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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Coefficient of Rolling Friction
- stokes
- · Replies 19 ·
Understanding Newton's Law of Universal Gravitation
- Ecterine
- · Replies 5 ·
How far from the edge of the cliff does the model rocket land?
- kswiss880
- · Replies 5 ·
Rates of pressure and volume change
- coding_delight
- · Replies 1 ·
Space station orbit gravity help
- pinkyjoshi65
- · Replies 18 ·
A mass spring system w/ recoil and Friction ?
- gills
- · Replies 3 ·
How Do You Solve Projectile Motion Problems Without Specific Values?
- wonderlove_525
- · Replies 1 ·
Boat Passenger Velocity on Stairs in 2D Motion Problem
- Enjoi_skater06
- · Replies 1 ·
Block on a frictionless incline
- pcandrepair
- · Replies 3 ·
Help finding potential energy of spring.
- jgibbon2
- · Replies 1 ·
Help, homework simple confusing question
- darewen
- · Replies 3 ·
Calculating Frictional Force on Inclined Block | 43 kg Mass | 19° Inclination
- grouchy
- · Replies 1 ·
Physics Tension Help: Homework Problem Solution
- lilshortwun
- · Replies 1 ·
Find the Moments of Inertia question
- aligass2004
- · Replies 11 ·
Masses & Pulley: Balancing Forces with mA, mB, mC
- KMjuniormint5
- · Replies 1 ·
Magnitude of the recoil velocity of the nucleus
- ledhead86
- · Replies 6 ·
This one has bothered me for a while (electric field)
- qz27
- · Replies 4 ·
What Are the Truths About the Center of Mass?
- sheri1987
- · Replies 2 ·
Newton's Second Law Particle Problem
- Seraph404
- · Replies 4 ·
Need help on freefall by 10:00 EST tonight Assignment is due today.
- Bensky
- · Replies 8 ·
Solve Kinetic Friction Coeff for Physics Homework
- shell4987
- · Replies 3 ·
Kinetic Energy of Pulley System with Unequal Weights
- sequenced_chaos
- · Replies 9 ·
Gauss's Law/Energy Problem with Concentric Spheres
- asiangrrl
- · Replies 8 ·
Why Does a Falling Particle Take 9/11 of Total Time to Cover Half the Distance?
- PiratePhysicist
- · Replies 3 ·
Solve Pulley on a Slope Homework: Mass of Counterweight in kg
- Jayce
- · Replies 5 ·
What Are the Force Components and Radial Acceleration in a Conical Pendulum?
- pcandrepair
- · Replies 9 ·
How Fast Was the Car Initially Traveling? | Physics Question
- graten2go
- · Replies 1 ·
Work & GPE Homework Solution: m, R, h
- shell4987
- · Replies 1 ·
What is the Torque on an Outstretched Arm with a 21.5 N Weight?
- BuBbLeS01
- · Replies 2 ·
Ideal Gas Law: Finding dP/dT, dT/dV & dV/dP
- Niles
- · Replies 5 ·
Calculating Horizontal Force for Displaced Hanging Object
- physicsgirlie26
- · Replies 2 ·
Understanding Centripetal Force in a Central Force System | Homework Statement
- raman911
- · Replies 2 ·
Calculating Maximum Speed and Initial Displacement of a Glider on a Spring
- physicsgirlie26
- · Replies 2 ·
What is the net torque on the pulley about the axle
- aligass2004
- · Replies 4 ·
How Do Rocket Acceleration and Car Forces Calculate in Physics Problems?
- willingtolearn
- · Replies 10 ·
Truck colliding with passenger car - Who will be more hurt?
- bugbug
- · Replies 2 ·
Find the Net Force on Ball A from Balls B & C
- bigtymer8700
- · Replies 5 ·
What is the initial acceleration of the rod's CM?
- BuBbLeS01
- · Replies 8 ·
Calculating Acceleration on an Inclined Ramp with Two Sliding Packages
- iHate Physics
- · Replies 10 ·
Help Relating Velocity to Force
- parkskier
- · Replies 2 ·
Measuring the wavelength and position of a photon
- zing478
- · Replies 4 ·
What is the velocity of a 178 gram object thrown 97 meters?
- Sevenzzz
- · Replies 5 ·
How do I solve problems involving rotational motion?
- BuBbLeS01
- · Replies 13 ·
Work done by a harmonic oscillator
- Hunt_
- · Replies 4 ·
Rate of revolution for a dryer?
- pcandrepair
- · Replies 13 ·
Banked Highway Curve: Calculating Maximum Safe Speed
- bikerkid
- · Replies 2 ·
Initiating Electron Movement: Magnetic, Gravitational, and Electric Fields
- razvees
- · Replies 1 ·
Solving Couple of Problems - Help Appreciated
- soknamal
- · Replies 1 ·
What are the calculations for resistors in parallel?
- sskakam
- · Replies 4 ·
Maximum velocity at the top of a roller coaster?
- pcandrepair
- · Replies 3 ·
How Do You Calculate Relative Speed of Particles Moving Orthogonally in Physics?
- pinky86
- · Replies 1 ·
Answer: Object with Most Mass: Goodyear Blimp
- Wil Biscardi
- · Replies 4 ·
Orbit, and Centrifuge questions
- iHate Physics
- · Replies 5 ·
Acceleration down slope constant or increasing?
- MourningTide
- · Replies 4 ·
Problem with projectiles launched horizontally
- Aracon504
- · Replies 9 ·
Finding height and time from angle and velocity
- wunderbred5
- · Replies 1 ·
How Do You Solve These Two Pressure Calculation Problems?
- Vingen
- · Replies 1 ·
Electron Motion in a Magnetic Field: Kinetic Energy Considerations
- razvees
- · Replies 1 ·
How Many Revolutions Does a Car Make From Rest to a Specific Acceleration?
- feedmeister
- · Replies 1 ·
System with varying mass - String
- Microzero
- · Replies 1 ·
What are some ideas for a physics-based game project?
- fnsac
- · Replies 1 ·
How to Calculate Work on a Satellite in a Gravitational Field
- Momentum09
- · Replies 8 ·
Calculating Revolutions with Changing Acceleration on a Curve
- mashawa
- · Replies 3 ·
Why dimensions can be treated as algebraic quantities?
- 0000
- · Replies 3 ·
What Are the Coordinates of the Circle's Center?
- KMjuniormint5
- · Replies 6 ·
Calculating Net Force from Change in Velocity and Time
- rcmango
- · Replies 5 ·
Why Am I Getting the Wrong Answer in My 2D Motion Projectile Problem?
- Crazystuntsdude
- · Replies 1 ·
Finding gravity through experimental data
- BayernBlues
- · Replies 1 ·
Small Elastic Ball Dropped from Height of 1.1m onto an Incline
- kimjh
- · Replies 3 ·
Calculating Mass of Star from Orbital Distance and Period
- bigtymer8700
- · Replies 1 ·
Weekend Assignment sheet - question
- mike_302
- · Replies 10 ·
Impulse and average force of ball
- polymerase
- · Replies 12 ·
Conceptual question about longitudinal waves
- Saladsamurai
- · Replies 2 ·
How Do You Calculate Elevator Cable Tension Accurately?
- polymerase
- · Replies 7 ·
Solving a Lab to Place the Cup for the Ball
- Goodwillie7
- · Replies 1 ·
What Force Must a Window Washer Exert to Ascend at Constant Speed?
- meganw
- · Replies 1 ·
Conservation of Energy and Moment of Inertia
- mit_hacker
- · Replies 2 ·
How Is the Scattered Photon's Energy Calculated in the Inverse Compton Effect?
- MathematicalPhysicist
- · Replies 7 ·
Calculate Minimum Speed for Ball to Clear Roof - Velocity Equation Help
- klm
- · Replies 5 ·
A: How far does a car traveling at 90.0 km/h take to stop?
- cherryrocket
- · Replies 6 ·
2 masses and 3 pulleys/accelaration
- menager31
- · Replies 29 ·
Confusion over an Inclined Plane Question
- Tyler_Cavan
- · Replies 14 ·
Solving the Question of Units for Dropped Mass on Surface
- PAU-L
- · Replies 1 ·
Mechanical Energy of 56.9kg Exercise Machine in 71.2m Hall
- map7s
- · Replies 4 ·
What would the greatest force on the vine be during the swing?
- shell4987
- · Replies 1 ·
Rate of Current: Solve Homework Equation for US Students
- belu00
- · Replies 2 ·
Basics: Object on Incline, Forces (Im Hopeless) Help
- MourningTide
- · Replies 4 ·
Rotation Dynamics: Finding Tension and Force Components in a Hanging Beam System
- shane1
- · Replies 6 ·
Direction of frictional force Help
- jumptheair
- · Replies 5 ·
Magnitude of Forces: Block Motion on a Ramp
- jumptheair
- · Replies 6 ·
Find H of a Ski Jump: Solving a Projectile Motion Problem
- chaotixmonjuish
- · Replies 3 ·
What is the velocity of a steel block after moving 1.20 meters?
- skandaluz
- · Replies 3 ·
Magnitude of Acceleration of ball
- bulldog23
- · Replies 7 ·
Kinematics 2D: Find Particle's Accel. Vector
- circuscircus
- · Replies 1 ·
Multiple Pulley Problem [SOLUTION]
- jumptheair
- · Replies 2 ·
Calculating Satellite Speed Based on Orbit Period
- phobia
- · Replies 1 ·
So fustrated and need some desperate help
- HighVoltage
- · Replies 1 ·
Clarifying the Calculation of Apparent and Actual Depth
- nblu
- · Replies 7 ·
Solving Fun Ski Area Problem: 3.67x10^7 W
- Vanessa23
- · Replies 3 ·
Done mult. times need the correct answer w/in an hr help
- Blink691
- · Replies 9 ·