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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Calculating Height for Shaun White's Snowboarding Trick
- green123
- · Replies 13 ·
Electrical circuit with resistors problem
- zeev55
- · Replies 4 ·
What is the equation for the length of a falling chain through a hole?
- kraigandrews
- · Replies 2 ·
How to find a charge on a sphere in equilibrium?
- sphys4
- · Replies 4 ·
Induced Emf in Rectangular Loop Problem
- ethanabaker1
- · Replies 3 ·
Calculating Force w/ Scientific Notation Answers Coming Out Wrong?
- mcdowellmg
- · Replies 2 ·
Contador climbing a 5° hill: applied force, work, power and acceleration
- green123
- · Replies 1 ·
Accelerating blocks with string: why include M₁ in the total mass?
- Dansuer
- · Replies 10 ·
Light reflection and electromagnetic wave problems
- namvip6666
- · Replies 7 ·
How to find velocity direction of point A on a rotating shaft
- Femme_physics
- · Replies 25 ·
Energy dissipated when car A collides with car B then car C
- Order
- · Replies 3 ·
Electromagnetic forces, finding alpha.
- sphys4
- · Replies 3 ·
Block of mass Rotational Problem
- AriAstronomer
- · Replies 1 ·
Work and displacement of the point of application
- iampaul
- · Replies 7 ·
Bernoulli's Equation and plugging water hole
- KKuff
- · Replies 2 ·
Thermodynamics Problem - the lake :P
- Planck const
- · Replies 6 ·
Finding the max range of a jump on the moon using kinematics
- garcia1
- · Replies 3 ·
Blocks on Spring without Friction
- wolves5
- · Replies 1 ·
Friction and Potential Energy in Incline Block Experiment
- wolves5
- · Replies 1 ·
Calculating Mechanical Energy on a Water Slide
- wolves5
- · Replies 1 ·
Electrostatic force between to spheres
- oronanschel
- · Replies 3 ·
Equilibrium: Minimum Cable Length
- ledphones
- · Replies 1 ·
Skidding Distance of a moving vehicle on asphalt gravel and grass
- Unknown2194
- · Replies 1 ·
Heat needed to boil 2300 grams of water from 17°C
- Mtray524
- · Replies 1 ·
Tension in tie-rod of a ladder with a student standing on it
- ledphones
- · Replies 1 ·
Conservation of momentum - bullet/pendulum
- z2420
- · Replies 3 ·
Travelling to a Star 40 Light Years Away: Time and Distance Calculations
- usahockey7
- · Replies 4 ·
Calculating Loops and Radius for a Cart
- wolves5
- · Replies 1 ·
Net Power Transfer by Radiation
- ethanabaker1
- · Replies 2 ·
Power and Exponential Equations
- beanus
- · Replies 3 ·
Solve for Building Height: Kinematics & Pythagorean Theorem
- garcia1
- · Replies 3 ·
Sketching a wave on a string from y = 15cm cos(πx/5.0cm - πt/12s)
- ajmCane22
- · Replies 4 ·
Calculating Energe stored in a Parallel Plate Capacitor
- abigailb55
- · Replies 1 ·
Using Gravitational Force Equilibrium to Calculate M2/M1 Ratio
- erykah722
- · Replies 2 ·
Projectile Motion- deriving formulas
- Haie101
- · Replies 1 ·
Transients(RC) elements in the circuit after commutation?
- builder_user
- · Replies 63 ·
Calculate car angle on the route
- hladon
- · Replies 2 ·
What is exactly is a non-conducting material ?
- flyingpig
- · Replies 2 ·
Inverse Laplace Transform, can't use partial fractions
- _diego
- · Replies 5 ·
Collision- Am I thinking about this the right way?
- Oldblood
- · Replies 2 ·
Why is 6k Ohms Reduced to 3k Ohms in Circuit Simplification?
- JieXian
- · Replies 2 ·
How Does Quantum Uncertainty Affect Dust Particle Trajectories?
- James98765
- · Replies 3 ·
Joules required to heat/how much heat is released
- jacob95
- · Replies 6 ·
Standing wave on a 1 m string with 6 antinodes at 350 Hz
- BarelyPassing
- · Replies 1 ·
Can you me with this (it is all about vectors )
- donniemsb_12
- · Replies 10 ·
Calculations of Significant Figures
- playgames
- · Replies 1 ·
4 Charges at the corners of a square
- Ortix
- · Replies 8 ·
Graph of inverse square law for radiation intensity
- Luke1121
- · Replies 3 ·
Projectile Motion of a Grasshopper Problem
- maff is tuff
- · Replies 3 ·
A Solid Cylinder rolling down a ramp
- Miu.
- · Replies 1 ·
Equilibrium: Brick on Cylinders
- ArticMage
- · Replies 1 ·
Why Do Objects P and Q Have Different Times to Reach Their Peak?
- stupif
- · Replies 11 ·
Dynamics: half-cylinder rolls without sliding.
- etotheix
- · Replies 1 ·
Force of interaction between two halves of a cylinder of charge.
- Lavabug
- · Replies 2 ·
What is the approximate diameter of the latex balloon after inflation?
- Dannbr
- · Replies 2 ·
Are you in an inertial frame on a rotating merry-go-round?
- aeromat
- · Replies 1 ·
Bulk Modulus Problem - Two solutions?
- najd
- · Replies 5 ·
Particle falling in earth's gravity with air resistance.
- kraigandrews
- · Replies 4 ·
At what angle does a 5 kg block start sliding with static friction coefficient 0.4?
- buttretler
- · Replies 3 ·
Elementary Problem: What Strength is Needed to Lift Mass m to Height h?
- Petar Mali
- · Replies 2 ·
Hydrostatic Problem: Three tube Manometer
- Mokha75
- · Replies 2 ·
Energy and Momentum: Elastic Collision of 2 Trains
- yummallory
- · Replies 1 ·
Angle Maxima and nodes and antinodes
- jamieXX96
- · Replies 3 ·
What is the maximum height reached by the 2kg mass in a modified Atwood machine?
- serverxeon
- · Replies 1 ·
Can Physics Formulas Prove Fault in a Car Accident?
- Lukasha
- · Replies 4 ·
Work done to move a test charge
- ND3G
- · Replies 13 ·
How to measure a force on a pivot (remedial)
- kindejj
- · Replies 7 ·
How to Calculate Minimum Height for Safe Parachute Deployment
- stupif
- · Replies 10 ·
Question : Thermal Equilibrium in 3 substances
- Rnck
- · Replies 1 ·
Tracing light rays from A to B using reflection and refraction
- jamieXX96
- · Replies 1 ·
Calculating Displacement of a Spring with Two Forces
- andreea92
- · Replies 2 ·
Dynamic question with a sliding car, looking for distance and power
- Femme_physics
- · Replies 19 ·
Bicycle rider down a hill (Dynamics)
- Femme_physics
- · Replies 5 ·
Finding max height for a rocket with upwards acceleration
- garcia1
- · Replies 4 ·
Solving Rod Slipping: Find x min with Tension & Friction
- eliassiguenza
- · Replies 4 ·
Calculating Force on Particle in Spring Setup
- AriAstronomer
- · Replies 4 ·
Finding the time that a ball is in air, using projectile motion kinematics.
- garcia1
- · Replies 2 ·
Conservation of momentum going insane here
- mdergance3
- · Replies 8 ·
Dividing over zero while calculating center of gravity - Getting error
- Femme_physics
- · Replies 24 ·
Find work done pulling sled with rope
- ObviousManiac
- · Replies 6 ·
Conservation of energy- setting it up
- Fellowroot
- · Replies 1 ·
Newton's 2nd law problem. I have trouble setting up eq. for gravity/weight
- Sentience
- · Replies 1 ·
OLUTION: Physics Term Paper Ideas for Mechanical Engineering Majors
- out2thow
- · Replies 3 ·
Finding Values of A, B, and C for Parabolas on a Velocity-Time Graph
- AlchemistK
- · Replies 5 ·
Melting point of lead at 100atm
- curto
- · Replies 14 ·
Calculating Minimum Speed for Ballistic Pendulum with Attached Mass
- ArticMage
- · Replies 2 ·
Calculating Centripetal Acceleration for a Frisbee in Circular Motion
- GensisLee
- · Replies 1 ·
How Does Newton's 2nd Law Apply in Different Force Scenarios?
- jactre
- · Replies 1 ·
Calculating the Mass of a Chlorine Anion Using Electric and Magnetic Fields?
- yummallory
- · Replies 1 ·
Magnetic Field and Electric Field Ranking Task
- jcfor3ver
- · Replies 1 ·
Finding the time for a splash to reach a bystander on a bridge
- garcia1
- · Replies 3 ·
Finding deceleration of a moving train
- garcia1
- · Replies 7 ·
Newtons second law about momemtum
- Nickles
- · Replies 4 ·
Say I know the x and y components, how do i go about finding the diagonal one?
- teggenspiller
- · Replies 1 ·
Average friction force on a falling apple
- ObviousManiac
- · Replies 4 ·
Electrostatic force between 2 distant parallel plates
- Physicianist
- · Replies 5 ·
Net Force on Top Block: 115.2 N
- wolves5
- · Replies 1 ·
Electric field, potential, and Charge Displacement
- teroenza
- · Replies 1 ·
Electromagnetic Radiation and Magnetic Waves
- Kbs13
- · Replies 4 ·
How can the work required to remove a solid ball from water be calculated?
- Copycat91
- · Replies 4 ·