Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
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Post-lab tension problem: verify answers to Q1 and Q2, stuck on Q3
- Habibrobert
- · Replies 1 ·
QM approximation (electron within nucleus, Griffiths 4.45b
- Saraphim
- · Replies 6 ·
Equivalence between 2 solutions
- CAF123
- · Replies 13 ·
Circular Motion: angle that the airplane makes with horizon?
- captinkareem1
- · Replies 1 ·
Finding Acceleration of Gravity for Springs Without a Given K
- Luna413
- · Replies 1 ·
Whats the best way to set up a table so it is more stable?
- Jordi1986
- · Replies 1 ·
Optics Problem: Solving for Refraction on a Spherical Surface
- thunderhadron
- · Replies 2 ·
Solving an Optics Problem: Convex Lens, Plane Mirror, and Virtual Image
- thunderhadron
- · Replies 2 ·
What is the Half-Life of a Discharged Capacitor?
- MegaDeth
- · Replies 1 ·
Creating a ramp function to filter earthquake chirp data in MATLAB
- Luongo
- · Replies 2 ·
Statics Question: Finding resultant force and orientation
- Chandasouk
- · Replies 1 ·
Mass of object (wave nature of matter)
- quicksilver123
- · Replies 4 ·
Magnetic fields from 3 current carrying wires
- vagabond260
- · Replies 5 ·
Electric Potential and Wave Nature of Matter
- quicksilver123
- · Replies 2 ·
Finding Horizontal Momentum of Cannonball
- elmosworld403
- · Replies 8 ·
Magnitude of Initial velocity of Spacecraft
- dragon18
- · Replies 5 ·
Estimating the vibrational frequency of Hydrogen molecule
- stevenytc
- · Replies 2 ·
Electric Field of a Spherical Insulator
- Stealth849
- · Replies 5 ·
Moving three points infinitely away
- phunphysics2
- · Replies 2 ·
Projectile Motion from a given height
- qwerty101
- · Replies 13 ·
What is the net electric force on the charge at the origin?
- sushi362
- · Replies 4 ·
Signs of Moment Components in Shaft Coupling Analysis
- aero_zeppelin
- · Replies 18 ·
Rocket Problem: Determining the amount of fuel burned
- Ockham
- · Replies 4 ·
Horizontal acceleration of a 7.20 kg block with two applied forces
- dragon18
- · Replies 8 ·
Solving the Helmholtz Equation for a Point Source
- bladesong
- · Replies 8 ·
Zero point in the electric field
- Colts
- · Replies 1 ·
Why does a support force have a horizontal component on a slope?
- question dude
- · Replies 5 ·
When and where do the cars meet?
- CollegeStudent
- · Replies 7 ·
Melting a snowball by throwing it at a wall
- AbsoluteZer0
- · Replies 4 ·
Simple problem about relative motion.
- ParrotPete
- · Replies 1 ·
When should I use a Taylor expansion to approximate a formula?
- StephenD420
- · Replies 1 ·
Optics, refraction at spherical surface
- Saitama
- · Replies 2 ·
Finding a plane's weight and horizontal acceleration at takeoff
- cbchapm2
- · Replies 3 ·
Conservation of angular momentum about different points on a rod
- Saitama
- · Replies 13 ·
Find the Work Done and the Heat Transfer
- Northbysouth
- · Replies 2 ·
How much does 1m^3 oxygen at 10 bar weight at 0 degree celsius?
- oeei
- · Replies 1 ·
Determine Velocity at each second
- CollegeStudent
- · Replies 4 ·
Is angular momentum completely independent from linear momentum
- NANDHU001
- · Replies 2 ·
Why do some chords sounds pleasing while others do not?
- Nathew
- · Replies 12 ·
Velocity needed to hit a moving target
- Becky26
- · Replies 1 ·
Calculating Take-Off Speed Using Newton's Third Law
- Bostonpancake0
- · Replies 4 ·
Circuits - Variables dependent on R?
- pyroknife
- · Replies 18 ·
Find Mass Flow Rate and the Exit Flow Area
- Northbysouth
- · Replies 3 ·
Finding satellite coordinates when x=0 in elliptic orbit
- sapz
- · Replies 3 ·
Please could you check this working for me?
- lioric
- · Replies 4 ·
Please could you checkif i got the 2d collisions right?
- lioric
- · Replies 5 ·
Vector Addition? Which Vectors Do I Draw and Where?
- Stanc
- · Replies 1 ·
Strength and Direction of Electric Field
- TheCarl
- · Replies 3 ·
Particle moving under F(r) = -Ar³ central force
- sapz
- · Replies 2 ·
Superposition of Harmonic Waves
- azolotor
- · Replies 2 ·
Electricity with conservation of energy involved.
- -Entropy-
- · Replies 1 ·
Two forces applied to car, direction?
- cbchapm2
- · Replies 2 ·
Bio-Savart Law, current through wire in semi circle
- arrowface
- · Replies 2 ·
Finally, discuss some physical limitations that might
- Jamin2112
- · Replies 8 ·
What is the Velocity of a Frictionless Car Passing Through Two Photo Gates?
- CollegeStudent
- · Replies 4 ·
Yo-yo rolling without slipping when pulled by its axle
- PhizKid
- · Replies 31 ·
Proton Suspension Between Horizontal Parallel Plates: Charge & Voltage
- lizaliiu
- · Replies 6 ·
How Does Gauss' Law Apply to a Cylindrical Shell Surrounding a Charged Line?
- Stealth849
- · Replies 10 ·
What is the force applied to a moving object?
- Robertoalva
- · Replies 2 ·
Force between two charged spheres hanging from a string
- AmagicalFishy
- · Replies 7 ·
I don't have a clue how to find the coordinates
- lioric
- · Replies 17 ·
Where Will the Plane Be When the Package Hits the Ground?
- Yosty22
- · Replies 1 ·
Finding y in a kinematics problem
- Voltrical
- · Replies 4 ·
Circuits Question - Voltage and current in an inductor circuit
- GreenPrint
- · Replies 2 ·
Insulated Copper Block Heated to 60 Celsius
- Northbysouth
- · Replies 1 ·
Trying to solve an elevator problem
- Robertoalva
- · Replies 9 ·
How would I go about graphing a momentum experiment? (Design Lab)
- Owatch
- · Replies 6 ·
Find the Mass of the Air, and the Work and Heat Transfer
- Northbysouth
- · Replies 1 ·
Capacitors/Current/Ohm's Law - Please help I'm so confused
- riseofphoenix
- · Replies 1 ·
(Easy) Finding initial velocity from uniform acceleration
- 2k8bomb
- · Replies 9 ·
Classical Mechanics: 12N Block on Wall - Will it Move?
- Bostonpancake0
- · Replies 4 ·
Relation between the two Radii Rf and Ro
- OONeo01
- · Replies 16 ·
Finding time given average velocity
- canucks81
- · Replies 4 ·
Electric field in a couple of different cases
- LiftHeavy13
- · Replies 1 ·
Mass whirling on table pulled by string through center
- PhizKid
- · Replies 35 ·
How do I calculate the drag force on a motorboat accelerating from a dock?
- Robertoalva
- · Replies 7 ·
Volume using Compressibility Factor
- MechE2015
- · Replies 1 ·
Calculating Amount of Ice to Cool Tea to 65°C
- erok81
- · Replies 8 ·
Molecule collisions in an Ideal Gas
- derravaragh
- · Replies 5 ·
Vertical velocity when jumping off a 2.6 m diving board
- newgirl
- · Replies 9 ·
What is the skis co-effecient of kinetic friction with the ice?
- Bostonpancake0
- · Replies 9 ·
Radii of eqiuipotential surfaces of a charged metal sphere
- RoosterCancer
- · Replies 2 ·
Resistance in a series / parallel?
- dolpho
- · Replies 11 ·
What is the total flux flowing through a spherical Gaussian surface?
- CM Longhorns
- · Replies 1 ·
Electrostatic force on a parallel plate
- serverxeon
- · Replies 3 ·
Determine the Acceleration of Collar B as a result of Collar A
- Northbysouth
- · Replies 1 ·
Pressure and melting point at bottom of 1000 m ice cap
- MechE2015
- · Replies 4 ·
Finding the Initial Rate of Gas Leakage from a Small Hole in a Cubic Container
- vmedica
- · Replies 1 ·
Off center circular motion (polar coordinates)
- Astrum
- · Replies 3 ·
What Forces Act on a Ball Attached to a Massless Rod in a Vertical Loop?
- bd2015
- · Replies 3 ·
Determining the oscilation of a ruler resting on two spinning cylinders
- daffy
- · Replies 1 ·
Vector Displacement Magnitude Calculation
- kelli
- · Replies 1 ·
Finding the Angle of Rainfall for a Driving Car
- burton95
- · Replies 6 ·
Parametric equations -> acceleration
- burton95
- · Replies 1 ·
How to derive duffing equation for a particular system?
- great_sushi
- · Replies 7 ·
Calculating drop in gas pressure
- Cardigan9
- · Replies 1 ·
Work done by gas expansion on piston
- CAF123
- · Replies 10 ·
Deriving the number of stars as a function of flux and bolometric magnitude.
- Nekoteko
- · Replies 14 ·
Finding source voltage in RLC circuit with known impedance
- dan2188
- · Replies 1 ·
Solved: Kinematics Problem: Final Velocity
- aaronfue
- · Replies 5 ·