Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
A dust particle through an electric field
- baker265
- · Replies 3 ·
Electric field of a spherical metal shell
- baker265
- · Replies 2 ·
F=ma 2011 #24: Effects of Increasing Bearing Width & Radius
- licantroleon
- · Replies 3 ·
Just a simple thought experiment
- Fifty
- · Replies 6 ·
Differentiating thermodynamic coefficients
- Nikitin
- · Replies 4 ·
Cyclist trajectories from different reference frames
- chemistry1
- · Replies 6 ·
Work done lifting a 10 kg bucket from a 5 meter well
- PVnRT81
- · Replies 22 ·
What is the maximum volume expansion coefficient of ?
- castrodisastro
- · Replies 2 ·
Water Speed From a 1.5m Height Container
- walkofdeath
- · Replies 1 ·
Circuits (Nodal and loop anal. finding current through branch)
- Miike012
- · Replies 1 ·
Third-order maxima separation for 630 nm and 705 nm through diffraction grating
- tg22542
- · Replies 16 ·
How to Calculate Current from Electron Flow?
- W29EMP
- · Replies 1 ·
Sliding box question- finding applied force with friction
- jgray
- · Replies 4 ·
How Does Temperature Affect a Pendulum Clock in Alaska?
- castrodisastro
- · Replies 6 ·
Does the bullet train function x(t)=0.0011t³ meet all criteria?
- Eblack904
- · Replies 9 ·
Effect of wire heating on battery EMF
- Molly1235
- · Replies 5 ·
Potential and Electric Fields: Understanding Charges and Fields on a Line
- fogvajarash
- · Replies 1 ·
USAPhO 2009 F=MA exam #13, (spring SHM)
- Agrasin
- · Replies 6 ·
How to Calculate Initial Velocity for a Protein Bar to Reach a Hiker on a Slope?
- negation
- · Replies 8 ·
Estimating Moon's mass from Earth-Moon gravitational equilibrium
- calculator20
- · Replies 9 ·
Constant velocity and an object at rest
- Tiven white
- · Replies 7 ·
Difference between W = Fx and work as an integral of F dx
- xphysics
- · Replies 6 ·
What's the Difference Between Ax and i-Hat in Vector Notation?
- jdawg
- · Replies 10 ·
Effect of a net force of zero mechanics question
- Tiven white
- · Replies 9 ·
Rate of forward motion from rolling rectangle vs degrees turned
- brimby
- · Replies 43 ·
Organ Pipe Resonance - How long is the pipe?
- MystiqThunder
- · Replies 10 ·
At what height objects will pass each other?
- patelneel1994
- · Replies 5 ·
Increasing the number of pulleys
- Blonde1551
- · Replies 1 ·
Why Is My Speed Calculation for the Accelerating Car Incorrect?
- JacobPeeples
- · Replies 10 ·
Solve Sound Wave Problem: Frequency of Sound in Air (336 m/s)
- Saitama
- · Replies 3 ·
Can we add displacements from SHMs with different frequencies?
- hav0c
- · Replies 6 ·
How Do You Calculate Acceleration from Distance and Final Velocity?
- patelneel1994
- · Replies 5 ·
Momentum eigenvalues and eigenfunctions
- White_M
- · Replies 2 ·
Free Fall Question: Find Height from Half-Distance Traveled
- Speedking96
- · Replies 4 ·
Effect of doubling a mass Newton's law of universal gravitation
- Tiven white
- · Replies 10 ·
Finding density for identical spheres
- Tiven white
- · Replies 7 ·
Prove that a projectile launched on level ground
- negation
- · Replies 7 ·
Coriolis force of a stone throw
- Karol
- · Replies 29 ·
Answer check-derive a general formula for horizontal displacement
- negation
- · Replies 9 ·
Balls at opposite ends of a beam in equilibrium
- gcombina
- · Replies 9 ·
Empty elevator with a max speed going down, find tension on cable.
- ichivictus
- · Replies 3 ·
Find the tension between two train carts as the train brakes.
- ichivictus
- · Replies 1 ·
Throwing a projectile so that it clears the window
- negation
- · Replies 17 ·
Water poured over ice until temp is at equilibrium
- castrodisastro
- · Replies 17 ·
Plane landing, finding the velocity
- albertnewton
- · Replies 12 ·
Which Unit Is Not a Basic Quantity in Mechanics?
- Tiven white
- · Replies 3 ·
Calculate Initial Speed of Ball Thrown Vertically 14m in 3s
- patelneel1994
- · Replies 14 ·
USAPhO F=ma 2010 exam # 17 (Gravitational potential energy)
- Agrasin
- · Replies 2 ·
Help choosing kinematic equations for rocket and ball motion problems
- SirWestofAsh
- · Replies 9 ·
Coulomb force between two conducting spheres with charges -19.4 μC and +49.3 μC
- EmilyfromOH
- · Replies 8 ·
Suvat equations - car braking hard to avoid a collision
- Apothem
- · Replies 13 ·
Calculating initial trajectory without time
- Latsabb
- · Replies 10 ·
How close to the end can an 800-N person stand on a plank before it tips
- gcombina
- · Replies 12 ·
Hints on how to approach this vector displacement problem?
- JessicaJ283782
- · Replies 3 ·
Capacitance/Capacitor Conceptual Problem
- wompkins
- · Replies 5 ·
Is the speed of a wave dependent on the speed of the source?
- fuserofworlds
- · Replies 10 ·
Draw a Circuit based on the info and find the voltage values
- yaro99
- · Replies 2 ·
What Is the Work Done in Climbing and Descending a Hill?
- darwined
- · Replies 4 ·
Resistance & Force In Inclined Planes
- charityrae
- · Replies 1 ·
Where is the location of zero net force between two fixed charges?
- NewtonRoxU
- · Replies 1 ·
Electric flux through the earth
- sashab
- · Replies 2 ·
Finding unknown currents using Kirchhoff's current law at nodes
- yaro99
- · Replies 6 ·
EM wave described using a sine function.
- Darren93
- · Replies 4 ·
Calculate 2C*(3AxB) for Vectors A, B, and C
- jdawg
- · Replies 3 ·
Calculating Net Charge: How Many Electrons Does it Take?
- ceity
- · Replies 1 ·
Why net torque doesn't equal zero for a block on an inclined plane
- hangainlover
- · Replies 12 ·
Velocity of rock thrown horizontally from cliff at 25 m/s after 3 seconds
- evan1997ere
- · Replies 2 ·
Estimating starlight deflection near the sun's surface
- Chemp_93
- · Replies 9 ·
Heat Capacity and specific heat
- garyd
- · Replies 2 ·
Compute voltage inside sphere of uniform charge
- Gary Roach
- · Replies 2 ·
How Can MATLAB Simulate Particle Motion in a 3D Vector Field?
- PropulsionMan
- · Replies 1 ·
Moment of Inertia of Hollow Sphere about Center Axis x-y-z method
- howie8594
- · Replies 3 ·
Acceleration and speed as m*s^-1
- Xecutive
- · Replies 3 ·
What is the pressure inside the tube at 48 meters depth in seawater?
- Olara
- · Replies 17 ·
What Forces Are Acting on a Man Climbing an Incline?
- thonwer
- · Replies 8 ·
Why is restoring force proportional to x squared in this oscillation problem?
- xtrubambinoxpr
- · Replies 29 ·
Collision of baseball with falling person
- negation
- · Replies 6 ·
How Do You Calculate Electric Field and Force in a Charged Square?
- puzzledup
- · Replies 4 ·
Height of a building with a Projectile
- guma671
- · Replies 7 ·
Velocity of water from a hose using projectile motion experiment
- Ben1
- · Replies 1 ·
Which Law Determines the Strength of a Pull?
- Tiven white
- · Replies 3 ·
How does the position of the Moon affect gravitational pull and weight on Earth?
- whoareyou
- · Replies 33 ·
Electric fields of a spherical shell
- MathewsMD
- · Replies 3 ·
Thermodynamics and Internal Energy of a gas
- castrodisastro
- · Replies 2 ·
Divergence theorem (determining the correct direction for normal vecto
- Miike012
- · Replies 1 ·
Static Electricity and Number of Electrons
- Nicolaus
- · Replies 2 ·
Can someone tell me if conduction is more powerful than induction?
- CiVi
- · Replies 1 ·
Four charges each Q in magnitude
- britt
- · Replies 18 ·
Speed of proton and alpha particle
- colmes
- · Replies 1 ·
Three charges q, uniform circular motion
- colmes
- · Replies 1 ·
What Radius Produces Intensity Minimum?
- tg22542
- · Replies 2 ·
Physics 2 , two Styrofoam balls on insulated thread
- nathancurtis11
- · Replies 8 ·
Final velocities of 0.3 kg gliders in elastic collision
- cherioslover
- · Replies 1 ·
Hurricane Fluid flow, torque, cross product
- Frozen Light
- · Replies 2 ·
Finding airplane mass from wing lift using Bernoulli's equation
- zodiacbrave
- · Replies 12 ·
How Do Particles Relate to Rigid Bodies in Different Scientific Contexts?
- Tiven white
- · Replies 3 ·
Moon Earth and Satellite gravitation
- Frozen Light
- · Replies 7 ·
Which statement is false about constant velocity?
- Tiven white
- · Replies 18 ·
Formation of Pluto, solar effects on life, and cooling of stone
- Ewrim
- · Replies 4 ·
Relativity - Sphere flattening due to relativistic speed
- Jon.G
- · Replies 9 ·