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, Energy & Power: Solving 20 & 21 Problems
- McKeavey
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Calculate Fnet & Direction: 2 Cars & Big Airplane
- homevolend
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How long is an object in the air?
- soicuw
- · Replies 1 ·
Rms current in circuit with capacitor resistor and rms output
- a_ferret
- · Replies 5 ·
When will two balls be at the same height during 1-dimensional motion?
- ksinelli
- · Replies 1 ·
Meter Stick Special Relativity Problem
- harrietstowe
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How Do You Calculate the Specific Charge of an Electron Using Helmholtz Coils?
- aldrake
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How can I calculate the speed of two hockey players after a collision?
- BraedenP
- · Replies 2 ·
Special Relativity and Airplane Problem
- harrietstowe
- · Replies 9 ·
Rod with current and magnetic field
- gsquare567
- · Replies 5 ·
Understanding Torque: Find Force & Position Vectors
- VitaX
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Momentum Question: Initial Velocity of Earth & Why They Don't Move Away
- runningirl
- · Replies 7 ·
Is Dark Matter a Viable Topic for a Senior Project?
- tasveerk
- · Replies 1 ·
2 vibrating strings and harmonics questions
- pugtm
- · Replies 2 ·
Calculating Velocity of Boater in Relation to Shore
- homevolend
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Velocity and distance ratio problem
- JyN
- · Replies 1 ·
Center of mass x-coordinate of a metal plate
- cubejunkies
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Solve Rocket Propulsion Problem: a = ((Vr)(k))/(1-(kt))-g
- mopar969
- · Replies 1 ·
Doppler shift question (galaxy movement)
- psych2012
- · Replies 1 ·
Nonreflecting coating on a lens
- titan81
- · Replies 3 ·
Calculating Horizontal Forces in a Tug-of-War Using Newton's Third Law
- RepoMan
- · Replies 1 ·
Pulley System equilibrium problem
- Dcarroll
- · Replies 5 ·
Kinetic Energy Related to Potential
- Noms
- · Replies 3 ·
Motion of 3 Bodies Dynamics - Acclerations
- al_9591
- · Replies 5 ·
Young's Double Slit Experiment (Diffraction)
- jones268
- · Replies 1 ·
Thermodynamics: Gibs free energy
- ortegavs
- · Replies 1 ·
Understanding Muonium Energy Levels and Relativistic Velocities
- physgirl
- · Replies 5 ·
Blocks on a Pulley: Friction & Acceleration
- jti3066
- · Replies 12 ·
Inertia and Torque given Angular Velocity
- Lucidity
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Deriving Velocity and Acceleration from a Distance Vector in the x-y Plane
- mystmyst
- · Replies 7 ·
A question with masses and distance to travel, find the time to travel so far
- maphco
- · Replies 5 ·
How far does an electron drift in a copper wire carrying 140 A?
- megr_ftw
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Solve Gauss's Law Problems: q, E, ΦE
- zorro
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How to Calculate the Alpha Particle's Velocity After Collision?
- cheater1
- · Replies 6 ·
Electric flux through a hemisphere with uniform field
- xaer04
- · Replies 9 ·
Angular Momentum (Not the usual Turntable Question)
- divineyang
- · Replies 1 ·
Varying coefficient of friction
- eeriana
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Calculate frequency based on change in hanging mass
- EroAlchemist
- · Replies 3 ·
HOw to calculate the number of electrons from a given battery capacity
- Clark Kent
- · Replies 1 ·
Burning Off" 200 Cal: How High Must Student Climb?
- holoforce
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Can Energy Transfer Occur with Zero Total Energy Change in Newtonian Mechanics?
- fortaq
- · Replies 18 ·
Doppler Effect with acceleration Problem
- zorro
- · Replies 16 ·
Is this homework question missing information?
- ksinelli
- · Replies 5 ·
Anyone have a Physics Laboratory Manual?
- Flappy
- · Replies 6 ·
Instantaneous velocity of a object in projectile motion
- NightRunnerz
- · Replies 3 ·
How Does Your Weight on the Moon Compare to Earth?
- HarbingerGunn
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Object on table pulled by hanging object
- pnwguy17
- · Replies 3 ·
Solving Belt Around Pulleys Homework: 0.6 m/s, 1.44 m/s2, 1.56 m/s2
- pconn5
- · Replies 2 ·
The Electric Field of a Cylindrical Capacitor?
- seekingaeolus
- · Replies 5 ·
Monochromatic light and reflection
- okgo
- · Replies 6 ·
Property of differentials that allow you to ignore this directional change?
- Whitishcube
- · Replies 7 ·
Internal explosion, kinetic energy prob
- pb23me
- · Replies 2 ·
Interferance term, sum of 2 waves
- fluidistic
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How to Approach Conservative Force Problems on the XY-Plane?
- Kevii
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Special Relativity, Train Question.
- mmmboh
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Magnitude and Direction of Normal FOrce
- becsantos
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How Do You Calculate the Moment of Inertia for a Cone?
- RivalDestiny
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What Are the Peak Height and Total Airtime of a Tennis Ball Thrown Vertically?
- fparks
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What is the net torque given the angles of applied forces
- tatiana
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How Is the Spring Constant Calculated for Car Vibrations?
- EroAlchemist
- · Replies 2 ·
Solve Quadratics: Find Time for Rock Dropped from Washington Monument
- jubbly
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Find force with mass and variable position
- zrbecker
- · Replies 2 ·
Calculating Net Force with Multiple Forces Acting on an Object
- homevolend
- · Replies 2 ·
Solving a Physics Problem: Net Work Done on a Box
- APysics
- · Replies 2 ·
Freebody Diagram for Crate Lifted with Steel Cable at Decreasing Speed
- homevolend
- · Replies 3 ·
Physics question: Finding 2 angles with given tensions and mass
- MadameCassie
- · Replies 6 ·
Work-energy theorem and resistive forces
- RedDanger
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Rotational Angular Momentum of a Bowling Ball
- KatlynEdwards
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Quantum question - hamiltonian
- bon
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Projectile angle of approach and height of target?
- kLPantera
- · Replies 4 ·
Simplifying Quantum Mechanics with Dirac Notation
- bon
- · Replies 2 ·
Radius of the path of an accelerating object in uniform Circular motion
- Runaway
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Calculating Work on a Sliding Block: Mass, Speed, and Kinematics
- coolcalx
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Why is the momentum of a system conserved?
- piareround
- · Replies 1 ·
Work-energy theorem and Tension Force
- RedDanger
- · Replies 1 ·
Questioning Quantum Rules: Is A(A or B) = A(A) + A(B)?
- bon
- · Replies 12 ·
Do the students exert a net torque on the rotating disc?
- brushman
- · Replies 2 ·
Tension and torque of a suspended scaffold
- physics_10
- · Replies 1 ·
Circular Motion/Work Homework: Finding Work
- laurenwings5
- · Replies 2 ·
Sled pulled at 53° to horizontal on snow at constant velocity
- becsantos
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Then F = Delta P/Delta T = (-7.2 kgm/s)/(0.002s) = -3600 N
- reincarnate
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How to Calculate Position and Velocity of a Football as a Function of Time?
- jti3066
- · Replies 8 ·
Solving for Distance and Minimum Coefficient of Friction
- jti3066
- · Replies 10 ·
X vs t graph for a car that's moving away from the origin and slowing down
- LenaS
- · Replies 18 ·
A triangle's rotational kinetic energy
- aitee
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Calculating Mass and Velocity in Elastic Collisions: Lab Cart A and B Example
- runningirl
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What is the Speed of a Thrown Ball at its Highest Point and its Maximum Height?
- pb23me
- · Replies 8 ·
Work done by Friction on an Inclined Plane
- fajoler
- · Replies 2 ·
Plagued by Snell's law and geometry
- okgo
- · Replies 1 ·
Finding the forces between two masses
- Dcarroll
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Ball drops onto rod on a fulcrum and launches another ball into the air
- graustet
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Including kinetic friction into Work of spring
- Ambidext
- · Replies 11 ·
Effect of TIME on SPECIFIC HEAT?
- donkeycopter
- · Replies 2 ·
Understanding Energy Conservation in a Hanging Spring System
- divineyang
- · Replies 6 ·
Work out entropy change of the universe
- bon
- · Replies 10 ·
Calculating Speed and Time Between Two Vehicles Heading to Mars
- jono90one
- · Replies 3 ·
Calculating Temperature of Insulated Room Base - Thermal Conduction Homework
- thereddevils
- · Replies 3 ·
Maximum Force on Inclined Plane to keep object stationary
- wainker
- · Replies 1 ·
How Do You Calculate the Magnitude of the Second Force?
- ancase21
- · Replies 1 ·