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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Force exerted on one object by another
- anti404
- · Replies 2 ·
Work, Energy and Power - Variable Acceleration
- samwilliamh
- · Replies 5 ·
Millikan oil drop experiment potential difference
- AMMax
- · Replies 1 ·
Internal Energy of an Expanding Gas
- triamanda
- · Replies 2 ·
What Is the Apparent Weight of a Person at the Bottom of a Ferris Wheel?
- mybrohshi5
- · Replies 1 ·
Telephone communications (easy question)
- Physics321
- · Replies 4 ·
Potential of Two Charged Spheres
- hover
- · Replies 8 ·
How Do You Calculate the Magnetic Field Around a Wire?
- dev-hud
- · Replies 1 ·
Magnetic Field Calculation for Current-Carrying Wire
- creativepinky
- · Replies 1 ·
The friction force comes from where?
- mrsobhan
- · Replies 6 ·
Torque graph; finding angular velocity
- animanga008
- · Replies 5 ·
Finding electric potential using charge density
- AMMax
- · Replies 1 ·
How Do You Calculate the Rotation Rate of a Space Station Wheel?
- Ninjaku
- · Replies 3 ·
Calculate the Mass of a Single Match with a Ruler and Matchbox
- fawk3s
- · Replies 9 ·
Pulses Superposition: After 5s & 1cm/s Velocity
- tanzerino
- · Replies 4 ·
Mass on spring up a ramp over a chasm
- emam03
- · Replies 2 ·
Maximizing voltage across a load resistor?
- Mugged
- · Replies 4 ·
How to Calculate Forces and Distances for Loaded and Unloaded Lorries?
- RoryOBigtool
- · Replies 12 ·
What is the coefficient of friction between surface and the mass?
- yss83
- · Replies 1 ·
Dynamic friction and spring force
- KFC
- · Replies 14 ·
Force on a Point Charge: Finding the Location of a Third Charge
- acherentia
- · Replies 1 ·
How do I find the Moment of Inertia?
- user_name12
- · Replies 1 ·
Elastic collision of a ball on a wire
- jahrollins
- · Replies 10 ·
How many electrons are transferred?
- Karenbby
- · Replies 2 ·
Rotational Inertia of Disk2: 16I or 8I?
- The_Journey
- · Replies 2 ·
Two objects connected by a cord over a pulley
- chudd88
- · Replies 2 ·
How Does Charge Distribution Affect Electric Fields in Nested Spheres?
- reising1
- · Replies 1 ·
Relationship Between Different Capacitors for Different Applied Voltages
- malindenmoyer
- · Replies 1 ·
Eclipsing binary stars question
- warfreak131
- · Replies 1 ·
Gravitational Orbits: Circular vs. Elliptical
- Fredley_Banyo
- · Replies 9 ·
Gauss's Law and Finding the electric field
- musicmar
- · Replies 3 ·
Finding the Speed of a Mass on an Oscillating Spring
- shnav34
- · Replies 10 ·
Finite Well and Schrodinger's Equation
- yayz0rs
- · Replies 2 ·
Work Done by Librarian on 2.2kg Book
- DeeAussie
- · Replies 1 ·
Calculate Magnetic Force (B) for Electron Motion
- jrollz316
- · Replies 1 ·
Calculating Work and Mechanical Energy - Block on Ramp
- mimib1230
- · Replies 5 ·
Calculating Minimum Work for a Car on an Incline with Friction
- coffeecake
- · Replies 1 ·
Speed of car related to momentum
- songoku
- · Replies 10 ·
Voltage of a charged conducting sphere
- maccha
- · Replies 1 ·
Work energy theorem for falling object
- cdotter
- · Replies 9 ·
Why are voltages across wires close to zero?
- Kourtney0115
- · Replies 4 ·
Physic:Calculating mass of one rail car?
- okgo
- · Replies 2 ·
Acceleration and Algebra, 2 ppl going towards each other
- AsianTheory
- · Replies 13 ·
Snowball Projectile Motion Calculation: Time, Height, and Velocity
- barthayn
- · Replies 1 ·
Gauss's Law - electric flux through a spherical shell
- csteff
- · Replies 1 ·
How can I find the current for each resistor in this circuit?
- Octoshark
- · Replies 14 ·
How Long Does It Take for a Space Tug and Asteroid to Meet When Pulled Together?
- v12alp
- · Replies 12 ·
Conservative Forces and work done
- cinderblock
- · Replies 1 ·
Drawing FBD & Splitting Force Components - Quick Tips!
- AirForceOne
- · Replies 1 ·
Pushing books - force, kinetic and static friction
- mybrohshi5
- · Replies 11 ·
What is the vertical acceleration of the projectile?
- OblivionMage
- · Replies 1 ·
Electric field / net charge on a cylindrical shell
- csteff
- · Replies 4 ·
What is the potential difference between points A and B?
- REDSOX
- · Replies 4 ·
Resistor currect and voltage drop in a circuit.
- davidepalmer
- · Replies 4 ·
Charged capacitor, electric field
- DeadFishFactory
- · Replies 5 ·
Accel of Crate Pushed at 30° Below Horizon
- jwxie
- · Replies 5 ·
Find Max Velocity & Altitude of Rocket: Mass, Thrust, Burn Time
- strttnr
- · Replies 4 ·
Decomposing Matrices into Elementary Matrices: A Reverse Approach
- _Steve_
- · Replies 2 ·
Calculate the direction and magnitude problem
- Cudi1
- · Replies 18 ·
Police Car Overtaking Speeder: How to Calculate the Time and Distance?
- Monocerotis
- · Replies 1 ·
Electric field between two charges in 1D
- Tekee
- · Replies 2 ·
Find speed with tension, mass given. thanks
- MissPenguins
- · Replies 13 ·
Induced EMF in a Pair of Circular Wires with Changing Magnetic Field
- adaschau2
- · Replies 1 ·
How Does Pipe Tapering Affect Pressure and Flow Rate in Fluid Dynamics?
- partech
- · Replies 1 ·
Solving for Lagrangian Forces in Newton's Bucket Problem
- int.uition
- · Replies 2 ·
Question about moment of interia
- hellbike
- · Replies 1 ·
Coriolis Force on a Rotating Rifle Barrel
- Oscur
- · Replies 4 ·
Spacecraft landing on an alien planet
- squarky
- · Replies 1 ·
Gauss' Law symmetry of charge distribution
- BadaBadi
- · Replies 4 ·
When does average velocity equal instantaneous velocity?
- jwxie
- · Replies 1 ·
Inclined planes + vector questions
- Rhine720
- · Replies 9 ·
How to Calculate Magnetic Field Strength Between Parallel Wires
- Kawakaze
- · Replies 2 ·
Determine g from least squares fit line?
- noname1
- · Replies 11 ·
Newton gravitational potential theory
- look416
- · Replies 4 ·
Movable mirror of a Michelson interferometer
- oaly
- · Replies 4 ·
Car door shutting at a certain acceleration
- Mastablade
- · Replies 1 ·
How Long Does It Take a Comet to Travel 80 Degrees Around the Sun?
- Mastablade
- · Replies 1 ·
Calculating Angle of Deviation in a Prism
- allstar123
- · Replies 2 ·
Seemingly easy problem having to do with current?
- csimon1
- · Replies 1 ·
Harmonics: Obtaining, Stationary Waves & Probability
- sachin123
- · Replies 3 ·
Calculating a Tennis Player's Ball Speed
- bd24
- · Replies 4 ·
Centripetal Force Homework: Total Energy, Speed, Tension & Distance
- sobek
- · Replies 2 ·
Weight decreased by the combined pull of the sun and moon?
- bd24
- · Replies 4 ·
How Much Work Does a Battery Charger Do to Recharge a 5V Battery?
- anonymousphys
- · Replies 3 ·
Work done by internal forces in gravitation
- pritamthakur
- · Replies 1 ·
How Much Force to Apply When Doubling the Distance of a Mass on a Stick?
- The_Journey
- · Replies 5 ·
Magnetic field of a proton in circular orbit
- mjau001
- · Replies 1 ·
Calculating Centripetal Acceleration Angle for a Race Car on a Circular Track
- H2Owned
- · Replies 1 ·
Tension and Weight of Ball (Mg)
- mparsons06
- · Replies 1 ·
Net Force and Motion Homework Solutions
- mparsons06
- · Replies 1 ·
Controlled Variables in Exp to determine Refractive Index
- Astar
- · Replies 2 ·
Attempt 2 - Incorrect - 4.50 sBlock on Incline: Calculate μk &Travel Time
- mparsons06
- · Replies 1 ·
Solve Two Motion Issues: Boat & Shell Hit Target
- barthayn
- · Replies 3 ·
Gravitational Orbits: True Statements about Circular & Elliptical Orbits
- Fredley_Banyo
- · Replies 1 ·
Atwood Machine: Forces & Motion True/False Quiz
- huybinhs
- · Replies 2 ·
Finding Heat and Work in a Three-Step Gas Cycle
- CurtisB
- · Replies 4 ·
What speed should you push the box
- mullets1200
- · Replies 1 ·
Physics Experiment Tutorial: Understanding Tray Demonstration | Homework Help
- ahhppull
- · Replies 4 ·
Gravitation Problem, velocity of object on impact
- rzwhipple
- · Replies 4 ·