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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Electric Fields, finding a charge
- glid02
- · Replies 2 ·
Solving a Venturi Device for Height of Mercury Rise
- laminar
- · Replies 1 ·
Magnetic Fields and Acceleration
- erik-the-red
- · Replies 4 ·
Normal Force of a skateboarder at the bottom of a circular ramp
- map7s
- · Replies 2 ·
Why Does Mastering Physics Show an Error in My Potential Energy Calculation?
- fcman
- · Replies 1 ·
How Do You Calculate Tension in a Cable and Determine Mass with Given Variables?
- AFG34
- · Replies 4 ·
Maximum force to prevent 10kg block sliding on 5kg bracket
- p_o_o_k_i
- · Replies 3 ·
Is the Resistance of this Easy Circuit Really Just 10 Ohms?
- jmcgraw
- · Replies 3 ·
What is the Speed of a Bead on a Circular Wire in Space?
- p_o_o_k_i
- · Replies 2 ·
Calculate Change in Momentum of Mass Projected into Air
- mikefitz
- · Replies 10 ·
Force Necessary to Start Moving Crate: 167 N
- Pencil
- · Replies 3 ·
What Is the Angle Between Initial Velocities in a Perfectly Inelastic Collision?
- bearhug
- · Replies 1 ·
Finding force magnitude and x-intercept from moments at three points
- asteg123
- · Replies 1 ·
How Can I Tackle Basic Physics Problems with Limited Guidance?
- Dazed
- · Replies 5 ·
How can the Equations of Motion be used to calculate missing parameters?
- staceyw
- · Replies 1 ·
What is the speed of the car in metres per second?
- Katie17
- · Replies 7 ·
Why Does an Object's Apparent Depth Change in Water?
- app
- · Replies 9 ·
Strength of earth's magnetic field
- Amith2006
- · Replies 2 ·
What is the Final Velocity of a Baseball After Being Hit by a Bat?
- mikefitz
- · Replies 6 ·
Forces on spinning gyroscope shaft with precession
- John O' Meara
- · Replies 3 ·
Looking for equation for change in momentum
- jjg242
- · Replies 6 ·
Solving Lens Problem: Eyeglasses w/ 2 Converging Lenses
- Alt+F4
- · Replies 4 ·
Greater Force= Greater Work; box up ramp
- katysmith
- · Replies 3 ·
Is There Friction Between Objects Without an Exerted Force?
- Dorothy Weglend
- · Replies 4 ·
How Does Radius Affect Centripetal Force in Your Experiment?
- Vesper89
- · Replies 4 ·
Find the Coffiecient of Rolling Friction
- kenau_reveas
- · Replies 3 ·
How Do You Solve for V2 in a Vector Acceleration Problem?
- riodarra
- · Replies 2 ·
Find final velocity of rocket with 90 m/s² acceleration over 2 km
- bayer
- · Replies 14 ·
Problem - Newton's second law applied to uniform circular motion
- opticaltempest
- · Replies 5 ·
Calculating Drag Force for Skydiving Problem
- kenau_reveas
- · Replies 19 ·
Kirchoff's 2nd Law : Sign taking method
- Prince Stephen Ranji
- · Replies 1 ·
How Do You Calculate Entropy Change in a Reversible Cyclic Process?
- Knight
- · Replies 3 ·
Pogo Stick and Spring Constants
- techninja
- · Replies 5 ·
How Long to Move a Box with Angled Force and Friction?
- starfish794
- · Replies 5 ·
Why Does Friction Force Matter When Applying F=ma to a Vehicle?
- frs2fh
- · Replies 9 ·
Ball moving down roof - kinematics
- bluevirgo80
- · Replies 1 ·
Air Resistance and Gravitational Force
- Soaring Crane
- · Replies 1 ·
Skier down a slope and potential energy
- rkslperez04
- · Replies 2 ·
How Can You Calculate t1 and t2 for a Rocket-Powered Sled on Ice?
- cy19861126
- · Replies 3 ·
Explain to me the concept of equilibrium
- td04
- · Replies 2 ·
What Is Tarzan's Maximum Tolerable Speed When Swinging on a Vine?
- jordanb23
- · Replies 1 ·
How to Solve Conservation of Energy Problems?
- rkslperez04
- · Replies 2 ·
Problem (acceleration/velocity/distance)
- sapiental
- · Replies 1 ·
Net force from two people pulling a mule at different angles
- AznBoi
- · Replies 7 ·
What is the force the pole exerts on the ball?
- Melissa013
- · Replies 3 ·
How do you find average velocity from a position-time graph?
- ihatephysics
- · Replies 2 ·
Solving Turbine Force: Vo = +21 m/s, Vf = -21 m/s, 27.2 kg/s
- mikefitz
- · Replies 2 ·
Convert W2 / NJHz to mks and simplify
- mks
- · Replies 3 ·
Spring-Loaded Gun-spring constant
- gaimon
- · Replies 1 ·
Calculate Time to Lift Piano: 132kg Piano, 7.3m High, 470W Power
- mikefitz
- · Replies 3 ·
A hard Physics Howework probelm
- asdfasdfwfv
- · Replies 12 ·
Scaling up a flea's jump height by a factor of 550
- sebmista
- · Replies 3 ·
Calculating Speed of Ball Leaving Spring Gun
- mikefitz
- · Replies 3 ·
What Is the Landing Distance of the Enmeshed Spy Plane and Rocket?
- asdifnlg
- · Replies 2 ·
Significant figures in addition and multiplication
- Dazed
- · Replies 6 ·
A military helicopter dropa BOMB
- Fanjoni
- · Replies 7 ·
Why do some materials stick and others repel on a Van de Graaff generator?
- KyoPhan
- · Replies 6 ·
How do I find the treasure without encountering the angry dragon?
- sunbunny
- · Replies 2 ·
Linear Speed and Circular Motion Problem
- Cheapo2004
- · Replies 2 ·
Force and acceleration homework: graphs, Atwood machines, free-body diagrams
- sythetickitty
- · Replies 3 ·
Atwood machine with friction on horizontal surface
- 007banshee
- · Replies 1 ·
Angular Momentum Problem of turntable
- viper930
- · Replies 1 ·
Mass of Planet X in Solar Masses
- srivens
- · Replies 1 ·
What are the fundamentals of qubits in quantum computing?
- duki
- · Replies 1 ·
Hard Projectile Motion Problem.
- AznBoi
- · Replies 31 ·
Calculating Free Fall Time Using "g" Only
- Ahmedstein
- · Replies 26 ·
Solve Vector Problems - Check My Answers Correct?
- AznBoi
- · Replies 9 ·
Equilibrium Wedge Problem: Solving for Force Exerted on Plates by Resting Ball
- Destrio
- · Replies 2 ·
Semi-hard Projectile Motion Problem.
- AznBoi
- · Replies 9 ·
Ball thrown vertically upward at 25.0 m/s: height, time, and speed
- Malicious
- · Replies 6 ·
Coefficient of rolling friction from bicycle tire deceleration
- kenau_reveas
- · Replies 1 ·
Magnitude of the angular momentum?
- erik-the-red
- · Replies 2 ·
How Are Forces Related When Lifting a Heavy Crate?
- Soaring Crane
- · Replies 1 ·
Equilibrium Uniform Ladder Problem
- Destrio
- · Replies 4 ·
Determine whether work is scalar or vector.
- alias25
- · Replies 4 ·
Are My Calculations for Tom the Cat's Projectile Motion Correct?
- AznBoi
- · Replies 2 ·
Some work and elastic energy problems
- Byrgg
- · Replies 3 ·
The Rayleigh Criterion and the Wavelength of Light
- Alt+F4
- · Replies 2 ·
Projectile range of signal flare at 55° on Earth and Moon
- Fanjoni
- · Replies 2 ·
What Does a Non-Zero Y-Intercept on a Force vs. Acceleration Graph Indicate?
- Soaring Crane
- · Replies 8 ·
Tricky radiation half-life question
- lando45
- · Replies 4 ·
Cable car with counterweight descending a hill
- Kalie
- · Replies 1 ·
How to draw vector diagrams for physics problems
- ch3570r
- · Replies 1 ·
Solving Ant's Tightrope Wave Problem
- jamesm113
- · Replies 3 ·
How Much Time is Saved by Increasing Speed from 100 km/h to 110 km/h?
- Incog
- · Replies 2 ·
Calculating Time It Takes for Ball to be Overtaken
- Cole07
- · Replies 4 ·
How Do You Calculate Percent Disagreement?
- rachelle
- · Replies 2 ·
What is the pressure at the point where the pipe's diameter is 10cm?
- laminar
- · Replies 1 ·
Motion on Incline Problem - Find the Distances Marked Every 2.5s
- Cole07
- · Replies 31 ·
What Are the Effects of Changing Flux on Eddy Currents in Metals?
- jubba
- · Replies 6 ·
A Few Problems: MAGNETISM AND OPTICS
- app
- · Replies 5 ·
For the Doc JK some more questions using Centripetal Force
- mmiller39
- · Replies 4 ·
Stopping Distance: Car F, G, and H
- Soaring Crane
- · Replies 2 ·
Work in rectangular and polar coordinates: result is not the same?
- SNES
- · Replies 1 ·
Motion on Incline Problem: Find 1st Mark in 2.5s
- Cole07
- · Replies 1 ·
Calculate the force of a spring
- parm12
- · Replies 1 ·
Circular motion - pointers of a clock
- maskd
- · Replies 3 ·
Tricky Pulley System: How to Solve for Tension and Acceleration?
- Coldie
- · Replies 11 ·
Solving Tough Question: Alaskan Rescue Plane Drops Emergency Rations
- yankee
- · Replies 1 ·
Calculating Tangential Speed: Understanding Angular Speed and Centripetal Force
- yankee
- · Replies 1 ·