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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Finding the coefficient of restitution
- Saitama
- · Replies 11 ·
Statics free body diagram (frames and machines)
- lc99
- · Replies 5 ·
What is the diameter of the cylindrical rod
- Perodamh
- · Replies 9 ·
Mechanical energy lost when child jumps onto merry-go-round
- jybe
- · Replies 3 ·
Calculating flux with a magnet and a coil
- AnneClara
- · Replies 4 ·
What is the specific heat of the metal in this specific heat problem?
- lc99
- · Replies 3 ·
Finding refraction angle with Snell's law
- Muhammad Danish
- · Replies 6 ·
Equivalent resistance between two points on a circuit
- Jahnavi
- · Replies 32 ·
Which quantities are not the same for this capacitor setup?
- eprparadox
- · Replies 5 ·
Why does calculating primary coil current from secondary current give the wrong answer?
- Muhammad Danish
- · Replies 8 ·
Calculating Accelerations in an Atwood Machine with an Applied Force
- issacnewton
- · Replies 26 ·
How does atmospheric pressure affect an air bubble's volume at depth?
- Muhammad Danish
- · Replies 20 ·
Solving for F2 in the Turning Effect of Force Problem
- Muhammad Danish
- · Replies 15 ·
Effect of Rotating Polarizing Films
- chef99
- · Replies 8 ·
What is the initial charge of the second object in Coulombs?
- JessicaHelena
- · Replies 3 ·
Viscosity & Temperature - Linearisation and glycerine?
- adityax26
- · Replies 10 ·
Can someone check my setup for finding E.dl?
- emhelp100
- · Replies 17 ·
Finding torsion constant of the wire?
- jazzymanstan
- · Replies 1 ·
Atomic Structure problem regarding interatomic spacing
- rxy152
- · Replies 13 ·
How an oscillator creates electromagnetic waves
- chef99
- · Replies 2 ·
Aluminium weight buoyancy problem
- Aleisha
- · Replies 2 ·
Optimal kicking angle for maximum distance at 20 m/s
- Stephen Garner
- · Replies 7 ·
Finding Period? Calculate Average in 4.56s for 10 Oscillations
- HappyFlower
- · Replies 1 ·
Freezing of water inside a hollow sphere which is rolling
- Jnan
- · Replies 29 ·
Ultra-Relativistic Particle Decaying to Identical Particles
- GL_Black_Hole
- · Replies 1 ·
Showing E.dl is 0 - Why cylindrical coordinates?
- emhelp100
- · Replies 5 ·
Show that three new found nuclei are unstable
- Taylor_1989
- · Replies 1 ·
Calculating Force in the Turning Effect of Force Equation
- Muhammad Danish
- · Replies 5 ·
How do the electroscope leaves behave after grounding?
- JessicaHelena
- · Replies 8 ·
Collision and rotation problems?
- Japser Lu
- · Replies 2 ·
Current Dividing in an Electrical Circuit
- Muhammad Danish
- · Replies 5 ·
Max ω of circular hoop rotating around a peg and oscillation
- Phantoful
- · Replies 1 ·
Dynamics Questions involving Friction
- Nith
- · Replies 13 ·
Determining the width of a slit
- chef99
- · Replies 2 ·
Potential difference across a resistor
- palkia
- · Replies 15 ·
What Z and N values stabilize a nucleus with A=22?
- Taylor_1989
- · Replies 3 ·
Linear algebra, field morphisms and linear independence
- mariang
- · Replies 1 ·
What is the phase margin and gain margin for this circuit?
- Cocoleia
- · Replies 5 ·
Finding the torque on a wire between two poles
- LuigiAM
- · Replies 6 ·
Why are multiple resultant vectors possible for this problem?
- Muhammad Danish
- · Replies 14 ·
Wave Particle Duality For Electrons and Photons
- Taylor_1989
- · Replies 2 ·
Force on conductor in magnetic field
- Suyash Singh
- · Replies 6 ·
Is there a relationship between acceleration and jump height
- Tony H
- · Replies 3 ·
Determining the direction of magnetic force
- miyayeah
- · Replies 1 ·
Ball floating on the surface of water
- Jahnavi
- · Replies 56 ·
Amplitude of particles in progressive waves
- Krisd98
- · Replies 3 ·
Relativistic Decay: Calculating Pion Momentum
- FilipLand
- · Replies 3 ·
Simple closed force system -- Mechanics
- Maria
- · Replies 9 ·
Atomic Structure- Energy diff between levels
- rxy152
- · Replies 3 ·
What is the entropy for an irreversible adiabatic process?
- eprparadox
- · Replies 1 ·
Magnetic field at the center of 3 wires carrying current?
- Helly123
- · Replies 46 ·
Ampere's Law with a coaxial cable
- Ignitia
- · Replies 2 ·
Impulse Question -- A car changing speed and direction
- mailmas
- · Replies 7 ·
Electric field inside/outside (uniformly charged sphere)
- bolzano95
- · Replies 5 ·
Contact Lenses Optics Problem (Two-Parts)
- DylanXO
- · Replies 2 ·
Calculating the Number of Lines on a Diffraction Grating
- EmilyBergendahl
- · Replies 8 ·
Calculating Orbital Angular Momentum: What Is the Correct Answer?
- Martin89
- · Replies 4 ·
Find the charge on the outer surface
- Fatima Hasan
- · Replies 7 ·
Why does E=mc² give the wrong momentum for a photon?
- pokemon123
- · Replies 2 ·
What is the result of connecting two identical storage batteries?
- Perseverence
- · Replies 8 ·
Maximum range angle for bullet fired from moving car at 20 m/s
- Suyash Singh
- · Replies 40 ·
Cannon on moving car momentum calculation
- mailmas
- · Replies 12 ·
How do I calculate the gauge pressure?
- eprparadox
- · Replies 2 ·
Find the charge on the conducting surface
- Fatima Hasan
- · Replies 7 ·
Ball shot into air with velocity (7.6i - 4.9j) m/s at 9.1 m height
- isukatphysics69
- · Replies 11 ·
Find the electric field at a point away from the charged cylinder's axis
- Fatima Hasan
- · Replies 5 ·
Distance between adjacent fringes
- chef99
- · Replies 3 ·
Effective resistance between two points using symmetry
- Jahnavi
- · Replies 35 ·
Parallel Circuits - Joining 2 branches together
- wolfsloth
- · Replies 7 ·
Determining the B-field in center of current carrying loop
- kaashmonee
- · Replies 5 ·
Why Is There a Limit to Drinking Water Through a Straw?
- Jahnavi
- · Replies 11 ·
How Does Friction Affect Acceleration on an Incline?
- harambe
- · Replies 19 ·
Calculating a push force using area, speed, and density?
- struggtofunc
- · Replies 8 ·
Velocity of a football with and without drag
- N8G
- · Replies 7 ·
Elastic collision of block on block
- Beblak2
- · Replies 4 ·
Energy question, what are the quantities conserved?
- Clara Chung
- · Replies 2 ·
Finding a third method to determine light wavelength
- chef99
- · Replies 4 ·
Can a neutral insulator be attracted to a charged object?
- jumbogala
- · Replies 2 ·
How does radius affect frequency in uniform circular motion?
- Tannerbobanner
- · Replies 17 ·
Biot-Savart Law with two semi-circles
- Ignitia
- · Replies 1 ·
Electric force between alpha particle and gold nucleus at 2.0e-17 m
- Randell Julius
- · Replies 8 ·
Separating kinetic energies of two masses in elastic collision
- Clara Chung
- · Replies 2 ·
Force from a Current in an Infinite Wire on a Square Wire Loop Nearby
- Schfra
- · Replies 5 ·
Period of a physical pendulum with a pivot at its center
- PhysicsKush
- · Replies 3 ·
Short-circuited Resistance in Parallel with Reactance
- GoodPost
- · Replies 6 ·
Increase in the volume of a sound
- EchoTheCat
- · Replies 2 ·
Finding acceleration from the angle made by a hanged ball.
- Mohamed BOUCHAKOUR
- · Replies 12 ·
Finding mass of charged sphere in Coulomb's law problem
- asilvester635
- · Replies 1 ·
Criteria for Determining Satellite's Return from Orbit?
- Clara Chung
- · Replies 8 ·
Physics Lens Problem: Find Object Distance
- meermeeronthewall
- · Replies 1 ·
How to find speed with Faraday's law
- Jacobs
- · Replies 7 ·
Direction of the Magnetic Field at a Point
- ktjj4
- · Replies 10 ·
Find the acceleration of a block on an inclined plane with a pulley
- isukatphysics69
- · Replies 16 ·
How Are Reaction Forces Calculated in a Hinged Beam and Strut System?
- M_Abubakr
- · Replies 1 ·
Single/double slit diffraction intensity
- EF17xx
- · Replies 3 ·
Statement slit separation young's double slit
- EF17xx
- · Replies 1 ·
Acceleration of a uniform solid sphere rolling down incline
- vbrasic
- · Replies 1 ·
Moment of inertia of a half disk about an axis
- vbrasic
- · Replies 6 ·
Is D(x,t) = ln(ax+bt) a solution to the wave function?
- Jamie_Pi
- · Replies 9 ·