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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Work done by cables on railroad cars
- acherentia
- · Replies 2 ·
Accident Analysis: Find Speed of Sedan and SUV Before Collision
- AnNe11
- · Replies 4 ·
Momentum Lab Help: Understanding Collisions in AP Physics B Course
- bleedblue1234
- · Replies 1 ·
A dart player, standing 3.2m away from the darboard thorws a dart horizontally
- jojo14
- · Replies 2 ·
How Does the Force on the Ceiling Change in Different Bosun's Chair Scenarios?
- IbadatPHY
- · Replies 1 ·
Acceleration and free fall problem
- cheerspens
- · Replies 2 ·
How would you solve the following physics acceleration and free fall problem?
- cheerspens
- · Replies 2 ·
What is the charge ratio between two equipotential spheres?
- nns91
- · Replies 4 ·
Question on gravitation(low-altitude satellite)
- karis
- · Replies 3 ·
What is the Constant Speed of the Bus During the Middle Section of the Trip?
- Kris.oh
- · Replies 2 ·
What is the net force on the object?
- 1irishman
- · Replies 8 ·
Is My Calculation of Force on a Gas-Filled Box Correct?
- pc2-brazil
- · Replies 11 ·
Binary star system distance between stars
- frostking
- · Replies 2 ·
How to Calculate Net Torque on a Beam about Different Axes
- sarahjt1
- · Replies 2 ·
Find its angular acceleration in radians per second per second
- cake90036
- · Replies 2 ·
Total moment of inertia of a two particle system
- Linus Pauling
- · Replies 16 ·
Help With Projectile Motion Calculation for Brick Throw at Moving Trash Truck
- AstraeaSophia
- · Replies 5 ·
Calculating Net Force and Deacceleration in a Head-On Collision
- Sky.Anthony
- · Replies 2 ·
Three Blocks Two Pulleys and a Table
- RJVoss
- · Replies 3 ·
Consider a circuit where 2 resistors are connected in parallel
- Oerg
- · Replies 5 ·
How Does Catching a Ball Affect Angular Momentum and Speed on a Turntable?
- sonutulsiani
- · Replies 4 ·
Momentum of blocks compressing spring
- Mugen Prospec
- · Replies 2 ·
Resistance: Series or Parallel?
- logearav
- · Replies 13 ·
Calculating Time Difference for P & Rayleigh Waves at Point B
- vipertongn
- · Replies 6 ·
What is the Force Exerted by a Heated Steel Beam with Clamped Ends?
- Punkyc7
- · Replies 5 ·
Magnetic Forces and Magnetic Field
- aesura
- · Replies 3 ·
De broglies wavlength and energy
- SpartanG345
- · Replies 1 ·
Acceleration of slinding crate pushed and pulled at the same time
- acherentia
- · Replies 8 ·
Calculating Energy at Niagara Falls
- BioGuy
- · Replies 7 ·
Kinetic energy and potential energy
- look416
- · Replies 18 ·
Gravitation: Mass Ratio, Separation, and Potential Maximum
- karis
- · Replies 3 ·
Something about Physics and Global Position System(GPS)
- mythguy
- · Replies 2 ·
Non-Conservative Forces - Help, Please
- ksdeponte
- · Replies 4 ·
Calculating Electric Field from Force on a Charge
- phy43
- · Replies 3 ·
Mechanics ynamics (Newton's 2nd Law?)
- Oblivion77
- · Replies 10 ·
Angular speed uniform rod problem
- tigerlili
- · Replies 2 ·
Electrical field of an equialateral triangle
- phy43
- · Replies 2 ·
Solve A Question in 2D Motion A dart player throws a dart horizontally at a spee
- candyvera
- · Replies 4 ·
Calculating Acceleration on Ice: Max Possible for 60.9kg Person
- Emethyst
- · Replies 1 ·
Solving Circuit Problems with Permanent Rules: Charges, Currents & More
- libelec
- · Replies 8 ·
Difference between in situ and potential temp in water
- EMakepeace
- · Replies 8 ·
Very Hard Projectile Motion<Help, >
- Mafiaboy
- · Replies 5 ·
Question about conducting plates
- erik_8991
- · Replies 2 ·
Calculating moments of intertia
- Linus Pauling
- · Replies 4 ·
Where Is the Electric Field Zero Between Two Charges?
- phy43
- · Replies 4 ·
Center of mass of a non-uniform rod
- Linus Pauling
- · Replies 4 ·
Angular displacement and bicyclist
- Linus Pauling
- · Replies 7 ·
Constant Torque Find magnitude of friction force
- sarahjt1
- · Replies 1 ·
Energy required to lift a heavy box (pulley problem)
- Linus Pauling
- · Replies 7 ·
Can a Field Player Catch a Baseball Hit at 27 m/s and 32 Degrees?
- hiuting
- · Replies 1 ·
Momentum Conservation: A Ball Strikes a Wall
- UNknown 2010
- · Replies 6 ·
What is the time it takes for a player to come to a stop from sliding?
- chown
- · Replies 2 ·
Water Level floating ice physics
- Chewy0087
- · Replies 2 ·
How to Solve a 2D Projectile Problem: Finding Angle and Velocity
- Ytaipsw
- · Replies 3 ·
Apparent depth with multiple indices of refraction
- KBriggs
- · Replies 1 ·
Third Law of Motion Problem Finding average Force
- twisted
- · Replies 2 ·
Circular motion - determining expression for a position vector
- Linus Pauling
- · Replies 1 ·
Kinematics ramp and crate problem
- Fera09
- · Replies 4 ·
B-Field at a Perpendicular Distance
- chunkytuna21
- · Replies 3 ·
What is the velocity of each ball when the rod hits the ground?
- cokezero
- · Replies 3 ·
Change in an expression that I don't understand
- mkerikss
- · Replies 2 ·
Current and power in restisor combo
- hitman0097
- · Replies 4 ·
Error Propagation Homework: Find T's Error
- bigevil
- · Replies 1 ·
What is the acceleration of each body in the given figure?
- kocchumon
- · Replies 5 ·
Verifying Refraction of Coin in Water & Benzene
- KBriggs
- · Replies 1 ·
Circular Motion: Location & Speed at t=1s
- xstetsonx
- · Replies 1 ·
What is the maximum distance sound can travel for the human ear to detect it?
- hartraft
- · Replies 2 ·
Solving Reflection of Light: P, Q, R Disappear Order
- ThetaPi
- · Replies 1 ·
Calculating Time and Speed From Verticle Height and Acceleration Due to Gravity
- bobbles22
- · Replies 1 ·
What is the torque of the motor in our Lego car project?
- tam0009
- · Replies 24 ·
How to Calculate the Optimal Jump for a Flea Over a Log?
- godtripp
- · Replies 7 ·
How Fast Will the Skier Be After Crossing the Snow Patch?
- Fera09
- · Replies 3 ·
Superconducting train principle
- Robcheese101
- · Replies 1 ·
Displacement and average velocity
- copitlory8
- · Replies 1 ·
What is the force acting on a box on a conveyor belt?
- nietzsche
- · Replies 2 ·
Projectiles, 2D Motion, displacement and average velocity
- copitlory8
- · Replies 1 ·
Solving Block & Sphere Angle Problem w/ Gravity
- mrdoe
- · Replies 29 ·
Kinetic theory of gases theory question
- Mandavi
- · Replies 4 ·
Linear Algebra Help: Is L:R^2 -> R^2 a Linear Transformation?
- esler21
- · Replies 2 ·
Calculating Time Dilation in Inertial Frames
- gztiger
- · Replies 11 ·
Two vectors and the angle between them.
- exitwound
- · Replies 2 ·
Simple (or should be) Trigonomic question
- Yay
- · Replies 3 ·
How Much Does Increasing Engine Power Affect Top Speed Due to Air Drag?
- Linus Pauling
- · Replies 5 ·
Work-energy theorem problem - I have it close to correct
- Linus Pauling
- · Replies 6 ·
Pullies, masses, and acceleration
- LadyTwi
- · Replies 1 ·
How do I calculate net force given two force vectors and other parameters?
- synergix
- · Replies 2 ·
Relative Velocity of Rain Drops in a Moving Vehicle
- PhysicsMark
- · Replies 6 ·
A cart and pulley problem with a twist
- AlexTheTerp
- · Replies 6 ·
Drawing diagram given direction and degrees
- copitlory8
- · Replies 1 ·
Fairly simple rolling and slipping ball problem.
- cpfoxhunt
- · Replies 4 ·
Projectile Motion Problem -Diving off cliff
- Chandasouk
- · Replies 3 ·
Elastic Collision, Equal Masses
- Cruncher
- · Replies 2 ·
Conservation of Energy (2-Dimensional)
- interxavier
- · Replies 1 ·
Equilibrium Style Question involving a Weight
- Emethyst
- · Replies 3 ·
How to Use Newton's Laws to Solve a Sliding Ramp Problem
- ningaman129
- · Replies 4 ·
Critical angle- two climbers in a roped party
- mmoadi
- · Replies 11 ·
Calculating Stopping Time for a Dog on a Skateboard | Momentum Question
- Jonathan Teas
- · Replies 1 ·
How Do Velocities Affect the Mass Ratio of Skaters?
- dorian_stokes
- · Replies 1 ·
How Does an AC Generator Produce EMF?
- umar.ali
- · Replies 1 ·
Head-on Collision: Calculating SUV Velocity
- IAmSparticus
- · Replies 1 ·