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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Method of Images from an earthed half cylinder and plane
- JoelKTH
- · Replies 7 ·
Einstein's Electrodynamics of moving Bodies
- jselms99
- · Replies 7 ·
How does the presence of a cube resistor affect current flow in a circuit?
- johnio09
- · Replies 6 ·
Effect of a polarizer/analyzer on partially polarized light
- FranzDiCoccio
- · Replies 25 ·
Final velocity involving a can of soup and an inclined plane
- as2528
- · Replies 14 ·
Forces in a Line: Examining the Relationship Between Mass and Force
- Heexit
- · Replies 1 ·
Work done to lift a mass of water
- henry3369
- · Replies 6 ·
Rearrange formula and work out phase angle
- leejohnson222
- · Replies 6 ·
MIT OCW, 8.02 Electromagnetism: Potential for an Electric Dipole
- zenterix
- · Replies 1 ·
Surface density of the charges induced on the bases of the cylinder
- rokiboxofficial Ref
- · Replies 7 ·
Moment of inertia problem involving a cylinder rolling down an incline
- as2528
- · Replies 11 ·
1D Particle & Energy w/ F(x): Am I doing this right?
- monsterhart
- · Replies 7 ·
2-D Momentum Problem -- Elastic collision of two spheres
- Jimmy87
- · Replies 12 ·
Mastering Jenga Tower Physics: Calculating Forces and Layers
- maserati1969
- · Replies 20 ·
Thin heartshaped wire - Calculate the magnetic field at the origin
- JoelKTH
- · Replies 18 ·
Electric field generated by solenoid
- quarkyphysicsgirl
- · Replies 4 ·
The gravitating of a small mass towards a big mass
- brotherbobby
- · Replies 3 ·
Finding downward force on immersed object
- member 731016
- · Replies 62 ·
Superposition of two one-dimensional harmonic waves
- orangephysik
- · Replies 10 ·
Damped harmonic oscillation of a swingboat
- orangephysik
- · Replies 6 ·
Doppler effect and acceleration of source
- orangephysik
- · Replies 5 ·
Moments of force on Jenga tower
- maserati1969
- · Replies 14 ·
How to calculate Earth speed of the Moon induced orbit?
- emily-
- · Replies 4 ·
Glass prism and its refractive index
- orangephysik
- · Replies 1 ·
Change in energy stored in a spherical Capacitor
- ssarpal
- · Replies 2 ·
Electric field at the center of the equilateral triangle
- hellowmad
- · Replies 10 ·
Solving Distance Traveled Using Formulas vs. Graphs
- Callmelucky
- · Replies 6 ·
Optimizing Polar Axis for Dipole in Polar Coordinates
- DaraRychenkova
- · Replies 2 ·
Initial speed of an object launched from Mars
- marjine
- · Replies 2 ·
Can an ideal spring ever experience an unbound state?
- marjine
- · Replies 7 ·
Solving Current & Power in 4 & 3 Wire Circuits
- Evari5te
- · Replies 9 ·
Creating a Contour System: Results
- abvg
- · Replies 8 ·
Find Initial Velocity of a projectile given flight time and angle
- Asem
- · Replies 13 ·
Another way to find trig identities
- member 731016
- · Replies 3 ·
Helium balloon energy conservation
- member 731016
- · Replies 15 ·
Measuring wavelength of microwave radiation using double slits
- member 731016
- · Replies 8 ·
Change in temperature of air in a closed system
- Thomas_Kellner
- · Replies 16 ·
Solar System Forces -- Simulating the planetary orbits for my project
- Parziter
- · Replies 18 ·
Symmetrical parallel inductors, different currents? State Preparation
- yucheng
- · Replies 7 ·
Single transfer lag in an open-loop system
- Keeeen
- · Replies 31 ·
A particle in an infinite square well
- Quatumphysicshelp
- · Replies 2 ·
Speed of sound from resonant length of tube vs tuning fork wavelengths
- member 731016
- · Replies 16 ·
Use linear regression to find Planck’s constant
- member 731016
- · Replies 10 ·
Wrong B-Field Result: What Should I Have Done?
- rmrribeiro
- · Replies 10 ·
Which hemisphere is the observer?
- guv
- · Replies 5 ·
Understanding the Adjoint of |01> in Quantum Computing
- quantumstudent
- · Replies 2 ·
How to approach dynamics problems?
- cancerman1
- · Replies 8 ·
Gas temperature in a constant volume
- Ebi Rogha
- · Replies 8 ·
Force between point charges at the center of two spherical shells
- vcsharp2003
- · Replies 4 ·
Finding the work done by a block
- HeavenWind
- · Replies 4 ·
Proof of angle in path difference formula for two slits
- member 731016
- · Replies 8 ·
Mass: Uniting Quarks & Antimatter in Unexpected Ways
- talanum52
- · Replies 7 ·
Calculating ΔE Difference for 2 Samples of Monatomic Ideal Gas
- hellowmad
- · Replies 4 ·
Average distance between asteroids in the asteroid belt
- ananonanunes
- · Replies 4 ·
A (nonconservative) electric field is induced in any region in which...
- dainceptionman_02
- · Replies 11 ·
Thermal expansion of square from temperature increase of 50K
- member 731016
- · Replies 28 ·
Angular acceleration problem for a pulley used to raise an elevator
- leggythegoose
- · Replies 8 ·
How can the direction of propagation help in determining the phase of a wave?
- Philip551
- · Replies 4 ·
Rate of loss of potential energy
- songoku
- · Replies 3 ·
Graphing Power vs Polarizer Angle using Intensity
- member 731016
- · Replies 32 ·
Power dissipated by a resistor on a coaxial cable
- gausswell
- · Replies 2 ·
Calculate the induced EMF of a rotating loop
- dainceptionman_02
- · Replies 7 ·
Rocket acceleration problem: confused about Newton's 2nd Law
- aniseed
- · Replies 42 ·
Question involving clockwise angular movement
- as2528
- · Replies 9 ·
Measured Surface Resistivity Much Higher than Theoretical Value (Why?)
- LulaBell
- · Replies 3 ·
Question involving angular acceleration of a spinning wheel
- as2528
- · Replies 12 ·
Direction of static friction between a vehicle and circular dome
- alyssam042
- · Replies 9 ·
Power and Efficiency without mass?
- sbrads87
- · Replies 4 ·
Vector-Force image and resolve force
- sHatDowN
- · Replies 27 ·
Acceleration & Normal Force of a Box: 4 m/s2 & 418 N
- Remle
- · Replies 9 ·
Vector sample problem -- Force components on a spring mechanism
- sHatDowN
- · Replies 9 ·
Conservation of power in a traveling wave on a string
- Adrian Simons
- · Replies 9 ·
Expert Tips: How to Overcome Task Confusion
- leggythegoose
- · Replies 1 ·
Find speed of block using energy and spring equations? Help please
- leggythegoose
- · Replies 6 ·
Compression/Tension in Steel I Beams
- Alena Selone
- · Replies 23 ·
Forces acting on a block that is pushed against a wall
- MatinSAR
- · Replies 2 ·
At what angle must the boat travel so that it moves in a straight line
- paulimerci
- · Replies 25 ·
Expected value of variance of Hamiltonian in coherent states
- graviton_10
- · Replies 5 ·
Exploring Periodic Distribution of Rigid Balls in a Vast Space
- crazy lee
- · Replies 7 ·
Electric Field Inside Cylindrical Capacitor
- Idontknowhatimdoing
- · Replies 2 ·
Normal Forces on a Sphere in a Non-vertical Groove
- Quasar100
- · Replies 12 ·
Pressure applied to the ground by a man standing on stilts
- sebastian281172
- · Replies 7 ·
Ray reflecting off intersecting mirrors
- member 731016
- · Replies 8 ·
A pulley system with two pulleys and two suspended masses
- member 731016
- · Replies 54 ·
Vector problem, magnitude of the force
- sHatDowN
- · Replies 30 ·
Projectile Motion Using Vectors
- themethetion
- · Replies 39 ·
Trigonometric Relationship for Light Passing Through a Slab
- member 731016
- · Replies 2 ·
Solving Confusions on Pulling a Spool
- member 731016
- · Replies 90 ·
Flag orientation for a boat observer Vs a ground observer
- vcsharp2003
- · Replies 14 ·
Galactic Dynamic Homework （Problem 2.1 of B&T)
- Chamarel Elna
- · Replies 1 ·
Simple Addition of Vector Forces on an Eye-Hook
- sHatDowN
- · Replies 26 ·
Question about travelling wave equation
- Yoseph Santoso
- · Replies 5 ·
Electric motor problem -- Power to accelerate a toy train
- member 731016
- · Replies 28 ·
How can I troubleshoot and verify my calculations for magnetic force?
- kevinm829
- · Replies 4 ·
Amplitude of a circular ripple at distance r from source
- member 731016
- · Replies 10 ·
How to prove that motion is periodic but not simple harmonic?
- vcsharp2003
- · Replies 51 ·
Why does the war-wolf reach its maximum speed at the vertical position?
- member 731016
- · Replies 19 ·
Acoustics Question Confusion (Test Q)
- Intel Xeon
- · Replies 3 ·
Infinite number of pairs of Force and distance R from AoR
- member 731016
- · Replies 13 ·
What kind of wire needed to prevent overheating?
- songoku
- · Replies 11 ·