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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Power needed to keep conveyor belt running
- Pushoam
- · Replies 7 ·
Vector problem -- Find the angle between vector A and vector B
- Vatsal Goyal
- · Replies 8 ·
How many Trusses act on this system?
- Francis Hannah
- · Replies 1 ·
Understanding Malus Law and Polaroid Intensity: Conceptual Doubts
- Suyash Singh
- · Replies 2 ·
Linear attenuation coefficient for gamma ray attenuation
- adamworth
- · Replies 1 ·
Potential difference in between positive and negative charge
- Seung Tai Kang
- · Replies 13 ·
Small issue regarding the wording of a thermodynamics question
- dregozo
- · Replies 3 ·
Fringe Visibility of Sodium Doublet in Michelson interferometer
- Marcus95
- · Replies 8 ·
How to get the coefficient of kinetic friction?
- Fatima Hasan
- · Replies 3 ·
Maximum work done by a Carnot engine
- Pushoam
- · Replies 6 ·
Approximation for a slipped pendulum
- Pushoam
- · Replies 14 ·
Tension in 4 strings suspending object at 4 different points
- Chandan Pednekar
- · Replies 19 ·
How to get the coefficient of kinetic friction
- Fatima Hasan
- · Replies 6 ·
Dielectric problem -- two line charges inside a dielectric cylinder
- Physgeek64
- · Replies 9 ·
Conservation of Energy: block on a table
- Fatima Hasan
- · Replies 7 ·
Conservation of Energy -- Toy car hits and compresses a spring
- Fatima Hasan
- · Replies 14 ·
Wires in an circuit, different materials, heat
- Regla
- · Replies 2 ·
Calculate the temperature of neutrons emerging from a reactor
- Physgeek64
- · Replies 8 ·
Why is the expectation value of the commutator not zero in method 1?
- alizeid
- · Replies 9 ·
Effect of Dielectric Material on Capacitor Voltages in a Circuit
- Eitan Levy
- · Replies 20 ·
Area of common surface of two bubbles
- Aniket13
- · Replies 16 ·
How Much Load Will the Wheel at C Bear in a 3-Axle Trailer?
- Mechaman
- · Replies 1 ·
Velocity of a cylinder on a horizontal plane
- CSA
- · Replies 7 ·
Newton's laws -- Blocks and pulleys problem with friction....
- Eitan Levy
- · Replies 17 ·
Rockets approach: time they meet w.r.t. rocket A?
- cdorman2
- · Replies 3 ·
Why Do We Double Time in Speed Camera Calculations?
- Krashy
- · Replies 8 ·
Initial velocity of ball B hit a free falling ball A
- Bond
- · Replies 7 ·
Eigenfunction energy levels in a harmonic well
- Lazy Rat
- · Replies 6 ·
What happens to the charges on the capacitors when a capacitor is disconnected?
- Eitan Levy
- · Replies 11 ·
Poynting vector of current carrying wire
- Physgeek64
- · Replies 8 ·
Combined resistance in this circuit
- Eitan Levy
- · Replies 12 ·
What is the Suitable Fuse Rating for the Mains Supply in Question 35?
- Richie Smash
- · Replies 4 ·
Pressure Difference: F=10 Tonnes, A=100 sq m - Calculate & Understand
- Kolika28
- · Replies 5 ·
Ratio of energy densities of black body radiation
- Pushoam
- · Replies 3 ·
How Is the Equilibrium Temperature Derived in a Coaxial Cylinder Configuration?
- Physgeek64
- · Replies 4 ·
Photo of rotating scale and falling coins
- Pushoam
- · Replies 5 ·
Single-slit Diffraction Problem
- lingualatina
- · Replies 4 ·
How Do You Calculate Radiation Dose Through Lead Shielding?
- adamworth
- · Replies 29 ·
Return time to its original state of a particle in the double infinite well
- Javier141241
- · Replies 3 ·
Problem : electric field due to line charge
- gracy
- · Replies 6 ·
How Much Does the Spring Compress When a Man Jumps on a Scale?
- emilytm
- · Replies 1 ·
Proof of Wheatstone bridge equation
- whatdoido
- · Replies 7 ·
Relative velocities in special relativity
- Kennedy
- · Replies 27 ·
What is the Velocity of Thermal Neutrons at 25 Degrees Celcius?
- FADFAD1
- · Replies 1 ·
Normalization constant for a 3-D wave function
- Valeria
- · Replies 2 ·
The Coriolis Force: Where Will It Take You?
- Kosta1234
- · Replies 10 ·
Finding the minimum time for crossing a river
- Abhimessi10
- · Replies 1 ·
Solving Linear Motion Problems: Initial Speed, Time, and Height
- MooPhysics
- · Replies 3 ·
How Do You Calculate a Castaway's Final Position Using Vectors?
- Anonymous1135
- · Replies 10 ·
Angular momentum due to electromagnetic induction
- Pushoam
- · Replies 5 ·
How Is the Dielectric Constant Determined for a Rod to Prevent Light Absorption?
- Pushoam
- · Replies 4 ·
Uniform rotating rod about a point at one end of the rod
- Kennedy
- · Replies 3 ·
Modified Block Problem -- Block on top and on the side
- rumman18
- · Replies 3 ·
Finding the units in an algebraic equation for velocity
- Kennedy
- · Replies 6 ·
Finding the radius of the sphere
- kaspis245
- · Replies 7 ·
V(center) of charged metal sphere inside a grounded shell
- Pushoam
- · Replies 3 ·
Force exerted by a particle in a box on the boundary
- Pushoam
- · Replies 18 ·
Compton Scattering: Solving for E with $\phi = 1/4\pi$
- Pushoam
- · Replies 4 ·
Particle in a box quantum mechanics
- Pushoam
- · Replies 3 ·
Charge density of capacitor plates
- Physgeek64
- · Replies 16 ·
Minimum consumption rate of a heat pump
- Pushoam
- · Replies 5 ·
Why is F=ma? (Physics homework)
- SaifTaher
- · Replies 13 ·
Calculating Work Done on a Basketball Dropped from 5m
- Fatima Hasan
- · Replies 1 ·
Deviation in refraction and TIR
- Jon Drake
- · Replies 2 ·
Wavelength of Sound: Solve Using X & Y
- Richie Smash
- · Replies 6 ·
Frequency of a proton moving in a circular orbit
- Pushoam
- · Replies 7 ·
Dimension of length using h,G,c
- Pushoam
- · Replies 4 ·
Mechanical problem -- a mass sliding down a curved ramp
- PeppaPig
- · Replies 14 ·
Energy needed to remove both electrons from a He atom
- Pushoam
- · Replies 3 ·
Standard deviation of V_x of He gas
- Pushoam
- · Replies 12 ·
De – Broglie wavelength of O_2
- Pushoam
- · Replies 2 ·
Finding the Maximum Mass Ratio for Elastic Collisions: A Quick Homework Problem
- PeppaPig
- · Replies 1 ·
Gravitational Effects on a Pendulum in a Moving Ship
- Viraam
- · Replies 16 ·
Magnetic field experiment confusion with error calculations
- Taylor_1989
- · Replies 8 ·
Find speed given mass, starting speed and time
- doublev231
- · Replies 64 ·
A block is released from rest, determine its velocity
- Alexanddros81
- · Replies 4 ·
First post: work and energy problem
- Ianardo
- · Replies 5 ·
Thermal expansion of bimetallic strip
- PeppaPig
- · Replies 19 ·
Velocity and Distance involving springs
- eglaud
- · Replies 14 ·
Vector Subtract Given Magnitude
- Lori
- · Replies 6 ·
Image distance from the hemisphere lens
- PeppaPig
- · Replies 9 ·
Dispersion relation for a surface wave of a pool of water
- Pushoam
- · Replies 6 ·
The electron momentum is E/c, so that its speed is....
- Physics Student 1234
- · Replies 3 ·
The solution of a problem regarding center of mass
- Likith D
- · Replies 9 ·
Two spheres of are dropped to ground while in contact.
- SiddhantRai
- · Replies 5 ·
B on center of 2 infinite wires with semi - circular end
- Pushoam
- · Replies 2 ·
Two particles moving in a central potential
- Fibo112
- · Replies 1 ·
Laplacian for hyperbolic plates
- Physgeek64
- · Replies 26 ·
Energy of System: Which Statement is Always Correct?
- Fatima Hasan
- · Replies 1 ·
What is the formula for calculating fringe width in an interference pattern?
- Pushoam
- · Replies 5 ·
Point charge outside a grounded conducting sphere
- Pushoam
- · Replies 7 ·
Doppler effect: calculate speed of a moving star
- Pushoam
- · Replies 6 ·
Adiabatic Temperature Change in Rising Air
- Physgeek64
- · Replies 10 ·
Surface made by balls thrown in different directions
- Pushoam
- · Replies 9 ·
Heat equation and stainless-steel wire
- Physgeek64
- · Replies 9 ·
How Far Does a Rocket Travel in 10 Seconds at 3600mph?
- Bill Raines
- · Replies 7 ·
Why Doesn't My Power Calculation Match Real-World Scenarios?
- Aeronautician
- · Replies 4 ·
Power given to particle by centripetal forces
- Ghost Repeater
- · Replies 5 ·
Coulomb force and charge equilibrium on the xy-plane
- PRASHANT KUMAR
- · Replies 1 ·
Two blocks on a surface and a pulley
- Eitan Levy
- · Replies 5 ·