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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EM , magnetic field at centre of a carrying circular loop
- binbagsss
- · Replies 6 ·
[Statistical Physics] Probability of finding # photons in the mode
- Flucky
- · Replies 7 ·
Spin Angular Momentum - Bullet hitting bottom of a thin rod?
- mintsnapple
- · Replies 1 ·
Find Current at Point T in Circuit
- nikolafmf
- · Replies 4 ·
Convert Joules to Calories - 1 cal = 4.184 J
- olop4444
- · Replies 2 ·
Magnetic field halfway between inner and outer edges of toroid
- swashbuckler77
- · Replies 2 ·
Finding the Normal Force on the Rod of a Paper Roll
- student34
- · Replies 9 ·
Calculating lattice spacing of silver from density
- Yosty22
- · Replies 1 ·
What is the role of torque in rotational motion?
- eterna
- · Replies 5 ·
Newton's first law and projectiles questions
- emma934
- · Replies 1 ·
Negative sign in voltage equation
- baby_1
- · Replies 1 ·
Ratio of work done using pulley
- negation
- · Replies 3 ·
Temperature rise after collision
- savaphysics
- · Replies 3 ·
Rotational Energy, Moment of Inertia Problem
- chongkuan123
- · Replies 6 ·
How Do You Calculate Acceleration from Zero to 25 m/s in 30 Seconds?
- HighSchooler
- · Replies 1 ·
Determine the magnitude and direction of forces
- imiuru
- · Replies 12 ·
Kinetic energy dissipated during inelastic collsion
- jdawg
- · Replies 4 ·
How to tell the difference between reversible and irreversible process
- PhyIsOhSoHard
- · Replies 5 ·
Archimedes Principle Problem: Floating Object
- AMacias2008
- · Replies 2 ·
Vectors and Components-Part Two
- Medgirl314
- · Replies 20 ·
Calculating the change in entropy, did I calculate correctly?
- PhyIsOhSoHard
- · Replies 1 ·
Probability of counts from the counting rate of a radioactive sample?
- carnivalcougar
- · Replies 3 ·
How Does a Spring's Work Relate to Its Stretch and Constants?
- uestions
- · Replies 3 ·
Voltage across two capacitors when one discharges through the other
- physicsboy1
- · Replies 3 ·
The continuity equation in electromagnetism
- physiks
- · Replies 13 ·
EMF in a square loop due to magnetic field from an infinite wire
- Loopas
- · Replies 10 ·
Finding missing resistances and voltages in series-parallel circuit
- pebbles3
- · Replies 4 ·
Change in gravitational potential energy for a slender
- zeralda21
- · Replies 3 ·
Conservation of mechanical energy question
- jgray
- · Replies 1 ·
The Hot Big Bang Model and supporting evidence
- cakeislife
- · Replies 1 ·
Why is the moment arm length positive when I get negative?
- negation
- · Replies 5 ·
Magnetic field of a wire current surrounded by an aluminum tube
- FishStik
- · Replies 3 ·
How Do You Calculate the Angular Momentum of a Rotating Bat?
- Exustior
- · Replies 2 ·
Does Constant Engine Power Guarantee Constant Acceleration?
- jim_ringo
- · Replies 9 ·
Mass attenuation problem, protecting the lunar base against radiation?
- carnivalcougar
- · Replies 4 ·
De Broglie Wavelength Thought Problem
- FaraDazed
- · Replies 6 ·
How Do You Calculate R and C for a Series Impedance of 500∠-36.1° at 10kHz?
- zealeth
- · Replies 1 ·
Amount of energy lost to friction due to change in rotational inertia
- negation
- · Replies 1 ·
Electrical Charge Distribution on a Metal Teapot
- 16Candles
- · Replies 2 ·
How Does a Variable Air-Filled Capacitor Achieve Maximum Capacitance?
- karokr94
- · Replies 5 ·
Different conversion for angular momentum
- negation
- · Replies 9 ·
Chemical potential for van de Waarls gas
- Dassinia
- · Replies 1 ·
Einsteinian Time vs Newtonian Time
- seeldoger47
- · Replies 2 ·
Calculating Efficiency of an Engine with Moving Piston
- edanzig
- · Replies 1 ·
Given a change in internal energy, how can I find the temperature
- mp0295
- · Replies 1 ·
Vectors and Components-Part Three
- Medgirl314
- · Replies 28 ·
Is Work Meant to Be Positive and Heat Negative During Ethanol-Water Mixing?
- AXidenT
- · Replies 2 ·
Angular Momentum/Rolling Multiple Choice
- pietastesgood
- · Replies 9 ·
Find relativistic momentum of electron given kinetic energy.
- oddjobmj
- · Replies 6 ·
Three girls pull a sled. Determine the acceleration.
- Natko
- · Replies 5 ·
Calculating velocity of water flow form tap
- jannx3
- · Replies 2 ·
Ratio PV/RT dieterici's equation
- Dassinia
- · Replies 4 ·
Finding velocity of particles in a uniform magnetic field
- ILstudent122
- · Replies 2 ·
Charged particle entering velocity selector
- britt
- · Replies 1 ·
Conservation of Four-Momentum in Inertial Frames
- brainpushups
- · Replies 4 ·
Charged straight wire Electrostatics
- Lucky7
- · Replies 4 ·
How to Model Projectile Motion with Air Resistance?
- Maxo
- · Replies 22 ·
How Fast Do EM Waves Travel in Ferromagnetic Materials?
- FaraDazed
- · Replies 2 ·
Light Refraction Problem - Snells Law
- FaraDazed
- · Replies 2 ·
String with fixed slope constraint: reflected and transmitted power
- N00813
- · Replies 8 ·
Damped simple harmonic motion experiment and questions?
- cakeislife
- · Replies 8 ·
30,000 fleas jumping off an elephant
- owtu
- · Replies 5 ·
Acceleration of Protons in Magnetic Field and Induced Electric Field
- cesaravila
- · Replies 1 ·
Normal force and applied force for accelerating a crate with friction
- santoki
- · Replies 3 ·
Heat Transfer Problem: Finding Temperature Difference in Insulated System
- LHC_23
- · Replies 1 ·
Newton's Laws of Motion Problem
- rajumahtora
- · Replies 2 ·
Forces - A block slides upward on a rough, vertical wall
- santoki
- · Replies 16 ·
Angular Acceleration and Radius
- Kavorka
- · Replies 3 ·
Harmonic Motion of Oscillating Particle
- MD_Programmer
- · Replies 1 ·
Finding Sliding Distance SS = 5.068 m
- bj5110
- · Replies 3 ·
How Would a Halved Sun Mass Alter Earth's Orbit?
- AdkinsJr
- · Replies 2 ·
Force of friction on a curved road
- stunner5000pt
- · Replies 1 ·
If the curl of a vector field is zero, what can we conclude about it?
- kritisk
- · Replies 1 ·
Why Does a Bicycle Wheel's Angular Momentum Point West When Traveling North?
- edanzig
- · Replies 3 ·
Semiconductor diode (graph quesiton)
- darksyesider
- · Replies 1 ·
Kirchhoff's loop rule with battery, 5 resistors, and internal resistance
- Potential123
- · Replies 1 ·
Linear/angular Momentum / tripping / conservation
- timarli
- · Replies 3 ·
Determine magnetic field of a bar magnet
- britt
- · Replies 1 ·
Induced EMF in metal loop near RC circuit
- neemer
- · Replies 6 ·
Find Current in a Solenoid Given Magnetic Field and Velocity
- elitepro
- · Replies 3 ·
Car changing speed around a corner - find tangential and radial accel
- Phys121VIU
- · Replies 4 ·
Using the Doppler formula to find radial speed of a star
- owengmcdonnel
- · Replies 1 ·
How Far Does a Stone Travel in 2 Seconds When Thrown Downward?
- nouf33
- · Replies 1 ·
High resistance or low resistance for induction cooktops?
- Nerkiot
- · Replies 1 ·
Calculating rate of change of momentum for a package
- EmSeeSquared
- · Replies 1 ·
Capacitance of two parallel wires near a conducting plane
- Miike012
- · Replies 8 ·
Calculate how far the spring is stretched from its position?
- andreyp27
- · Replies 8 ·
Intepretation of question only
- negation
- · Replies 4 ·
Equilibrium of a Rigid Body: Finding Unknown Mass on a Lever
- Mookie
- · Replies 1 ·
Kinematics Word Problem - Projectile Fired at a Stationary Vehicle
- Wellesley1
- · Replies 2 ·
Understanding Why No Torque is Produced at O
- princejan7
- · Replies 1 ·
How High is the Cliff if a Rock Splashes Water in 3 Seconds?
- Jerry
- · Replies 3 ·
Turnable Angular Frequency, Torque,Inertia
- upandup
- · Replies 5 ·
Why Does Hooke's Law Consider Only 150N in a Two-Person Pull Test?
- Gandor481
- · Replies 1 ·
Speed of airplane at top of loop when pilot feels weightless
- EEintraining
- · Replies 17 ·
Centre of gravity for multiple objects
- aab234
- · Replies 5 ·
Where do I place the bearings for a stable inclined rotating drum?
- Sook
- · Replies 3 ·
Terminal voltage and current flow
- narutoish
- · Replies 1 ·
AC current and incandescent bulbs
- KozakDave
- · Replies 3 ·
Acceleration of Bar in Circuit with Magnetic Field
- Mysterious
- · Replies 5 ·