862. Forces on symmetrical electrostatic charges
  2863. Entropy and Adiabatic Expansion
  2864. Coulomb's Law with 3 Point Charges
  2865. change in Grav PE with the change in origin.
  2866. Energy Lost due to Friction
  2867. Thermodynamics - Calculate the initial temperature of the iron.
  2868. Restoring Force
  2869. Work Done by Gravity
  2870. Compressed spring, doubling speed of impact
  2871. Work Done with Friction
  2872. Electromagnetic induction question, includes solenoids
  2873. Force on a Box
  2874. Electron drift speed, Current, and Electric field in hollow wire?
  2875. Physics Current Problem (I1,I2,I3)
  2876. Electric Potential of a hollow cylinder
  2877. Isothermal Compression and Entropy Change
  2878. cylindrical shell- electric potential problem
  2879. Gravity car/module/contraption thingy
  2880. Newton's Second Law Concerning Net Force
  2881. Capacitors - Conservation of Charge vs Conservation of Energy
  2882. Magnetic Flux and Induced Voltage Interesing question
  2883. Find the Voltage in This Circuit
  2884. Solving trig problem for trajectory
  2885. A Block Sliding Across the Floor
  2886. Does a magnetic field occupy space?
  2887. A few quick conceptual questions about capacitators and dielectrics
  2888. Need help calculating friction and normal force for "Measuring Friction" Lab
  2889. Voltage and Current in RC circuits
  2890. How do I find the spacing(d) of a grating in a diffraction grating experiment.
  2891. What is the current through Resistor on RC circuit
  2892. Applications of Magnetic Fields
  2893. I need help with calculating pressure
  2894. Oscillation and Moment of inertia
  2895. oscillation damped oscillations ? how to calculate energy after t
  2896. Work required to move charged particle traveling in a circle
  2897. satellite changing distance as θ changes.. how?
  2898. Kirchhoff's Rule and finding current with a system of equations
  2899. Time taken to reach 90% of terminal velocity
  2900. orbital angular disp. in 1 day & centrip. force and Acceleration of planets help!
  2901. Finite square well potential question Constants
  2902. Physics 211 help please! Where do i even start?
  2903. Voltage Drop Over Voltmeter
  2904. Force: A Conceptual Question
  2905. confused with km/h to m/s
  2906. Relativistic rod moving in two directions.
  2907. Collision response calculation doubts and issues
  2908. Magnetic field in a cavity
  2909. potential, dipolemoment...
  2910. Waveform conversion of Analogue to Digital
  2911. Gaussian cylinder in the finite case
  2912. Finding the latent heat of vaporisation
  2913. Electric potential between two point charges
  2914. compound microscope (position of the object)
  2915. Youngs Double-Slit Experiment
  2916. Find an expression for the sum of the series
  2917. Projectile Motion: Shooting over a hill
  2918. Help with introductory Physics (I keep getting different answers)
  2919. Particle detectors and Flemming LH rule
  2920. Physics magnet conceptual question
  2921. C++ Model of a charged particle in a magnetic field
  2922. Forces in equilibrium. Tension, ring on string.
  2923. Centripital Acceleration problem
  2924. revolutions of a tire and angle in radians thru warranty
  2925. Find tension between blocks 2 & 3
  2926. Creating an Electrical field equation
  2927. Find the Tension
  2928. Work done by friction on a skier and resulting distance the skier travels
  2929. Galileo's Acceleration Hypothesis
  2930. Parachute- acceleration due to gravity
  2931. Ampere's law in a nonuniform conducting cylinder.
  2932. Time to stop oscillation in liquid medium
  2933. Proportion Problem Dealing with Moon's Period
  2934. Velocity of a projectile fired horizontally from a spring launcher ballistic pendulum
  2935. Light Intensity transmitted through the polarized and analyzer
  2936. Graphing The ΔV between three charged metal electrodes
  2937. Intermediate Physics Lab Analysis, Uncertainty and Linear Regression
  2938. Problem about an sphere.
  2939. Centripetal Force/Changing direction on ice - Turn length
  2940. Forces in equilibrium. Tension, ring, pulley and lots of string [With Picture!]
  2941. Time required to raise Temperature knowing heat transfer rate
  2942. finding equivalent resistance
  2943. Graphical Analysis for Force of Electrostatic Replusion vs Produc of Charge help
  2944. Calculate current in one resistor in RC circuit
  2945. Centripetal Acceleration with Tarzan
  2946. What fraction of the distance do the block move?
  2947. Exponent Help
  2948. LEO cannon ball
  2949. buoyancy calculating unknown density
  2950. Partition sum of particle, high/low temperature limits
  2951. Finding Velocity and Distance of a raised mass
  2952. Calculate the Distance of lightning
  2953. Proton moving in a magnetic field
  2954. Newton’s cannon ball and the moon
  2955. kinetic energy, help!!?
  2956. Atomic Nucleus
  2957. Entropy of Objects and the Universe
  2958. Maximum distance of charge
  2959. Moment of Inertia and kinetic energy question
  2960. Analyze beats using complex exponentials
  2961. Plane change
  2962. Gravitational Potential Energy, Elastic Potential Energy, and Kinetic Energy
  2963. Facts I need to learn in Physics besides the formula
  2964. Coefficient of Static Friction with Acceleration
  2965. Instantaneous velocity of an object with varying mass at the bottom of a slope
  2966. Electrostats
  2967. How do I slove this quadratic equation?
  2968. Finding electrostatic potential energy
  2969. Pendulum Damped by Air Resistance
  2970. One Dimensional Collision dealing with Reference Frames
  2971. Capacitance of Capacitor
  2972. Does Newton's third law apply to Atwood's machine?
  2973. Energy and Entropy from P-V Diagram
  2974. Weight in an Elevator and Normal Force
  2975. Electromagnetic Induction
  2976. Calculating Center of Mass, 1988 Physics C Mechanics MC
  2977. Ball Hits Wall
  2978. Help with Complex Exponentials
  2979. Transposing Terms for an Isotropic Oscillator
  2980. Momentum and Impulse
  2981. Rotating rod with an object connected by a cable on the end, a trebuchet simulator
  2982. Non-elastic collision without outside influence
  2983. wave optics question?
  2984. Ratio Problem Dealing with Radius and Centripetal Acceleration
  2985. Dynamics Question: What is the velocity of a car traveling on a known curvature
  2986. Tension in Cables of Differing Angles
  2987. Capacitors
  2988. Thermodynamics Problem
  2989. what are the systems that I am comparing in this entropy problem
  2990. Gravitational pull on asteroid/Period it takes for one orbit
  2991. Thermodynamic- Internal energy of dry air
  2992. Friction with two stacked blocks and friction
  2993. Simple lab with two blocks and pulley
  2994. Measuring the doppler-effect
  2995. Basic forces help
  2996. Parallel plate capacitor's plate distance is doubled, does the energy double?
  2997. Electric Field Problem
  2998. Free vibrations of stretched strings
  2999. Another Electric Field Problem
  3000. 1D oscillator solving for Amplitude
  3001. equipotential lines and electric field lines
  3002. Wavelength and Speed of Sound
  3003. Magnitude of an electric field
  3004. Dependent motion problem with ropes
  3005. Bfields and work
  3006. Newton's Laws (Force)
  3007. Thermodynamic heat power problem
  3008. Rocket on a compressed spring
  3009. RC capacitor discharge
  3010. Spring energy to kinetic energy
  3011. Adiabatic, isobaric & isothermal expansions
  3012. Hanging Mass on Spring
  3013. mechanics, conservation of momentum.
  3014. Kinetic Theory and Elastic Collisions
  3015. Semiconductors
  3016. thermal conductivity
  3017. Showing the Terminal Velocity equation is dimensionally correct.
  3018. Calculate total time taken for an object thrown at an angle from a height
  3019. Moments about a point (statics)
  3020. Calculate the orbital period
  3021. enclosed liquid
  3022. Comparing moment of inertia to mass in linear motion
  3023. Finding the KE of a flywheel
  3024. A problem involving Force in terms of time????
  3025. Particle breaks into two others
  3026. Total Power output Sound!!
  3027. Work and Tension
  3028. Energy dissipated through resistor
  3029. Two soap bubbles are touching each other.Radius of curvature at point of contact ?
  3030. Velocity from Force position graph
  3031. Why is the work zero?
  3032. Clarification of homework question meaning
  3033. find angular momentum of a body moving around other in elliptical path?
  3034. Kinetic energy and collision involving a spring
  3035. Electric Fields of Capacitors
  3036. Inelastic Collision with friction
  3037. Net force (Diagrams incl) Please check my solutions :)
  3038. Air Resistance effect on different masses
  3039. Object placed in a fluid, both fluid and object are different densities
  3040. Circuits with capacitators connected parallel
  3041. Net Force at the Bottom of Circular Motion
  3042. Magnitude of total electrostatic force on a third particle...?
  3043. Inertia
  3044. Word Problem
  3045. Impulse word problem
  3046. Initial and final Momentum
  3047. FBD, friction, force placement
  3048. Ratio of oxygen in atmosphere
  3049. Dependent motion with ropes question
  3050. How do you find average value of normal acceleration?
  3051. Basic quantum mechanics-doubt
  3052. Binary stars ,time period of orbit?
  3053. Torque required to rotate a disk
  3054. Shock wave experiment
  3055. Can please check my answer ?
  3056. Balls dropped and thrown at the same time
  3057. Tiny part of derivation for the energy levels occupied by a free particle in a box.
  3058. Current in a hollowed nichrome wire
  3059. Making a pan flute. Need help.
  3060. Pendulum Period change due to gravitational force change
  3061. Velocity of points on a moving wheel relative to the ground
  3062. Calculating maximum load and counterweight of a tower crane
  3063. Uncertainties of Dimensionless Units
  3064. Work/energy problem
  3065. Necessity to discharge capacitors in circuits
  3066. Two radii pulley lifting a pack
  3067. Greenhouse Gases and Resonance
  3068. Inclined plane question?
  3069. electric field inside a parallel plate capacitor
  3070. Pivot Force Reactions
  3071. Physics 12U - 5 Force Problems
  3072. College Physics Problem Genesis Mission
  3073. College Physics Problem Capacitor / Inductor
  3074. Help finding work of gravity
  3075. Proof using mainly classical mechanics
  3076. Adding vectors
  3077. Projectile Motion - Distance between Packages
  3078. Isobaric compression
  3079. Net Force given mass, force, angle.
  3080. Magnitude of the current in a battery
  3081. Potential Difference of a Capacitor System
  3082. Statistical mechanics: Particle on a spring
  3083. Question on magnets and induced magnetism
  3084. Is this right?, conservation of energy!
  3085. Trigonometry - solving force into components and determining magnitude of components
  3086. buoyancy problem in two liquids
  3087. mouse onto the edge of phonograph turntable
  3088. Moments Help
  3089. Hollow Conducting Sphere
  3090. Half Life - Calculate Fraction Remaining
  3091. A wheel rotates with a constant angular acceleration of 3.30 rad/s2.
  3092. Work problem
  3093. Proving that apparent weight is 5 times actual weight (no numbers)
  3094. A Question About Weight and Pressure
  3095. Solving circuit using complex numbers
  3096. Relativistic particles travelling at near light speed, past a detector
  3097. A spring is compressed by 90 cm...
  3098. Superposition of two wavefunctions
  3099. Finding efficiency between transformers.
  3100. Find final velocity and kinetic energy lost.
  3101. Find the dimension of capacitor given [phi]E and Id
  3102. Work and Changes in Kinetic Energy
  3103. Rope with mass but ignoring Pulley
  3104. Resultant of 3 vector inputs
  3105. Velocity and Gravity Problem. Basic question. NEED HELP
  3106. lithium energy levels
  3107. Ellastic collision problem.
  3108. potential difference of a conducting pipe
  3109. The Component of Forces
  3110. Capacitors and Dialectrics
  3111. Magnetic Field / Force problem
  3112. coefficeint of thermal expansion of the ice was the same as coeffiecient of thermal c
  3113. Question about a solid cylinder
  3114. How to read graph.
  3115. Thermo Questions
  3116. Work, Power, Frictional Force - seems a bit tricky for me
  3117. how do i rank magnetic field intensity given amperes?
  3118. Angular acceleration without rotation?
  3119. Uniform acceleration problem
  3120. Motion & Projectiles Help Please
  3121. Inserting Dielectric and Direction of Force on It
  3122. Friction help, please
  3123. Motion Help Please
  3124. Coeficcient of Friction
  3125. Basic circuit question (True/False)
  3126. How fast did you throw the ball in order to get it into the basket?
  3127. wave amplitude
  3128. Circular Motion Help Please
  3129. Uniform Circular Motion - Finding Linear Speed
  3130. Electromagnetic Induction
  3131. Rings Vs Disks In Moment of Moment of Inertia Integral
  3132. Ballistic pendulum, finding final height
  3133. From the Fukushima Daiichi forum - heating and cooling with water
  3134. Using Kirchhoff's rules to calculate current
  3135. Polarization by reflection
  3136. Comparison of Net Electric Force on a +q
  3137. Sphere rolls down and compresses spring
  3138. Deriving Formula of Kinetic Energy using f = ma
  3139. asymetric truss
  3140. wrong relationship?
  3141. Magnetic Field and electric Field
  3142. How long will it take for one cylinder to turn one revolution?
  3143. Find linear acceleration.
  3144. Is kinetic energy of center of mass of a system is equal to KE of of system??
  3145. Magnetic Field Circuit Problem
  3146. Basic Kinematic Problem
  3147. Electric Potential problem
  3148. Finding the Kinetic Friction Force using Mass and Acceleration
  3149. Charge over an Insulating Plate
  3150. Acceleration and Friction of a Rolling Cylinder
  3151. Find final angular velocity.
  3152. Two Capacitors Problem
  3153. Resistive ladder of infinite height
  3154. Newton's Laws, Finding Correct Acceleration and Applied Force
  3155. Kirchoff's Rules
  3156. Gen Physics 1 Help
  3157. Statistical mechanics: Particles with spin
  3158. Relativity and Time Dilation
  3159. damping. Altitude vs. Period which has greater effect?
  3160. really simple, system in equilibrium (weight and tension in light string)
  3161. Special Relativity and Decaying Particles
  3162. Speed of EM waves in a baseball park setting
  3163. The rocket launch and changing gravity
  3164. Is there a word for the Group with metals, metalloids and non-metals
  3165. heat transfer coefficient water air/water
  3166. Magnetic Field Circuit Problem
  3167. infinite plates, with current running through
  3168. Calculating the gravitational field due to a horizontal uniform thin disk
  3169. Velocity required to increase friction?
  3170. Coefficient of friction of a Skateboard on a ramp
  3171. total internal energy change of a gas
  3172. Ultrasound - intensity reflection coefficiant calculations
  3173. Hooke's law as pertaining to a bungee jumper and the length of tan unstretched cord
  3174. A block is pulled with constant tension up an incline, find the distance?
  3175. Force and acceleration leading to weight of a parachutist
  3176. Momentums, Ladder against a wall force
  3177. Calculating gradient with distance and speed
  3178. momentum of objects acted upon by same force
  3179. Forces - Homework
  3180. Momentum of a Tennis Ball at an Angle
  3181. Gravitational Potential Energy and Kinetic Energy
  3182. Special Relativity. How to use the Lorentz Transformation?
  3183. Dielectric Influence on Series and Parallel Capacitors
  3184. Weight on a Scale Down an Incline vs. True Weight
  3185. Twin Paradox-esque Problem
  3186. Relationships with Frequency
  3187. Elastic Collision with a Softball
  3188. Specific Heat Capacity and Energy
  3189. Power in a driven RLC Circuit
  3190. Simple Harmonic Motion with Spring
  3191. determine the unknown property of a perfect gas
  3192. determine the unknown property of a perfect gas
  3193. Calculus based physics - Energy
  3194. Nodal analysis with parallel resistors
  3195. Vertical Circular Motion involving centripetal force
  3196. Brownian motion: Gaussian distribution
  3197. analysis of an accelerated cart on a ramp
  3198. Spacetime diagram problem (spacelike intervals)
  3199. Potential of a non-uniform charged rod
  3200. Help finding minimum Tension that a rope can withstand without breaking
  3201. Gravity on the Moon
  3202. Speed of waves in a nonuniform wire
  3203. Finding the potential between two charged conducting shells?
  3204. Distance over Force of a Magnet
  3205. Pascals Law Problem Help :P
  3206. challenging question on fluid dynamics
  3207. Simple Power calculation
  3208. Vertical air resistance
  3209. showing momentum conservation
  3210. Center of Mass, Man, Woman, and Frictionless Ice
  3211. energy needed to connect two repulsive magnets
  3212. Don't Know Much About Al-ge-bra...
  3213. When the Sun is directly overhead, a hawk dives toward the ground with a constant vel
  3214. outward radial motion in unbanked turn
  3215. Linear drag in a liquid and terminal velocity
  3216. Electric Potential Derivative
  3217. What is the charge of a point at the center of a ring...
  3218. What is the induced current?
  3219. electron in solenoid
  3220. Combination Problem: Work and Conservation of Momentum
  3221. Magnetic field along a current-carrying wire (conceptual question)?
  3222. what is the torque if the rope is attached...
  3223. Differentiation tricks/shortcuts
  3224. Magnetic field in asymmetric hollow cylinder
  3225. Time Dependent Current in a wire
  3226. Help! AP physics C mechanical
  3227. Tension
  3228. Magnetic fields and charged particles
  3229. Navigation Physics Vectors
  3230. Wavelength of a Photon
  3231. Reverse Carnot - Refrigeration Cycle problem
  3232. Lifetime of CO2 in Mars atmosphere
  3233. Using Phasors to Graph Intensity vs Angle (4 slits)
  3234. Moments and the line of action of the resultant force
  3235. Rocket Fuel Problem
  3236. Centre of Mass
  3237. Special Relativity (1-dimensional Lorentz Transformation)
  3238. DC circuits
  3239. Electromagnetic Induction Lab. Magnet through a coil
  3240. Schrodinger equation, normalizing
  3241. Toy Rocket Excel Sheet - Instantaneous Rest Frame
  3242. Change in potential energy/work formula for electric charges.
  3243. Capacitors with dielectrics
  3244. Detemining the mass of water vapour in air (Ideal gas law)
  3245. e field
  3246. Elliptical motion about the origin
  3247. Angle help!
  3248. help with lens selection and arrangement for maginification
  3249. Optical Path Length
  3250. Differential Equation - Springs
  3251. Experiment with forces - Formula question
  3252. Orientation of Receiver Antennas given orientation of transmitter
  3253. Electric Field HW Help
  3254. Planck constant
  3255. Planck constant "V" in E=qV question
  3256. Projectile motion Problem(Is My Ans Correct?)
  3257. Circular motion: Car driving along a circular hill
  3258. kinematics of a point in rectilinear motion
  3259. Average Force using Newton's Laws of Motion
  3260. rectilinear motion (displacement, position) calculus
  3261. AC circuit steady state expression
  3262. Double Slits experiment
  3263. infer diameter of Pluto from orbiting Charon
  3264. Center of Mass bounded by Equations
  3265. Pressure-water vs gas?
  3266. Electrostatics -- point charges and work
  3267. Waves Unit- Angle of Incidence
  3268. Lattice Parameter
  3269. Momentum of spring between two objects
  3270. Can somebody check my work?
  3271. Electric Flux Through a Cone
  3272. Center of Mass Rowboat Question...Please Help!
  3273. Kinematics: acceleration and speed
  3274. Motion questions and a mass one.
  3275. Differentiating Vector Products
  3276. find the moment of inertia
  3277. Does a balloon's temperature increase when a balloon is popped?
  3278. Electric Field inside a nonconducting sheet
  3279. Wave on a string under tension
  3280. fluid pressure question!
  3281. Find the size of Driving couple, if given the power?
  3282. Constant potential inside spherical shell
  3283. Linearising compound pendulum equation
  3284. Regular Elliptic Pendulum - Help Please
  3285. Youngs modulus of elesticity
  3286. Why did we assume it to be 45 degrees?
  3287. Magnetic Force Experienced by a Loop of Wire
  3288. Work Energy and Kinematics
  3289. Three forces in equilibrium. Uniform rod
  3290. Time derivatives
  3291. Not sure which formula to use! Deals with work and position
  3292. Difference between internal E and enthalpy
  3293. Sine of sum and difference with 3 values
  3294. Relativity problem
  3295. Matrix calculation problem
  3296. Magnetic Field Induced Current Problem
  3297. Voltage across a resistor
  3298. Adiabatic Compression
  3299. derivative of kinetic energy with respect to position help
  3300. magnetic force
  3301. Molecular Velocity
  3302. Calculating electrical potential difference with a sphere...
  3303. # of elecron/sec in a 3 bulb circuit
  3304. Delta Vee
  3305. Spring force - answer multiple of 10 off
  3306. Need help with free body diagram
  3307. Work done by General Variable force
  3308. Rutherford Scattering Help
  3309. The only trajectory problem on my whole SI sheet (trajectory) I cannot do!
  3310. Projectile motion in physics
  3311. Simple and basic momentum and work done Qs!
  3312. Momentum and movement basic GCSE Quest
  3313. Box on an inclined surface with Force of Friction and angled applied Force.
  3314. Physics Lab Experiment- Confused on what we are measuring
  3315. Ax and Ay As a linear combination of Atan and Arad
  3316. Simple harmonic motion problem
  3317. 2 questions, both about balancing force/torque!
  3318. Calculating Pressure - to Integrate or Not?
  3319. Find the center of mass of the solid
  3320. Two Pulleys with two acceleration and two tensions (Diagram included)
  3321. Satellite Hohmann transfer problem
  3322. Orbital Energy Conservation
  3323. Incline, friction, and energy
  3324. block moving down circle, a straight path, then into a spring
  3325. Magnetic Fields from Currents in a Wire and a Cylindrical Shell
  3326. static equilibrium
  3327. Max tension in rope for a spinning object, whats the max kinetic energy possible?
  3328. whats normal force at top/bottom of loop
  3329. finding the force from given potential energy
  3330. Help with Kepler's laws and satellite motion.
  3331. Coulomb's Law
  3332. Modelling an Airplane Landing?
  3333. acceleration in electric field
  3334. How long will it take to overtake
  3335. Help with Force/Vectors.
  3336. Dynamics and F=ma, where a is 0
  3337. Newtonian Mechanics:friction, tension and acceleration
  3338. stuck in a problem
  3339. Projectile motion on a hemisphere
  3340. Refraction - Spherical Surface
  3341. [HELP!] A Dazzling Optic Problems
  3342. potential well solutions question
  3343. how long does it take a ball to be back
  3344. finding the average slope of a parable
  3345. (Mathematical Physics) Mass on four elastic rods
  3346. Finding the total resistance of a complex combination
  3347. Advanced Forces Question, Forces Inside a Moving Car
  3348. problem involving momentum
  3349. Please Help!!!!! Physics I Midterm Exam in 2 days!!!
  3350. vector transformation, cylindrical to Cartesian
  3351. I need help with the Doppler Effect - I solved 2/3 parts of the problem
  3352. Torque on a Current Loop
  3353. elliptic pendulum
  3354. Spring under gravity
  3355. Finding angle of inclination. Hanging object.
  3356. Problem interpreting this interference question
  3357. Object Beneath the Water Problem
  3358. Wave Equation after Reflection
  3359. units in a heat transferred calculation
  3360. How to solve this resistor network
  3361. Heisenberg Uncertainty Principle or Diffraction problem
  3362. x = Acos(ωt) + Bsin(ωt) derivation
  3363. Physics Laboratory (Projectile Motion)
  3364. Radiocarbon dating of a piece of wood
  3365. Banked curve angle w/no friction - teacher's work differs
  3366. Components of a magnetic field in a uniform wire
  3367. Electric Field/ Coulomb's law.
  3368. Electromagnetism with Lentz's Law
  3369. Simple work and variable position question
  3370. Center of gravity (x and y coordinates) of mechinist's square
  3371. Simple Harmonic Motion Problem
  3372. determine the work as objects moves in straight line
  3373. Adiabatic tube HW Problem
  3374. Newton's Laws: Distance of a car accelerating, then slamming on the breaks.
  3375. Mechanical Waves On a String - Speed, Amplitude, and Power
  3376. quick question about pressure radiation for reflection
  3377. Right Hand Rule for Vectors
  3378. Mass Moment of inertia of a cylinder with 4 holes?
  3379. Doppler Effect
  3380. Current induced magnetic field
  3381. A multiple concept problem thermal expansion/stress
  3382. Torque On Disk
  3383. A,B,C and D are 4 beams ..what beam we can change it to chain and this system till
  3384. some of mechanical apptitude test..
  3385. mechanical apptitude to suggest the direction of action.
  3386. Tension in string
  3387. Optics - Reflected and Transmitted light equation
  3388. stress in a string
  3389. Find distance with magnetic field and current?
  3390. conservation of angular momentum in a spinning figure skater
  3391. Rolling Friction vs Velocity
  3392. Finding distance with given mag field and current
  3393. Hamiltonian Mechanics
  3394. Understanding the Helmholtz energy.
  3395. Find the speed of the charge
  3396. What is the surface charge density?
  3397. How to find magnitude of Q1 and Q2?
  3398. Two blocks sliding down a rough inclined plane
  3399. Conversation of energy
  3400. Ideas for Physics Research Proposal?
  3401. Can someone help me with this static friction problem?
  3402. Physics Lab Centripetal Force - deriving the error in the calculated centripetal forc
  3403. Work energy theorem
  3404. Internal Resistance problem when batteries are connected in opposition
  3405. The mass of a proton is 1836 times the mass of an electron.
  3406. Bowling Ball
  3407. MCAT Physics Question: Mechanics III
  3408. Calculate Absolute Pressure ?
  3409. Collision avoidance
  3410. Collisions and relative energy loss
  3411. Calculate Absolute Pressure ?
  3412. Propeller testing: advance coefficient vs thrust coefficient
  3413. The Path of Light Using Calculus of Variations
  3414. Particle Accelerator problem with a proton beam hitting a target
  3415. Lamborghini Speed test Calculations
  3416. Black body balloon in vacuum
  3417. To double the energy stored by a capacitor, you should:
  3418. Cylinder rolling down an inclined plane
  3419. Uncertanty in double slit diffraction
  3420. analyzing the roll of a bottle half filled with fluid
  3421. Astronomy - Hohmann Transfer Orbit
  3422. Algebra sorting
  3423. Finding the spring constant with a given range, angle, mass, and length of launcher
  3424. Derivation of simple pendulum formula
  3425. Two boxes connected to a string over an ideal pulley?
  3426. Gravitational potential energy concept question
  3427. Kinetic friction on an incline.
  3428. Ideal gas explanation
  3429. Current needed to keep coil levitating
  3430. Fluid flow rate lab- need help with analysis!
  3431. Kinematics - calculating acceleration
  3432. Moments of inertia rigid body
  3433. Derive expression for induced voltage and current
  3434. Conceptual Question For Vectors
  3435. Radial Electric Field
  3436. 2-Dimensional Momentum Problem
  3437. Elevator falling on spring question
  3438. tough tough kinematics
  3439. Kinetic Energy in an Explosion
  3440. Advanced Rotational Velocity Question
  3441. Approximation of distance to a Type Ia
  3442. Work Energy Theorem A Baseball thrown from a roof
  3443. guy on a swing, given angle
  3444. lifeguard swimming to a dock
  3445. Understanding RL circuits
  3446. Distance away to create the same magnetic field strength?
  3447. Calculating forces using point charges.
  3448. Deviation by a thin prism
  3449. Tension in a rope connecting charged spheres.
  3450. Amount of work it takes to bring a 10 uC charge from infinity to a specific position?
  3451. Tension of wires holding a suspended sign in equilibrium
  3452. Reflection, refraction
  3453. moment vector expression to magnitude of moment
  3454. Roller Coaster Physics- Determining the highest point's height
  3455. Work and Energy
  3456. magnitude of tension force using moment
  3457. Magnitude of changing magnetic field
  3458. Non-Interacting Particles interact with a Potential
  3459. Helium Absorption
  3460. Inductor considered as a broken wire.
  3461. Question involving vector & magnitude
  3462. Energy Lost to Heat ~ Spring
  3463. probability current question
  3464. Statics: System in equilibrium - determine height (h)
  3465. average velocity in g's
  3466. Reynolds number question
  3467. Calculating the time required for the cooking robot to flip an object
  3468. Dependency between force F and length L (Magnetic Field)
  3469. Calculate the magnitude of the magnetic field
  3470. Finding displacement from variable acceleration
  3471. Pulse like a wave: maximum transverse speed at a specific x point for t = 0
  3472. MagLev train energy requirements
  3473. Schrödinger for a Step
  3474. Addition of grav potentials / Orbital velocity
  3475. Finding Velocity from Acceleration
  3476. Thermodynamics help on the first law please
  3477. Snapshot and history graphs for a string under tension (drive mechanism)
  3478. Squirting fluids by driving Syringes (experiment)
  3479. What would my uncertainty be with these 2 values?
  3480. Relationship between force on a stopper in Uniform Circular Motion and Hanging washer
  3481. Finding the magnitude of the magnetic field of a moving point charge
  3482. 1 pulley, 2 masses, 2 inclines
  3483. HELP! Find the mass in this inclined pulley system, required to move the 2 masses
  3484. HELP! determine work needed to push a crate up a ramp at constant speed
  3485. Momentum and Energy and Galilean Relativity
  3486. Rate of Deceleration & Magnitude of Force
  3487. centripetal force
  3488. Finding x(t) from a time dependant force
  3489. Infinite-distance object lens depiction
  3490. My Challenge Question
  3491. Find the force of compression.. help please!
  3492. Air Trapped In Capillary Tube
  3493. Rotational Second Law Physics
  3494. Rolling, Torque, and Angular Momentum
  3495. Special relativity velocity and spaceships!
  3496. nature of motion of body
  3497. slipping
  3498. Dynamics, dependent motion analysis
  3499. Direction of magnetic forces
  3500. Finding velocity and work involving friction Work Energy
  3501. Quick conceptual question about disconnecting battery!
  3502. Circuit With Three Batteries Two Resistors
  3503. Finding Resistance of a Voltmeter
  3504. Magnetic Force in a Current Carrying Wire
  3505. 2-body central force ( gravity ) problem
  3506. Harmonic Potential of Non-Interacting Particles
  3507. Refractive index and depth of object in water.
  3508. Wheel And Axle System
  3509. Angular vel. and mom.--origins vs. axes
  3510. Two colliding spaceships in Special Relativity
  3511. Quantum Mechanics Particle moving in 1-D potential
  3512. Calculating gear ratio for vertical climb
  3513. friction and dynamics
  3514. derivation of kintetic theory equation
  3515. Heat radiated from within a shell
  3516. Cross Product application problem
  3517. friction and a pulley
  3518. Got a few questions stumping me!
  3519. Homework questions - Newton's Laws
  3520. What is the direction of acceleration for the block moving on the xy plane?
  3521. Hooke's law when bungee jumping
  3522. Work with varying forces. Work energy theory
  3523. Variable Resistror, Calculating Vo
  3524. Help with interesting problem of impact forces
  3525. relative motion
  3526. Where is the magnetic field zero between two antiparallel current-carrying wires
  3527. Rolling, Torque, and Angular Momentum
  3528. Induced Emf in a Rectangular Coil
  3529. Angular acceleration and angular velocity
  3530. Direction of current flow in a circuit
  3531. Scale Hanging From Ceiling of Elevator Question
  3532. Calculating rms speed of hydrogen molecules
  3533. Momentum: Nucleus decays into 3
  3534. Spring Loaded Collision
  3535. Show that if v . v' = 0 (both vectors) then speed v is constant
  3536. Magnetic Vector Potential
  3537. I am very lost with my physics homework.
  3538. Center of Mass boat distance from shore...what am I doing wrong?
  3539. Find coefficient of friction
  3540. Spring with a mass at an angle, need original length of spring
  3541. which pulley system requires the least force to lift the same weight?
  3542. If bar A moves right at a speed of x,how does bar B move?
  3543. Measuring specific heat capacity
  3544. consider two balls of exactly the same size and material. Ball A is filled with air a
  3545. Electric field of a cylindrical capacitor
  3546. Energy WorkTheorem
  3547. Special Relativity - Relativistic Dynamics
  3548. How much rotational kinetic energy does the disk have...?
  3549. Determining Work Based on a Charge and Particle
  3550. Conservation of energy
  3551. Overlapping Charged spheres: solve Electric Force of point charge (Q) locations
  3552. conservation momentum/energy
  3553. Momentum and movement basic GCSE Quest
  3554. conservation momentum/energy
  3555. Rotational energy of an object.
  3556. Entropy and Final Temperature
  3557. elastic collision
  3558. Basic Circuit , can you do it?
  3559. What physical aspect of a converging lens affects magnification
  3560. Thermodynamics: Waters Mixing
  3561. help me find the distance traveled using COR
  3562. simple harmonic solution
  3563. Statics: System (3D) in equilibrium - determine unknown variables (h)
  3564. Thermodynamics : Heat transfer question.
  3565. Finding speed from force-vs-position graph
  3566. Electromagnetism help.
  3567. Dynamics - Object Sliding Along A Frictionless Wall
  3568. Magnetic Flux through solenoid question
  3569. Special Relativity Question (for a paper)
  3570. Sound Waves - Close End Pipe
  3571. percentage uncertainty and percentage difference
  3572. Calculate the energy density of the Earth's atmosphere
  3573. Particle moving in a one-dimensional potential
  3574. simple wave packets problem
  3575. A bullet strikes a block like boom boom pow
  3576. how to solve an equation
  3577. Magnetic Field of a Moving Point charge
  3578. Ball Acceleration and Trajectory Question
  3579. Sin Law
  3580. In a physics lab experiment, a compressed spring launches
  3581. determine equation given 3 points and 2 lines
  3582. Find power when resistor, capacitor, and inductor are connected in a series
  3583. Work-Kinetic Energy Problem
  3584. Circular rotational motion (kinematics)
  3585. Need help on a difficult pulley problem
  3586. Concervation of Momentum: Bullet and Block of Mass
  3587. Current carrying wire in uniform magnetic field; where is net magnetic field 0?
  3588. Circuits: What does the voltmeter read?
  3589. Net magnetic field caused by current from two wires
  3590. Statics equilibrium truss
  3591. mechanical efficiency problem
  3592. Hitting a moving object?
  3593. circular motion problem
  3594. UCM - Derive speed, of a body moving, radius r, and the frequency f.
  3595. Resistivty
  3596. A bit of help with a capacitor problem
  3597. Resistance of DC Motor Experiment
  3598. Spring system: Relationship b/t mass and distance object travels
  3599. Newton Law's of motion question
  3600. Maxwell - Faraday equation.
  3601. The classic momentum transfer between balls question
  3602. Sum of two waves & wave equation
  3603. Magnitude of Current through a Rectangular Loop, given the Magnetic field
  3604. Efficence - Calculate the Force needed to life this load...
  3605. Fluid Mechanics and SHM of spring
  3606. finding applied force
  3607. Acceleration in a circle
  3608. Vapour Pressure of Water
  3609. Relativistic dynamics-collision problem
  3610. Heat transfer in pond
  3611. Calculating Amperes for converging electrical pathway
  3612. kinematic problem
  3613. resolve forces along a pivot
  3614. Special relativity A.P.French 6.8 (is there solution manuals for this book?)
  3615. minimum amount of friction in a turn
  3616. Resistivity of Copper Wire
  3617. Magnetic Field of a Thin Conducting Plate
  3618. Energy stored in an inductor of an LR circuit
  3619. given force equation, solve for work.
  3620. Relationship Between Kinetic Friction and Mechanical Energy
  3621. bungie jumper jumps of cliff. (Energy)
  3622. Argument: stiffness of divided spring + angle of evaluation
  3623. Resistors question
  3624. Work and Zero Work
  3625. need help using the lensmakers eq
  3626. finding out if work is done with between two points with same electric potential
  3627. Conservation of Energy
  3628. Finding How Far From the Ground an Object Hits Another
  3629. How can you tell if a surface is convex or concave before drawing it?
  3630. Capacitance
  3631. Ice cube melting, solving for Initial Temp of Ice.
  3632. EMF induced in a moving conductor help please!
  3633. Spring Question.. Elastic Potential and Kinetic Energy
  3634. rolling cylinder on surface with friction (initially slipping)
  3635. Force
  3636. Motors and Generators equation help!?
  3637. Conservation of linear momentum problem
  3638. Urgent: Uniform Circular Motion Questions
  3639. Initial Speed of a Projectile
  3640. Expressions for the energy density of electromagnetic waves
  3641. Projectile motion equation stuck! downwards velocity and angle
  3642. Calculation On Transformer
  3643. Block movement - dynamics
  3644. Electric field exerted at P due to a non-conducting disk
  3645. Special relativity
  3646. Impulse, Momentum, and Force
  3647. Circular motion. Uniform and accelerating. (Bridge)
  3648. Need help with transfer orbit time period
  3649. rock on a string
  3650. Collision Question dealing with Spring Compression
  3651. Electric Current as a function of time
  3652. Linear Drag Coefficient
  3653. Hanging Beam
  3654. Multiple Pulleys and Masses with Friction
  3655. Gymnast
  3656. Instantaneous Acceleration for Uniform Circular Motion
  3657. The Effect Of Using A Split Ring In A Simple D.c Motor
  3658. Distance, displacement
  3659. Seriously struggling D: Impulse and Force Question
  3660. Kinetic friction problem?
  3661. Insect wing physics? Average force?
  3662. Centripetal Force
  3663. Finding period of revolution of an electron (fairly urgent)?
  3664. Circuit with capacitors and inductors
  3665. Thermodynamics: heat-conduction problem
  3666. Pully with 2 blocks friction question
  3667. particle under central force in circular motion
  3668. rectilinear motion
  3669. Spec Rel: Changes in gradient between frames
  3670. Inelastic Collision of 2 Carts - Displacement
  3671. travelling waves
  3672. Projectile motion, missed two weeks, fell behind, no book, Please help! Thank you!
  3673. A few questions
  3674. Cons. of Energy, momentum ,and impact.
  3675. Astrophysics: Magnitude of sun when Jupiter crosses over it.
  3676. Power concept related to gravity, constant speed, and air resistance
  3677. Understanding Kepler's 3rd Law
  3678. a question on rotation
  3679. Snell's Law, indices of refraction
  3680. Angular acceleration problem / 99% sure I'm doing right but getting wrong answer
  3681. Simple proportionality question
  3682. Conceptual question regarding inductors and capacitors
  3683. Deriving a formula for atwoods Machine
  3684. General relativity question
  3685. Approx. time universe had cooled down for a particle...
  3686. Calculating resistance force parallel to a slope
  3687. URGENT: Finding Mechanical Energy, Velocity, and Height
  3688. Calculating the bounce of a rubber ball off of a domed piston
  3689. circular motion from a central force
  3690. Kinetic energy of body rotating at constant angular speed
  3691. What is the resistance?
  3692. Bernoulli's equation
  3693. Mechanic problem.
  3694. Electric Potential, conducting sphere in a conducting shell
  3695. Transverse waves on pulley - question
  3696. Calculating Tension of a bob moving in horizontal circles
  3697. Internal Resistance problem
  3698. Two-Dimensional Motion and Vectors
  3699. Why is the induced EMF inversely proportional to time (Faraday's law of induction)
  3700. Force on a rod
  3701. Parallel RC circuit
  3702. Electron accelerated through a potential difference of 26000
  3703. Projectile launch at elevated height on angle
  3704. Using Ampere's Law instead of Biot-Savart's to find magnetic field in a current loop?
  3705. AP Physics Multiple Choice Question
  3706. RC circuit time constant?
  3707. Mass of the Earth
  3708. Power, electricity, multiple choice Q
  3709. Vector Fields in Cartesian and Cylindrical Coordinates, The Curl
  3710. Leading and Lagging voltages
  3711. LC circuit: finding the time interval between maximum potential and maximum current
  3712. Finding angular velocity of a car and period of a planet's rotation
  3713. image formation with a convex mirror
  3714. impulse and momentum in an inelastic collision
  3715. Nit-Picky Questions on Induced EMF, and Electromagnetism in General
  3716. Force and Torque exerted on a dipole system from a point charge...
  3717. Covert to Watts, Input and Output Values provided, Covert it to Watts
  3718. catenary spanned
  3719. Basic Op-Amp Problem.
  3720. drift velocity
  3721. Friction Force on Banked Curves
  3722. Electrostatic problem
  3723. Two point charges. Given one find the other?
  3724. Derivation of angular frequency equation
  3725. How to find the binding energy of a photon?
  3726. Velocity distribution of atoms
  3727. PV Diagram Help
  3728. standing sound waves for fundamental and first two overtones
  3729. Energy dissipated over time by resistors
  3730. How do you simplify the following expressions?
  3731. Elastic Collision between billiard balls
  3732. impulse and momentum
  3733. momentum
  3734. Elastic Collision or Inelastic Collision? Two balls colliding.
  3735. impulse and momentum
  3736. Net Magnetic Field at the Center of a Loop and X Distance Away From a Wire
  3737. Urgent!! Pendulum problem elastic collision
  3738. Charging and Discharging capacitors
  3739. Max speed of a car at a curve banked road.
  3740. Moment of inertia in a wheel?
  3741. Electric Field via partial derivative
  3742. Skier Going Uphill - Intro Physics Problem
  3743. Velocity and Loss in Energy onedimensional
  3744. Rotational Plus Translational Motion for Sphere of Yarn
  3745. Why isn't linear momentum conserved?
  3746. thermodynamics: two pistons; different pressures, volumes, and temperatures
  3747. Momentum question involving an elastic collision
  3748. Air passes over an electrical heater at a steady rate of 2500cm^3 per second.
  3749. Otto Cycle Question.
  3750. Angular and Linear Acceleration on a Wheel
  3751. Faraday's experiment
  3752. Conservation of Momentum possibly?
  3753. Theory question about density using Achimedes Principle
  3754. question on particle dynamics
  3755. Conservation of Momentum in Different Frames of Reference
  3756. simple yet I need refreshing
  3757. Vertical Displacement of Electron (Millikan's Oil Drop)
  3758. Force exerted by a golf club
  3759. Electromagnetism: Direction of B-field
  3760. Explosion with two Ice Skaters
  3761. Force Required by Rockets and Angular Acceleration
  3762. Potential Energy of System (Uniform Rod and String)
  3763. Collision of two carts
  3764. Collision of Putty and Block
  3765. Putty on Block and Spring
  3766. Superposition of harmonic oscillations
  3767. Question (body immersed in fluid)
  3768. Kinetic Energy of a Bowling Ball
  3769. Two questions from physics 11 that my teacher cannot figure out. HELP!
  3770. Need help with finding the Kinetic energy of a satellite
  3771. Tangential and radial coordinate problem. Confused about the FBD.
  3772. 2D motion: frames of refrence: calculating velocity,heading and time
  3773. Forces on an inclined plane
  3774. Calculating Applied Torque for a Grinding Wheel
  3775. Angular momentum of ball spinning on a pendulum around a support point
  3776. adiabatic expansion
  3777. Falling Rod / Linear velocity
  3778. Velocity - time home work check
  3779. Centripetal force/motion experiment
  3780. Tension force of a Swing Set
  3781. Resultant velocity Question
  3782. Physics Dynamics Question homework help
  3783. In which situation is the magnetic force nonzero?
  3784. moment of a rod of varying thickness
  3785. Inductor lightbulb circuit.
  3786. Looking for tables of data - Nuclear/Particle physics
  3787. Helmholtz free energy
  3788. Resistors connected in parallel and series
  3789. Membrane Potential and Permittivity
  3790. Finding Max Determinant of 6x6 matrix
  3791. Finding the magnetic field at a point with two wires.
  3792. JAVA calling methods
  3793. Find the hydrostatic force on one end of the tank if it is filled to a depth of 8 ft.
  3794. Refrigerator (Thermodynamics)
  3795. Can someone please explain this solution? (magnetic fields))
  3796. Polarization, Double Slit, Single Slit
  3797. Lagrangian Mechanics question
  3798. Magnetic force of one, moving charged particle on another (vector problem)
  3799. Kirchoffs Law and simple circuit problem
  3800. Calculating torque, force and angles
  3801. Calculating the work done during an isothermal expansion using integration
  3802. Safety Valve/Pressure System question
  3803. A problem on elasticity..help me !
  3804. Equations of motion problem
  3805. Question regarding Image Charges
  3806. time=distance/speed
  3807. Calculating moments of a beam
  3808. speed=distance/time
  3809. SHM: Deriving x = A cos(wt) & Intuitive Understanding
  3810. Finding the Maximum Current in an LC-only Circuit
  3811. Magnetic Field of a Coil Problem
  3812. solving non-series (L)RC problems?
  3813. Calculate the distance the aircraft has travelled ?
  3814. Speed of longitudinal wave 30 times the speed of a transverse wave?
  3815. equilibrium of two rods
  3816. Rotating and Nonrotating Rods Superposed
  3817. Calculate the voltage drop of the train (Picture included!)
  3818. Lagrangian problem setup question.
  3819. Centre of mass problem; Non uniform rod with ball weights
  3820. Work and Power question
  3821. A person pulling a lawn mower
  3822. Limitations and improvements
  3823. Physics Question about Magnetic Force & parallel wires
  3824. angular size and telescopes
  3825. Finding the Angular Velocity of a Merry-Go-Round
  3826. Voltmetre sensitivity
  3827. Geometric Optics: Speed of light and Reflection in a glass cube
  3828. Particle Motion
  3829. Quantum Physics Maths Help
  3830. Sound Intensity and Bird Watching
  3831. Kinetic friction, mass on track when will it stop.
  3832. momentum and impulse question # 2
  3833. physics momentum and impulse questions
  3834. find the speed of fluid using bernoulli
  3835. Having problems with SHM
  3836. Calculate the pressure experienced by the sensor ?
  3837. relative velocity, force
  3838. Physical meaning of a commutator?
  3839. i am doing a physics experiment to do with the effects of friction on a flat surface.
  3840. achieve a state of static equilibrium
  3841. Work done on charge
  3842. dynamics of a particle
  3843. Can the spring constant "k" be negative ?
  3844. Book dropped on spring conservation of energy
  3845. Statics Mechanics: Looking for the flaw in my logic
  3846. High Pressure in Tyres, Won't Burst
  3847. which of the following is vector and which is scalat...
  3848. Linearization of Inverse Proportionality
  3849. lift force on roof of car
  3850. Find velocity of gun and bullet on frictionless surface
  3851. Momentum and kinetic energy of collision between two identical railroad cars
  3852. What are the conclusions you can make from this graph?
  3853. Thermal energy to be dissipated in an hour
  3854. collision between two balls, determine the speed of other ball
  3855. Problem with friction force
  3856. Calculating Magnetic Fields in Solenoids vs. Current Loops and Coils
  3857. power question
  3858. The Electric Field of a Uniformly Charged Disk
  3859. Physics Forces Problem: Helicopter lifting a truck
  3860. Potential Differences on an Electrical Circuit
  3861. In Parallel?
  3862. Calculate the angle between the displacement vector and the force vector
  3863. Current change
  3864. Electric field in a semi-circle (non-uniformly charged)
  3865. Electric Potential of three concentric spheres
  3866. Help!: If A[itex]\subseteq[/itex]B proof C-B[itex]\subseteq[/itex]C-A
  3867. Bullets, block, and conservation of linear momentum
  3868. Intensity of Electromagnetic Waves
  3869. rho hollow cylinder
  3870. centripetal, angular velocity
  3871. Avogadro's Principle and number of moles + thermodynamics problem
  3872. Finding the Force between a Straight Wire and a Triangular Current Loop
  3873. Introductory Physics Question (Energy)
  3874. A rod hanging by two strings find theta
  3875. The rate at which a damped, driven oscillator does work
  3876. A Very, Very Interesting Problem
  3877. Angular Momentum(Turntable and blob collision)
  3878. Electric Potential, Capacitance and charge of a Geiger Counter
  3879. Forces on block question
  3880. angular velocity with inertia
  3881. Historicy of nuclear energy in Europe
  3882. spring, force and two blocks
  3883. SHM: Different Final Answers When Using Energy Conversation & Trigonometry
  3884. Coulomb's law problem
  3885. Mechanic Equilibrium problem
  3886. question on circular motion
  3887. Rain drops falling in tube without hitting walls of tube.
  3888. Magnetic Fields and Resistance
  3889. Gravitational Forces Question! Tricky
  3890. Ships traveling parallel , at what angle must one ship have gun aimed to hit the othe
  3891. Can't figure out how v=r*omega is derived
  3892. Travelling towards a traffic light and doppler effect.
  3893. Kinematics -- marbles rolling down a ramp and into sand
  3894. Coulomb Force triangle question!
  3895. Physics Finding Total Distance?
  3896. momentum of particles
  3897. Show that the total relativistic energy of a proton
  3898. Change of momentum of a crate within a system
  3899. Fuzzy Dice Angle on a Hill
  3900. Work required to assemble eight identical charged particles
  3901. Info hunt \ maximum frictional force
  3902. angular velocity, acceleration. and moment of inertia
  3903. place a 3rd charge so net force is 0
  3904. Double-Slit Experiment using water
  3905. velocity frequency and period
  3906. Conservation of energy involving a spring
  3907. Swing problem
  3908. heat absorption
  3909. A farsighted man with eyeglasses problem
  3910. Find wavelength of a quantum of electromagnetic radiation
  3911. Finding initial and final velocities of projectile
  3912. Rotation about CM -- Can I use Moment of Inertia?
  3913. Very quick induced emf problem! Just needs to be checked!
  3914. Trying to verify these work relations
  3915. Can someone check my work please, thank you. :)
  3916. Finding Weight Of A Bird?
  3917. Power in network of resistors?
  3918. Parallel-Plate capacitor force
  3919. Four turn Coil
  3920. Applications of the Euler-Lagrange Equation
  3921. Compute emf using graphical Analysis
  3922. How far the aircraft slides before it comes to rest ?
  3923. Need help deriving an equation for electric field created by solenoid
  3924. Reducing Resistor Network
  3925. two balls same radius and mass rolling down a slope
  3926. Find the minimum velocity for bucket in circular motion
  3927. Effect of annealing temperature on Capacitance of MOS-C
  3928. Current through three closed loops.
  3929. Rentgen tube, De-Broile wavelength and Compton effect
  3930. Simple Harmonic motion
  3931. Finding the temperature of a box cooled by a peltier device
  3932. Frictional forces between two blocks (one over the other)
  3933. error calculation
  3934. Electromagnetism problem-ΣE on a point
  3935. Solid angle from a lighthouse
  3936. Fisherman saling up stream and drops cork travels back .
  3937. Exam question problem: moments
  3938. Mass spectrometer - no deflection
  3939. Two soap bubbles coalesce, what is the surface tension?
  3940. Somewhat wierd question for Elec Eng.Nickel plating and electrochemical equivalents
  3941. Calculate the Motor Efficiency when?
  3942. 2 Parallel connected cables resistance.Going from Diamater (mm) to m^2?
  3943. coulomb force if dielectric is placed in between them
  3944. Accelaration in a vertical circle!
  3945. Describe how to show charge is proportional to pd on a capacitor
  3946. Conservative/ Non conservative forces problem
  3947. Lab Activity: Conservation of Momentum
  3948. Radius of Bohr Atom Orbitals
  3949. Kinematics question projectiles with vector components (baseball player Q)
  3950. Forces On A Ramp Finding Acceleration Question?
  3951. Have manometer given density and mass
  3952. What Fraction Of Her True Weight Was Indicated?
  3953. Thermology,calorimetry , help with lesson
  3954. Apollo 13 Separation of the Lunar Module from the Command Module
  3955. Block moving on a frictionless loop
  3956. Self inductance and superconductivity?
  3957. Velocity-time graph
  3958. Parallel Wires and Magnetic Field
  3959. capacitive reactance
  3960. RLC Parallel circuit
  3961. Capacitor with resistors
  3962. Magnetic flux through coiled wire
  3963. Two cups are filled with the same level of Water - one has ice cubes.
  3964. Physics/Fluid Mechanics Problem - need help badly
  3965. rolling motion, confused about friction
  3966. emf diection ??
  3967. system under matrix addition (+) and matrix multiplication (.) is a field
  3968. Electric dipole radiation
  3969. Calculating the time constant?
  3970. RLC circuit, need some help with the intuition behind inductors.
  3971. Planck length - what is it really?
  3972. Urgent Help Needed - Local Minimum/ maximum question
  3973. capacitor problem ..help please!!
  3974. Thermodynamics singlestep - multistep gas compression
  3975. Finding Force of Friction - Tug of War Problem
  3976. Centripetal Force - maxium downforce for no skidding
  3977. Magnetic Flux through Solenoid
  3978. Rearranging equations-need clarifying & pointing in the right direction!!!!!! (long)
  3979. Magnetic field - affect on steel ball
  3980. work done by variable force
  3981. volume of water a ship must displace to float
  3982. Waves and Superposition problem
  3983. Rate of entropy generation (can it be negative?)
  3984. Diffraction Grating
  3985. Speed along the sides of the anngle of their points of intersection with the ruler?
  3986. Uniform Circular Motion in a Watch
  3987. Dynamics problems(force and friction and such)
  3988. Horrible Homework question on alternating currents
  3989. Body moving with constant accelration over two equal segmants given time find accerla
  3990. I need help figuring out the kg of ice can you melt
  3991. Finding permability of free space from Magnetic Field vs. Current graph
  3992. interference of light
  3993. Help please -- marble rolling around loop-the-loop
  3994. Mass Moment of Inertia
  3995. Finding Maximum Amplitude
  3996. 2-D Uniform Motion Problem
  3997. Lights and Optics
  3998. Biot-Savart Law, right angle
  3999. Im trying to work out the acceleration and ave velocity for a model helicopter
  4000. Refraction in a prism, Snell's law: Please help!
  4001. Application of newtons laws (Friction related) check my solutions please :)
  4002. Finding Kinetic Coefficient of Friction
  4003. Complicated Catapult/Conservation of Energy Test Question
  4004. light from air to acrylic and acrylic to air
  4005. Determining resistors in AC/DC circuit
  4006. Calculate the 4th line of the Balmer Series
  4007. Physics Calculation Write-up
  4008. Magnitude and direction of the Electrostatic Force
  4009. Dynamics physics urgent help please!!
  4010. Disspersion
  4011. Interference
  4012. Dynamics Physics help urgent
  4013. Magnetic Dipole Moment of an Electron
  4014. Torques on a Ruler
  4015. Reliability of a System
  4016. Uniform Circular Motion Bicycle Tire
  4017. Children on a Merry go Round
  4018. Rot. + Trans. Motion: Conservation of E
  4019. Arrangements of Springs and Extension
  4020. Newton's Laws Finding Applied Force and other Forces
  4021. Help with 2 questions quickly for exams please!
  4022. Rearranging Equations to y= mx + b
  4023. Difficult Velocity/Travel/Wind problem
  4024. Rolling Without Slipping
  4025. Speed of box attached to spring
  4026. Matrix Transformation - A plane mapping onto itself.
  4027. capacitor, maxwell's equations
  4028. Stopping distance
  4029. radiation calculation confusion
  4030. Finding Twofold Degeneracy
  4031. Dropping a penny off a skyscraper.
  4032. Static friction vs kinetic friction (Very simple question)
  4033. Simple Harmonic Motion
  4034. Solving for linear mass density of a string
  4035. Magnetic Force on Various Sides of Spinning Loop??
  4036. Polarization with three polarizers? Please help!
  4037. Energy physics help: Finding spring constants
  4038. Conservation of linear momentum particle accelerator
  4039. Velocity of CM of Rod if struck below CM...?
  4040. vector and scalars
  4041. Charged Particle Moving in Magnetic Field
  4042. Find work given mass, acceleration, and time.
  4043. Spectrometer
  4044. Potential Energy in Molecules
  4045. Why are gases more viscous at higher temps?
  4046. Angular momentum (left or right movement)
  4047. Finding spring constant by comparing to another spring
  4048. Spring at an angle?
  4049. Voltage drop across a battery, a capacitor and 2 light bulbs
  4050. Induced Magnetic Field
  4051. Thought experiment with two point sources of light
  4052. Dropping marble in space station riddle
  4053. Angular Speed of Tires
  4054. loop of wire is connected to the terminals of a battery
  4055. A current-carrying circular loop placed next to a long straight wire
  4056. increasing the efficiency of a simple electric motor?
  4057. Kinetic Energy in a CD
  4058. Object Thrown Up Vertically - Need the Help of an Expert!
  4059. Static Equilibrium Problem Dealing with Torque
  4060. AC circuit with two components given phase angle
  4061. Velocity in a circular path
  4062. ωxr vs rxω
  4063. Cylinder Rolling Down an Inclined Plane
  4064. Block and Pulley
  4065. Electric charge question
  4066. Suspension cable statics calculus problem
  4067. Find Aphelion of an elliptical orbit given Perihelion and Orbital Period
  4068. Force on 3 current carrying wires
  4069. Pulley Small or Large for a Motor
  4070. Thin ring rolling down a moving ramp
  4071. Tricky Magnetic Field Question... (Proton Enters Magnetic Field......)
  4072. 3 plate capacitor
  4073. Degrees of freedom for a metal crystal
  4074. magnetic field in the middle of the plate
  4075. U-tube filled with water and inmiscible liquid
  4076. Atwood machine acceleration
  4077. Angular frequency of a pendulum
  4078. Calculating the maximum velocity & acceleration of a spring mass
  4079. telescope to see stars
  4080. Finding out the speed of ultrasonic sound waves
  4081. Work Energy Theorem with Kinetic Friction and External Work
  4082. Calculating Force (magnitude and direction) on a proton
  4083. Compute potential differnce between two points due to constant electrostatic field?
  4084. Electromagnetic Induction
  4085. Newton's law of universal gravitation!
  4086. size of star image
  4087. Induction or nothing?
  4088. Average Back EMF Induced in Coil in Loudspeaker
  4089. coulomb's law
  4090. Have Inertia Tensor for Object. Find It for Object after Rotation
  4091. Projectile problem without theta or time
  4092. Particle Motion
  4093. Calculating change in momentum
  4094. misunderstood Thermodynamic question
  4095. Amplitude from a Damped Oscillation
  4096. A bullet through a pendulum.
  4097. Geodesic deviation
  4098. problem about exploding mass
  4099. Displacement of an electron between two plates
  4100. Find the angular width of the central maximum.
  4101. Eletrodynamics Basic
  4102. problems with vectors
  4103. Finding current in a circuit
  4104. Phase of current and voltage in LCR network
  4105. Question on capacitance and electric fields
  4106. Determining the viscosity of glycerol at 20*C using Stokes Law.
  4107. Coplanar forces equilibrium- a rod in a sphere
  4108. Physics Faraday's Law and Induced Electric Fields
  4109. Torque and a Diving Board
  4110. Forces on a Diving board
  4111. scalar product of vectors
  4112. Simple Thermodynamics
  4113. Acceleration problem with friction
  4114. Find magnitude of current to produce magnetic field
  4115. Find magnitude of magnetic field from loop
  4116. rotation, torque, angular momentum?
  4117. Car going up the slope, Power of Engine
  4118. Collision in two dimensions
  4119. Magnitude of cars acceleration
  4120. Point charge voltages
  4121. Static Friction of hollow sphere rolling up incline
  4122. Basic Kinematic to Find Distance
  4123. Need Help Finding the Angle Between Two Vectors
  4124. Velocity of an apple before strikes the surface of a white dwarf.
  4125. Grade 12 Centripetal Acceleration Question- Universal Law of Gravitation
  4126. Voltage created by charged flat plates
  4127. Determine the tension in each wire?
  4128. Finding Applied Force with Free Body Diagrams (Grade 12 Physics)
  4129. Releativity and reference frames. Spaceship traveling faster than speed of light?
  4130. Ok...then since I am wrong then formula for torque is wrong
  4131. How does sin(65)/sin(37) become sin(65)/tan(37)?
  4132. Magnitude of displacement of a harmonic oscillator
  4133. Adjusting Telescoping Antenna Length
  4134. Equilibrium Ladder Question, can get 1st part but not 2nd!!
  4135. Resistance in emf - Faraday's Law
  4136. Frictional force, normal force and coefficient of friction
  4137. what is the period of oscillation of the mass on the spring?
  4138. Simple Charging RC Circuits
  4139. maximum speed of an electron in an ideal solenoid
  4140. forces on a cylinder?
  4141. Transformations of Energy in a Pendulum Type Experiment
  4142. Voltage Question
  4143. A Christmas tree ball hangs from a hook in the ceiling.
  4144. Dynamics, moment of inertia
  4145. Geodesic equation
  4146. momentum
  4147. Circular Motion Problem with a Motorcycle Driving in a Sphere
  4148. Work Energy Theorem problem: Dealing with Gravitational Force on a hanging man
  4149. Find time to evacuate compressed air tank (conceptual verification)
  4150. Light Bulbs in Series vs. Parallel
  4151. How to find the focal length of a lens using radii.
  4152. What is the pressure at 80 m below the surface of the ocean.
  4153. Wave Function Uncertainty
  4154. question involving resistivity using the formula?
  4155. Conservation of Rotational Energy Question
  4156. conservation of energy?
  4157. Finding potential difference across capacitor plates?
  4158. Pulley, Ramp with Moment of Inertia
  4159. Dipole radiation polarization
  4160. Magnetic Field in a rectangular toroid
  4161. Calculating entropy change
  4162. Perfectly inelastic collision - energies
  4163. Bernoulli Equation - Units Question
  4164. Kinematics, finding the displacement and comparing
  4165. forces acting on a falling cylinder?
  4166. Magnitude of Torque on a current loop
  4167. Connect a Battery to a Solenoid - Current through a rectangular coil
  4168. Calculating drift velocity of electrons in a conductor
  4169. LR circuit, book mistake?
  4170. Diving into water: avg F of water
  4171. Compression/longitudinal wave equation
  4172. Conservation of momentum with unknown angles
  4173. Thermodynamics, ideal gas
  4174. Thermodynamics, gas expansion
  4175. Breadboard mania!
  4176. Calculating Coefficient of Friction In the System
  4177. Torques and a Traffic Light
  4178. Center of mass with one object moving
  4179. Energy Dissipated in Loop (Magnetic Field)-- Please Help!
  4180. How to find velocity?
  4181. force between two masses
  4182. How long will it take to fill a tank?
  4183. Hydrostatic pressure in the Bernoulli Equation
  4184. Parallel Resistors Confusion
  4185. Dynamics of Rotational motion
  4186. Induced Current in a Coil
  4187. Double-Slit Interference Problem
  4188. Finding the tipping point (height at which metacentre = center of gravity?)
  4189. Elastic Momentum and Convervation of momentum questions
  4190. Box being pulled across horizontal floor with friction
  4191. Magnetic Field involving solenoids
  4192. weight of an object sliding on an incline
  4193. quantum numbers/ spectroscopic notation
  4194. Calibration of gamma-ray spectra
  4195. Position of particle in infinite potential well
  4196. Force on an electron between two parallel plates
  4197. Forces question get the magnitude of acceleration
  4198. Momentum conservation
  4199. Forces getting acceleration and tension
  4200. Forces and getting acceleration of two objects please help
  4201. Forces, I want to get the magnitude of the acceleration for the following problem ple
  4202. dynamics question-answer (classic)
  4203. Charging and discharging capacitors - current time graph
  4204. Direction of magnetic field - moving charge
  4205. Deriving formula for final intensity of light through three polarizers.
  4206. SHM of a mass with 4 springs
  4207. Force made by a mass falling on the floor
  4208. Centrifugal Force
  4209. Z Center of mass of an ice cream cone
  4210. Linear Momentum Problem
  4211. Messed up joules and newtons in an exam
  4212. Mastering Physics 10.85 - Dynamics of Rotational Motion
  4213. Kinetic Energy/Linear Momentum
  4214. 2-D Vector Problem
  4215. What temperature does Cl2 need to escape Earth?
  4216. Skater. Angular Momentum. Velocity.
  4217. Electric field = 0 at what point on x axis?
  4218. frequency of girl bobbing in swimming pool
  4219. Rotational Kinetic Energy
  4220. Phase Difference for Light Passing Through Two Slabs
  4221. LR Circuit with resistors in parallel
  4222. Calculating velocity at a certain time
  4223. Finding displacement from PE and KE?
  4224. Pivoted rod - impulse applied so no horizontal force on pivot
  4225. Max Harge on a Capacitor in LC Circuits
  4226. Two Physics problems (angular velocity/acc) and Force by a stopper
  4227. Length of soundwave in steel?
  4228. Torque required to stop wheel in 41.2s?
  4229. How to calculate power from angular frequency of LRC circuit
  4230. covariant and contravariant vecotr questions
  4231. Moment of inerta
  4232. Finding angular frequency about the equilibrium position.
  4233. Special relativity - A problem on velocity addition (several increments)
  4234. Angular frequency of a mass between two springs.
  4235. Fluid Mechanics Question -- Pipes and Pumps
  4236. Very quick insulating sphere electric field question
  4237. about V,g,d and λ
  4238. Calculate Delta T expected from E transferred to internal heat of H2O
  4239. Confusion over binding energy
  4240. Having trouble finding impulse
  4241. what is the equation switched capacitors
  4242. Measuring velocity in a pitot-static tube and manometer
  4243. Wave on a string meeting a boundary between areas of different densities
  4244. A problem on time taken by relativistic particles
  4245. Circular motion and centripetal force
  4246. Finding induced emf, number of turns, and flux linkage of coil wound around solenoid
  4247. Wave speed of a stretched string
  4248. What frequency do you hear? Please check my work!
  4249. Is this the Wavelength? (Diffraction)
  4250. a kinematics problem
  4251. Power rating of a heater in the same outlet as a hair dryer
  4252. instrumentation numerical
  4253. Magnetic fields - which direction
  4254. amount of energy rerquired to raise temperature
  4255. Very confused: why is the path difference in double slit interference dsinθ?
  4256. Similar to the swimmer problem:
  4257. Two planets of equal density, what do they share?
  4258. Induced current in a two-loop circuit
  4259. free fall of straight wire in a homogeneous magnetic field
  4260. The back EMF of a DC motor spinning at full speed
  4261. Centre of mass of a pendulum
  4262. Kinetic energy of space probe launched from planet
  4263. Why does the compass turn right when a magnetic field other than the earth is applied
  4264. WHY do vernier calliper works???
  4265. Proving an Inequality
  4266. Electrostatic Forces of an Equilateral Triangle
  4267. Elastic Potential Energy of a Sprin
  4268. 2D Vector Work With Wind and Other Elements
  4269. Energy Problem involving Spring
  4270. Rotational and Kinetic Energy - Down a Hill
  4271. Inelastic collisions in two dimensions
  4272. Kinematics of Rigid Bodies in 3D
  4273. 2011 AP Physics C E&M frq #1 clarification
  4274. Tricky Buoyancy Problem Involving Water Levels
  4275. Momentum collision in two dimensions
  4276. Calculating the wavelength of a laser? (Diffraction grating)
  4277. Force on projectile along rails (Railgun)
  4278. Radioactive Decay - Tricky
  4279. Calculating temperature of Hydrogen gas cloud
  4280. Physics Egg Drop
  4281. Magnetic force on one electron
  4282. Schrodinger and Infinite Square Well.... hell
  4283. Physics impulse and momentum lab help!
  4284. Find the direction of the induced current
  4285. Optics-Critical Angle
  4286. Center of Mass with Cubes
  4287. a simple question, but i dont think my teacher or any of my classmates got it right.
  4288. Pulley Problem Dealing with Torque
  4289. submarine in ocean
  4290. Intenal energy increase in wind of star ?
  4291. Quick Conceptual Question on Lenz's Law
  4292. Simple Harmonic Motion - basic question
  4293. Electric Field- Infinitely long lines of charge
  4294. Calculate the power delivered to each resistor...
  4295. law of induction
  4296. Best material to minimize Impulse?
  4297. Magnitude and direction of magnetic field
  4298. young's modulus by searle's apparatus
  4299. How to find Tension between two boxes
  4300. Deriving the Force on an Infinitessimal current-loop in a Magnetic Field
  4301. Projectile question - X and Y direction
  4302. Confused about radial/transverse and normal/tangential
  4303. Find force on the loop
  4304. A one mark moments question (a see saw,pivot type sum, prolly easy) in A level MCQ
  4305. What is the torque on loop
  4306. Charging/Discharging Capacitor & Magnetic Field
  4307. 1 mark question on application of components and workdone(gravitanal potential energy
  4308. Which describes the magnetic flux through a section of a loop?
  4309. When is the magnetic flux on a section of a closed surface equal to zero?
  4310. EMF Induced on Secondary Coil of a Transformer
  4311. Which one of the nuclei below completes the acceleration with the lowest speed.1mark
  4312. 1 mark question on kinematics, or a stone fallin through air.
  4313. Charges on an equilateral triangle
  4314. What self-induced emf appears in that coil?
  4315. work and energy?
  4316. Radioactive decay question
  4317. Finding the x-component of a force using Coulomb's Law
  4318. Capacitance concentric spherical shells
  4319. Harmonic motion problem
  4320. SHM and Pi
  4321. Step-Up Transformer Conceptual Problem
  4322. Vector addition
  4323. Magnetic Field Induced by Nonuniform Electric Flux
  4324. radial vs tangential electric field lines in a solenoid
  4325. Calculate Heat loss without k (thermal constant)
  4326. a confusion related to Significant figures
  4327. Finding moment of inertia of a pulley
  4328. Find spring constant, unknown projectile mass, vertical spring gun.
  4329. Ampere's Law and Infinite Current Sheets
  4330. Finding image location with concave mirror
  4331. Need help setting up the problem.
  4332. How do I calculate these Uncertainties?
  4333. Current and Electricity Question
  4334. Parametric equations motion problem
  4335. diffraction grating sum, 1 mark mcq question (a level)
  4336. Couple system question
  4337. Will a spring constant always remain the same?
  4338. Relation of resistance to power dissipation
  4339. Charge on droplets
  4340. Normalised 2D coordinates on a surface
  4341. Charges on two small spheres suspended from a thread
  4342. Very easy simple harmonic motion question that I keep getting wrong
  4343. Equilibrium of a rigid body under coplanar forces
  4344. Force Equilibrium problem
  4345. Standing Wave in superposition equation problem
  4346. Refraction of a beam of parallel light in a thick-walled wine goblet
  4347. Another conservation of energy problem(I think)
  4348. Calculating Steady State Heat Transfer
  4349. Basic physics/ wavelength and displacement questions
  4350. Conservation of momentum
  4351. Quantum mechanics eigenstate transitions
  4352. A Haunting question on diffraction grating!
  4353. Conceptual question on diffraction grating
  4354. Bar hanging on 2 cords
  4355. Torque on a sign driving down a road
  4356. Question about voltage sign
  4357. Angular momentum about an Axis and a Point
  4358. Quantum Physics: Heinsburg Uncertainty
  4359. Uniform circular motion question
  4360. general motion of a particle
  4361. Capacitors in a circuit / Calculate total capacitance
  4362. Need Help with double solenoid magnetic field question
  4363. Electromagnetic induction
  4364. Current in a wire
  4365. Confusion about P=F*v!
  4366. Momentum. Kinetic energy lost in the collision.
  4367. Frictionless pulley system: same tension changing masses
  4368. IB Physics SL Simple Harmonics Question
  4369. Baseball projectile motion
  4370. SPH4U University Grade 12 Physics - Coulomb's Law?
  4371. I need to find a velocity for a given t value, from a linear acceleration graph
  4372. Angle Formed on y-axis
  4373. Pendulum with circular motion
  4374. Rotational Velocity and Acceleration
  4375. Students picking apples, 40* ladder on fence
  4376. Find Displacement given force
  4377. Physics: Expansion at constant pressure
  4378. Help me if you can!! Particle physics!! Give it a shot!!! Pleaseee
  4379. Standing waves, frequency, wavelength and speed! D; Help!
  4380. Newton's 2nd Law for Rotation
  4381. Electro dynamics, E/B fields inside wire
  4382. How to draw pulley system diagram to find the relationship between two objects?
  4383. find the speed of a fan
  4384. Friction, Kinetic Energy, & Momentum of a Sphere down an inclined plane
  4385. Applying principle of superposition to draw resultant shapes. Please help!
  4386. Magnetic field on the axis along the plane of loop
  4387. Circular Motion in a Roller Coaster
  4388. highschool physics problems
  4389. increasing area
  4390. Derive equation of trajectory of a body around a fixed body attracted by gravity
  4391. Thermodynamics: Proofs of work done on/by gas during adiabatic process
  4392. Vertical speed of a point attached by two rods to a rotating hinge.
  4393. A derivation that is omitted in Feynman Lectures II
  4394. Is xf=xi +vixΔt accurate?
  4395. Difference between Mass and volume
  4396. Torque/ find the coefficient of friction
  4397. Friction and rollling
  4398. Assistance with projectile motion question
  4399. Help With Physics Terms (Nuclear)
  4400. Thermodynamics: Calorimeter problem
  4401. 2D Elastic Collision Problem
  4402. A Rolling Disc on a Slab
  4403. two springs and the energy question
  4404. quick cross product question
  4405. Conservation of angular momentum pre lab help
  4406. A boy sliding down an incline removes jacket how does this affect speed and momentum?
  4407. Coulomb's Law Question grade 12
  4408. Metal Spheres; Interaction between conductors; induction
  4409. Iwhile standing on a bank you wished to zap a small blue fish out in front of you wi
  4410. Finding the moment of inertia for a specific figure (illustrated)
  4411. The position of a 2.75x10^5 N training helicopter under test is given by
  4412. Finding equilibrium temperature of water and a solid
  4413. Conversion
  4414. Question about Gauss flux??
  4415. Center of Gravity Question
  4416. Static Equilibrium On a Beam Question
  4417. Magnetic Field of a Straight Current Carrying Conductor
  4418. First Year Work and Energy
  4419. rail gun and magnetic field question
  4420. Energy stored within a circuit
  4421. Integration of motion question
  4422. Rectilinear Motion Take-Home Exam - DEAD END!
  4423. polarity of a horseshoe shaped solenoid
  4424. Falling Object
  4425. Time dilation - Lorentz transformation using light clock
  4426. Electric field inside the cavity of a sphere.
  4427. Parallel wires and forces acting upon them
  4428. Need conversion and...specific heat?
  4429. Electric field - multiple choice - Physics Unit 4 Specimen
  4430. Oscillation problem, help!
  4431. Pendulum with two springs and a stick
  4432. Frequency of sound in a pipe question
  4433. Predicting Collisions of 2 objects
  4434. Will the train's cargo slam into the front of the boxcar?
  4435. Trig Calculation Question
  4436. The Slope of a Normal Force vs Applied Force Graph
  4437. Resistance in an octahedron between two points.
  4438. How much heat is released from water into ice.
  4439. Rotational kinetic energy
  4440. Block and tackle and tension forces
  4441. Vector Model of Angular Momentum
  4442. Pion in rest frame and lab frame
  4443. Ap physics questions on basic kinetics and newtons second law
  4444. Newtons second law and kinematics
  4445. Adiabatic Process
  4446. Calculate the speed of a projectile from the angle and maximum height.
  4447. What is the impedance of the circuit?
  4448. Integrating equations of motion
  4449. Latent Heat and phase changes (difficult)
  4450. [Quick] At what capacitance will the current in the resistor be a maximum?
  4451. Wave Velocity & Tension
  4452. Calculate the work done according to the graph.
  4453. Intersection of two Objects
  4454. Newtons law concept question
  4455. Thermodynamics
  4456. Circuit problem
  4457. Physics Question with Protons and Charge.
  4458. temperature and heat matter!
  4459. Homework Help. Rotating platform. difference of acceleration when close to center
  4460. Find the displacement of the underdamped driven mass.
  4461. Verifying information on Archimedes
  4462. Egg Drop Project
  4463. Line integral to calculate work
  4464. Mechanical advantage
  4465. What is the Path Difference: Waves
  4466. What is the wavelength?
  4467. Electronics - Battery voltage & load
  4468. Mystery Circuit Components, Phase Angle, Confirmation and Clarification
  4469. What is the current in Resistor2?
  4470. Hollow cylinder
  4471. magnitude of force within thermally expanding restrained bar
  4472. An insulated cooling sphere
  4473. A mass between two springs-simple harmonic motion
  4474. De Broglie Wavelength of cooled atom in a trap
  4475. Air resistance/velocity problem
  4476. Third Order Lever Problem
  4477. conservation of engery and work
  4478. conservation of engery and work 2.
  4479. Double Helix in Roller Coaster
  4480. interception of a poliece car with speeder from rest
  4481. Force on an iron ball due to a dipole magnet
  4482. Force on a point charge at the tip of a solid uniformly charged insulating cone
  4483. Two Solenoids
  4484. Comet in Parabolic Orbit
  4485. Find Work Done
  4486. Electromagnetism - Cross Product of length and Magnetic Field
  4487. Motional emf, Gaussian flux, and lenz's law help
  4488. pulley dynamics problem 12-205 Hibbeler
  4489. The Heisenberg Uncertainty Principle
  4490. Who can confirm this for me?
  4491. Do you think this is correct?
  4492. Can you confirm the answers?
  4493. finding magnification, object distance from the mirror, and radius of curvature
  4494. Proper Time : Constant Velocity Clock vs Constant Acceleration Clock
  4495. Velocites in Different Reference Frames
  4496. Problem on relativity of angles.
  4497. Extra challenge
  4498. Forms of energy in video?
  4499. Calc-Physics 212: Charge Distribution Geometry of a Circle
  4500. Relativistic momentum and gamma factor - differential equation
  4501. Merry Go Round Problem
  4502. Principal axes for a disc
  4503. volume of gases
  4504. Kinetic Energy, work and force! Sand conveyor problem
  4505. conical pendulum problem..help needed
  4506. HELP! Mass per unit length equation
  4507. Circular motion - Edexcel Past Question (Jan 2010)
  4508. Solving a Problem Using Conservation of Energy
  4509. Variation of 'g' on Earth
  4510. Water in a Hose
  4511. uniform circular motion - 2 dimensional - 2 forces
  4512. Special Relativity 2-D Collision Problem
  4513. Simple Pendulum: Amplitude, velocity, and angular position.
  4514. Couloumb's Law 3 charges on a line
  4515. Couloumb's Law Problem
  4516. Transport theorem, final integral
  4517. Moment of inertia - displaced axis
  4518. Suspended Charged Object in Uniform Electric Field
  4519. Couloumb's Law 3 charges on a line
  4520. Geostationary satellite
  4521. Sound frequency
  4522. Sound Intensity and Power
  4523. Gas Manometer
  4524. Conservation of Momentum - Elastic Collision
  4525. Ampere's Law for current carrying wire
  4526. Charged particle within an electric field
  4527. Physics behind a fan based flying car concept
  4528. Current and Voltage in a transformer
  4529. Continous charge or mass distributions
  4530. Monochromatic Light and a 30-60-90 Prism
  4531. 2D Momentum and Collisions Lab Help Grade 12
  4532. What is the electric field at the point x = 3.5 m, y = 2.0 m?
  4533. Calculating the force constant of spring
  4534. how to define bad of good of a led light
  4535. Find a waves length given the electric field?
  4536. The Kepler Orbits (algebra manipulation)
  4537. statics: a hinge held up by a string with a mass
  4538. Quick!!! Please help! Asap
  4539. 109.5kcal?
  4540. Conservation of Energy
  4541. Energy density in a wire
  4542. A very easy Pendulum.Give me advice!!
  4543. How to sketch graph of u-v-t surface?
  4544. Induced current due to rotating coil
  4545. SUVAT problem
  4546. The slope of a kinetic energy vs. potential energy graph
  4547. Intensity of Light With a Given Power of Through a Polarizer
  4548. Ground state of Potassium and Hydrogen
  4549. Quantum mechanics: Latex and Box Notation
  4550. Angular Momentum of a Jogger
  4551. Acceleration Due to Gravity
  4552. Conservation of Angular Momentum - Two ants on a massless rod
  4553. Electric Field Strength and Potential
  4554. Finding total angular momentum qnumber for 3d4d
  4555. pulley problem
  4556. OCR Physics B Practical Investigation HELP ME PLEAAAASE!
  4557. a ball kicked from a cliff
  4558. velocity of a ladybug relative to the ground
  4559. kicking a ball ( optimal angle)
  4560. Pulleys: Why would my calculated work output be higher than my work input?
  4561. Acceleration in a Weight Machine
  4562. Induced Voltage created on a loop entering a magnetic field
  4563. Physics question dynamics?
  4564. Curve Fitting Data
  4565. Solving a problem using energy and conservative forces concepts
  4566. (Air Resistance) Distance with respect to time
  4567. Electrostatics, conductor infinite sheets
  4568. Capicatance & magnitude of capacitor
  4569. Pain from Horn Sound.
  4570. How to read this equation
  4571. Time to take for water to cool down.
  4572. How to calculate critical speed in circular motion?
  4573. Electron Decay x-rays
  4574. Angle of inclination (using Newton's Laws)
  4575. Relating Sink Time to Hole Diametre- Water Bowls
  4576. Force on a charge on magnetic field
  4577. Time period of oscillation and displacement from O
  4578. Period of rod connected to spring
  4579. Equation For Charging Current In Accumulator
  4580. Inertia of a solid vertical disk about it's diameter
  4581. Velocity in a Spiral Path
  4582. Finding Object Distance and Image Distance
  4583. Antennas causing destructive interference
  4584. Phonons and the Dulong-Petit Law
  4585. What stress needs to be exerted to turn a quart of water into a pint?
  4586. Angular acceleration and angular velocity
  4587. Singlets doublets and triplets
  4588. Finding Potential Energy of a Swing When the Ropes Are Horizontal?
  4589. Moment of the force
  4590. Stiffness (constant) of string/wire relationship to Amplitude/Energy output
  4591. speed of a snowball
  4592. height of pier above water- projectile motion
  4593. Angle of vevtor in component form
  4594. velocity of the bowling ball- projectile motion
  4595. how long is discus in the air and the horizontal distance traveled
  4596. multiplicative sound wave superposition
  4597. fluid mechanics,interesting problem
  4598. Veriticle springs; period and mass?
  4599. air pressure in sound
  4600. Classical Mechanics Questions
  4601. Changing Velocities Questions
  4602. How long would it take for a can of beer to fall over due to quantum tunneling?
  4603. Scaling Heat Capacity for n dimensions
  4604. Resistors in a circuit/ Calculate total resistance
  4605. Relating charge to potential difference
  4606. Equation for Final velocity: Projectile Fired from Earth
  4607. Newton's Laws/ Tension Forces Problem
  4608. deceleration of f1 car
  4609. How to know when to break up equilibrium problems into components, vs torque
  4610. Uniform Circular Motion; Need help with deriving equations.
  4611. Acceleration in an Atwood's Machine
  4612. HELP Please!
  4613. Confused about how inductors work and produce a back EMF?
  4614. Heat of vaporization ( thermal physics) helppp pleasee ?!
  4615. Weight / Satellite above Earth
  4616. Angular kinetics problem
  4617. Weight/Satellite Above Earth's Surface
  4618. Diffraction Grating and Maximums
  4619. Are the following equations inversely or directly proportional to frequency?
  4620. Bird on a wire
  4621. Maths - a proof question on the nature of roots of quadratic equations
  4622. Pendulum within a car.
  4623. Baseball Acceleration Question
  4624. Tuning Circuit for AM Radio
  4625. Determining uncertainty of the period T
  4626. Probably a very novice question...
  4627. Gauss's law in action
  4628. Conservation of Angular Momentum - Man firing a bullet on a metal rod at an angle
  4629. Topic for Introductory physics project/case study
  4630. frame of reference, special relativity PLEASE HELP!
  4631. Help with this pulley question
  4632. Centripetal acceleration changing radians/s into rpm's
  4633. relative velocity and rockets
  4634. Need some guidance through a dynamics problem.
  4635. initial velocity of soccer ball and length of time in the air- projectile motion
  4636. find the range of the golfball and the maximum height reached
  4637. Initial Vertical Velocity of a non - horizontal projectile (trebuchet)
  4638. Static Electricity, Spheres question
  4639. Gamma radiation decay question.
  4640. how far will the player be if she continues to run after the ball
  4641. would the baseball clear the fence- projectile motion
  4642. Boolean algebra question
  4643. Simple Harmonic Motion and Springs
  4644. Equilibrium of bicycle going in a circle
  4645. distance the dog has to travel to catch a ball - projectile motion
  4646. LRC Circuit Problem
  4647. Determining the torque and angular momentum of a bullet due to gravity
  4648. Find the displacement.
  4649. Horizontal spring, mass and nonconstant friction
  4650. Gravitational Fields Problem: Find the fraction ΔgM /g
  4651. Help understanding the mathematical expression of product of Inertia
  4652. graphing multiple sound waves
  4653. ray through a prism
  4654. Uniform Circular:Motion What happens to the accuracy as the frequency as it increases
  4655. Expanding Loop: Induced EMF?
  4656. Humphrey the Singing Whale and his mate Matilda.
  4657. many failed attempts on this displacement/acceleration/velocity problem. please help
  4658. No idea how to find applied forced based on kinetic friction and acceleration.
  4659. Supersonic plane at mach 3
  4660. bernoullis principle and lift on a wing of plane
  4661. pressure exerted by 1 leg of a chair.
  4662. Force to move a bar in a magnetic field...
  4663. Factors that would increase magnetic flux through a coil?
  4664. work and frequency caused by mutual potential energy
  4665. Simple Harmonic Motion find Mass
  4666. Vector force& and Optic question
  4667. Energy conservation problem
  4668. Understanding Potential Energy
  4669. How far from the left end should the fulcrum be placed?
  4670. Why a two-slit experiment with electrons is evidence electrons are waves?
  4671. Potential energy
  4672. How to find the wavelength of a particle with mass?
  4673. A uniform solid cylindrical log begins rolling without slipping down a ramp that rise
  4674. Vector Projectile Question
  4675. Rotational motion
  4676. A child slides down a ball of ice.
  4677. Dynamics question. inclined plane
  4678. Moment of intertia of a W figure
  4679. Gravitation Field Problem With Equal Masses
  4680. Tortoise vs Hare
  4681. Measuring Voltage and Current
  4682. Simplification about the reflection of waves at a discontinuity.
  4683. precession and its everyday applications
  4684. Help me understand please (short one!)
  4685. ~~~~URGENT, Question about mechanics~~~~~~~
  4686. Few Problems (Waves, Elasticity, SHM)
  4687. can any of you guys help to understand kinetic energy???
  4688. Newton Law Gravitation - Multiple choice question??
  4689. D.C voltage and capacitors
  4690. Newtons third law, elevator question (free body diagram)
  4691. Are there different kinds of series circuits?
  4692. distance of the centre of gravity
  4693. motorboat relative motion
  4694. Work, Fluid, Pressure
  4695. a ray through a prism
  4696. Electric fieldline drawer
  4697. How do you calculate the positions of minima and maxima in 2 slit pattern for elect..
  4698. Change in entropy as gas expands?
  4699. Electric potential energy of the two protons?
  4700. Cigar-shaped Charge Distribution
  4701. How to find the wavelength of a Photon with no mass?
  4702. Reflector or Absorber?
  4703. Inelastic Collision with Pendulum and Ball; finding force and work
  4704. truss/equilibrium?
  4705. at what angle will a box start to slide
  4706. Calculating uniform acceleration using two time intervals and its known distances
  4707. Work due to static friction?
  4708. Moment of Inertia for variable density cylinders?
  4709. Spherically Symmetric Charge Distribution
  4710. Gauss' law
  4711. Finding Work Done by Compressing A Spring
  4712. Work-Energy Confusion
  4713. Find the angular velocity
  4714. Old exam question
  4715. Period for SHM of a block on a spring shot by a bullet
  4716. Does anyone know an equation for Δn/Δt for a two-state system?
  4717. Distance between two bright fringes
  4718. Speed of a proton question - Need Help!~
  4719. waveform formula
  4720. Having trouble understanding the relationship between these expressions
  4721. Finding the time it takes for light to pass an object
  4722. Phase difference in a two slit interference problem
  4723. Kepler's Law Program With Planets
  4724. Kinetic Energy's Effect on Electron's Radius in Magnetic Field
  4725. **Bonus Question** Gravitation
  4726. A simple momentum question
  4727. Vector diagram - please check
  4728. can any of you guys help to understand coefficient
  4729. Torricelli Barometer and atmospheric pressure
  4730. Average Speed Of a and b where d and t is not given
  4731. Parallel Plate Capacitor Conundrum
  4732. Analysing a pulley block system
  4733. Resistance to illuminance conversion
  4734. Length contraction - problems with transformation and time
  4735. Length of string on instrument to produce specific frequency
  4736. Adiabat Process - with pV cycle
  4737. Closing a door by throwing something at it
  4738. tangential acceleration - radial acceleration
  4739. Archimedes
  4740. Fluids
  4741. Buoyant force
  4742. Periodic Motion - Spring hung vertically from ceiling.
  4743. Maximum possible amplitude of oscillation
  4744. Plotting Multiple 2D graphs in mathematica
  4745. projectile motion
  4746. Kinematics, 2 questions
  4747. find initial velocity and time in the air- projectile motion
  4748. distance between player and ball- projectile motion
  4749. What speed will the ball hit the ground?
  4750. Tangential and radial acceleration
  4751. Distance Block Slides Up Ramp
  4752. Electric field, hollow sphere
  4753. Magnetostatics multiple choice
  4754. Static equilibrium problem
  4755. Determining velocity of objects after collision
  4756. A conceptual question about the force of light waves when reflected
  4757. Orbits and Kepler's Laws Question
  4758. Spectrum & energy level of neutral hydrogen
  4759. forces of static friction question
  4760. question about calculating electric field made by finite point charges
  4761. Wavelength used in interference
  4762. Ratio of distance before bar slides
  4763. Total Internal Reflection
  4764. [Concept] Why is potential 0 when electric field isn't?
  4765. Snell's Law and Lasers
  4766. Finding the kinetic energy of an electron
  4767. finding the electric field vector along the bisector
  4768. Direction of a positive charge's velocity in an electric field.
  4769. Ramp, block, and elastic potential energy
  4770. highschool physics problem...
  4771. Reaaranging a Bernoulli Equation.
  4772. Projectile motion - ball in circular motion
  4773. Gravitational Potential Energy and Work Energy Theorem
  4774. Biot-Savart law question help
  4775. A Moveable Cross wire and a Function of Time
  4776. Finding the gravitational field of a rod
  4777. Potential energy of a system (gravity)
  4778. Damped circuits
  4779. Infinite number of polarisers (Malus's law)
  4780. Circular Motion,Uniform motion
  4781. Rlc circuit with ac current source
  4782. Circular Motion,Uniform motion
  4783. What is the width? Please take a look at my work!
  4784. what is the larmor radius of an electron in the inner van allen belt?
  4785. Elementary kinetics problem - Using calculus is different result from algebra
  4786. The weight of an astronaut during take off?
  4787. Hey I was wondering why I got this problem wrong on magnetic fields
  4788. Frequency of spring
  4789. electrostatics
  4790. Resistors in Series
  4791. Otto cycle problem
  4792. RLC circuit problem set
  4793. DeMorgans Law using NAND gates
  4794. Capacitors & Electric Fields and how they change relative to each other
  4795. Can you not separate a scalar into x and y components?
  4796. Projectile Motion with displacement and time
  4797. Find the direction of the missing vector?
  4798. What is the direction of the induced current in the loop for each situation?
  4799. Find the EMF in the loop as a function of time.
  4800. Amplitude of horizontal mass-spring system
  4801. Two carts with springs attached to their fronts collide, no spring constant given
  4802. Finding B field within solenoid.
  4803. Lenes, PHYSICS
  4804. Force on parallel plates at a given voltage
  4805. Electric Potential of a Cylinder using Poisson's Equation!
  4806. Energy and Velocity
  4807. Appropriate arrangement of light meter circuit with LDR and resistor question:
  4808. Working out experimental periodic time from a wieghted spring in s.h.m
  4809. I have a homework question on relativity which i can't figure out, i'd like some help
  4810. thermal expansion of brass and iron rings
  4811. Diffraction grating, angular with of the intensity peaks to the first maximum
  4812. What is the best way to calculate the maximal speed of a beta particle
  4813. How in a series circuit do the components know how much of the "electricity" to use?
  4814. Thermal Properties - Specific heat.
  4815. Basic Atomic Question
  4816. direction of force?
  4817. Energy required to convert ice to steam ?
  4818. What should be squared?
  4819. *~* Speed attained from a trebuchet *~*
  4820. Force on charge inside a conductor
  4821. Magnitude of the Angular Velocity of the Earth in a Circular Orbit Around the Sun
  4822. Turning Off Pauli Exclusion Principle
  4823. Find total magnification for a system of 2 converging lenses?
  4824. can anyone help me slove this question?
  4825. A ball rolls in a bowl find the disantce it goes up to.
  4826. Find the length of one day if the polar ice caps melted
  4827. light attracted to earths gravity
  4828. Help with a volume expansion problem
  4829. oscillating velocities, and energy
  4830. Work-Energy Problem
  4831. Hall potential difference
  4832. Backwards Design for Roller Coaster: Projectile Motion
  4833. Velocity, Force of Friction, and Total Energy in a System Question
  4834. Relativity: Rocket shoots a bullet straight down
  4835. Finding the largest angle from the central maximum (single slit diffraction)
  4836. When light reflects from a thin film back toward the source, what is the path length?
  4837. How to determine phase constant?
  4838. AC current, conceptual question, the difference between Iaverage and Irms?
  4839. Finding COM, and inertia please help my answers don't make sense??
  4840. Calculate the relative error of two complex numbers
  4841. Does adding cold mass to a flow increase or decrease macroscopic kinetic energy ?
  4842. Which describes the interference at P? (Multiple Choice)
  4843. Dipoles and electric field expressions
  4844. Current and inductor
  4845. Conserved Energy in a moving frame of reference
  4846. Question on Thermal Physics. [it feels impossibly difficult to me]
  4847. SHM Varying spring constant
  4848. magnetic field at a point due to a curved wire.
  4849. Magnetic field affecting an alpha and a beta particle.
  4850. Lenz law wire and expanding loop
  4851. Finding Spring with kinetic friction involved
  4852. Work with tension and angles problem
  4853. Nuclear u-235 and u-238 isotope half life question
  4854. speed at the bottom of the track
  4855. A gamma-ray photon produces an electron-positron pair, each with a kinetic energy of
  4856. Photons of energy 12 eV are incident on a metal. It is found that current flows from
  4857. To what maximum angle, measured from vertical, does the rod rotate when hit will a ba
  4858. What's the equivalent resistance of this circuit?
  4859. Deflection due to Magnetic Field
  4860. Simple harmonic motion
  4861. physical pendulum
  4862. Mechanics (Components of Acceleration)
  4863. Power Loss with and without Transformers
  4864. Impulse on a ball
  4865. Finding initial velocity given max height and distance only
  4866. Find distance proton moves between adjacent turns of helix
  4867. Kinematics problem - struggling with my calculus
  4868. Force between two uniformly charged identical rods
  4869. How to find initial speed of something without time or acceleration
  4870. Electric field
  4871. Oblique Collisions
  4872. Motion in a plane
  4873. How can i get an initial speed without acceleration or time?!?!
  4874. Little help in mass on a spring
  4875. behaviour of a ping pong ball dropped in a can full of water.
  4876. Centripetal Force Question
  4877. Calculate the coefficient of friction of a box sliding down a hill?
  4878. Sub 1G - G Forces Modeling
  4879. Does a stationary electron in magnetic field experience Lorentz force?
  4880. Velocity Ratio and Efficiency
  4881. Tension in string of objects connected question :o
  4882. Calculating percentage uncertainty for young's modulus
  4883. Modelling Complex Systems - Topic selection
  4884. Relfected wave equation for free and fixed end
  4885. Mechanics--Angular Motion and Conservation of Energy
  4886. Why wire experiences force in magnetic field, when net charge is zero.
  4887. Uniform electric field
  4888. Finding an expression for torque
  4889. An object is undergoing simple harmonic motion
  4890. Topics / thin film question
  4891. Inclined Glass Wedge Diffraction - Help !
  4892. Surface Charge Density
  4893. Interference Maxima and Newton's Rings (Please help with trig!)
  4894. Dimensional analysis - quantum and classical lengthscale ratio
  4895. Damping constant
  4896. Solving for Intensity of Light Through a Polarizer
  4897. Spinning object losing mass implies torque?
  4898. Find tension and angle
  4899. SHM involving a spring
  4900. Conservation of Energy Problem with spring
  4901. Different emf's in parallel
  4902. Mechanics statics problem
  4903. Combining conservation laws (momentum and energy)
  4904. Conservation of Energy with Spring and Incline (Diagram Included)
  4905. Rolling Sphere Oscillating on Spring
  4906. Moment of Inertia in Equilateral Triangle
  4907. Inductance/unit length of solenoid
  4908. Find electric field
  4909. Resistance in a transformer
  4910. Rotating Square Loop in Constant B-field
  4911. Conservation of Energy, Velocity, Ramp, Angle
  4912. equation for velocity
  4913. Another Tension problem
  4914. Simple Harmonic Motion: Position, Velocity, & Acceleration
  4915. 2 Mirrors and Lenses Problem
  4916. insulating sphere inside a hollow, conducting sphere (electric fields, Gauss's Law)
  4917. Need help finding spring constant from volume, area, temperature and distance
  4918. Triangle plane surface 2m base and 3 height
  4919. How fast must this star be moving?
  4920. Elasticity and Young's Modulus
  4921. Displacement of ball bearing using conservation of energy
  4922. Time Dilation at very slow speeds.
  4923. comparison b/w work done in adiabatic & isothermal processes
  4924. Electricity
  4925. Enthalpy change for an ideal gas
  4926. mass on a spring
  4927. Mechanics question
  4928. Disk rolling down a hill with no sliping
  4929. Moment of inertia of disk about off centre axis
  4930. Gravitational Acceleration (Gauss law)
  4931. Work and Energy (snowmobile up- vs. downhill)
  4932. Waves problem
  4933. *URGENT* Elastic potential energy with box going up an incline.
  4934. projectile motion basic question
  4935. Simple Mass Defect Calculation
  4936. Simple mechanics problem
  4937. Circular Motion,Uniform motion in Vertical Circles
  4938. gravity on the human body
  4939. How to Calibrate a Catapult?
  4940. Thermodynamics, maximum work
  4941. Easy Physics Concept but I cannot understand..
  4942. Trignometry Identities
  4943. Friction of an object on a moving board
  4944. Change of Entropy Problem
  4945. Unstable and stable equillibrium positions
  4946. Ideal Gas Law
  4947. U-tube has oil introduced
  4948. (Re-Answered) Spacetime interval homework question?
  4949. Question dealing with ramp and friction. Need help
  4950. Car of mass m travelling down a motorway
  4951. Two train cars being coupled on tracks
  4952. Help finding the components of acceleration of a block on a wedge on a turntable.
  4953. Buoyancy, Volume, Mass..Please Help!
  4954. Density of electrons in a metal (electricity)
  4955. Static equilibrium questions
  4956. Potential energy of two protons
  4957. Pressure and density
  4958. Wheel pivoted about a frictionless axle - moment of inertia, force of axle
  4959. Parallel plate capacitor
  4960. electric potential energies
  4961. Resistor cube
  4962. Total Internal Reflection: Finding the angle?
  4963. Tension angle
  4964. Maximum current through resistor in a coil of wire with two resistors in parallel
  4965. Resistance in RLC circuit
  4966. Electric Field
  4967. Relating radius and angular freq of an rotating object
  4968. Density of Block Submerged into Swimming Pool
  4969. Classical thermodynamics problem
  4970. Relationship between Kinetic Energy and Linear Momentum.
  4971. Buoyany and change in volume underwater
  4972. Positon Vector
  4973. solar panels
  4974. Elliptic orbit of a Satellite
  4975. Determine Mass from Net Force, distance, and velocity
  4976. scattering: impact parameter
  4977. Determine Va-Vb and the magnitude/direction of Ea-Eb
  4978. Mechanics problem
  4979. Help with Acceleration question
  4980. Could given function represent a travelling wave?
  4981. Error Calculation in Multiplication of two measurement points
  4982. Induced EMF on a moving rod next to a line of current.
  4983. Ramp with block dealing with friction
  4984. I can't get the concept of electromagnetic induction in a homogenous magnetic field.
  4985. The current in a solenoid
  4986. New mass moment of inertia of an object after rotation
  4987. Double Slit Experiment - White Lite & Minimum Angular Displacement
  4988. Determining the direction of electric field flow and the sign on potential difference
  4989. Conservation of Angular Momentum
  4990. Square Loop Oscillating in Magnetic Field
  4991. Help finding friction force of block moving across horizontal atwood's machine
  4992. Double-slit experiment (path length)
  4993. E = ?
  4994. angular rotation problem
  4995. Temperature change with sliding a crate
  4996. Electrical Potential at point Y between 2 point charges
  4997. *Simple conversion probelm - Converting 1.08 x 10^8 dm^3 to m
  4998. Time From Slipping to Rolling Motion
  4999. Which source is more intense?
  5000. how can i find the acceleration for this constraint?