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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Light Refraction: Find Angle of Refracted Ray
- bfr
- · Replies 3 ·
Determining the position from the velocity
- zakare
- · Replies 6 ·
How Does Doubling the Distance Affect Light Intensity?
- oceanflavored
- · Replies 4 ·
What Is the New Force Between Two Charges if the Distance Is Doubled?
- oceanflavored
- · Replies 6 ·
Collision & Momentum: Observing Elasticity, Momentums & Velocities
- applesnjanono
- · Replies 10 ·
Magnification and focal length
- Celer
- · Replies 8 ·
What part of a car uses the principle of optics to function?
- victor3010
- · Replies 24 ·
How to find coefficient of kinetic friction please?
- studentmom
- · Replies 10 ·
How Efficient and Effective Are Typical Three Phase Induction Motors?
- Aaron321
- · Replies 1 ·
What Is the Weight of a Block on an Inclined Plane?
- AnkhUNC
- · Replies 20 ·
Relative motion of a light plane
- Kruz87
- · Replies 6 ·
Guy jumping off a building HELP
- SUXinPHY
- · Replies 10 ·
Calculating Table Force for 77N Box and 30N Weight
- SUXinPHY
- · Replies 4 ·
Calculate Velocities & Accelerations Around Circle (Radius 5.2m)
- Noir
- · Replies 9 ·
Coeffecient of static friction problem
- AnkhUNC
- · Replies 16 ·
Find Mass of Earth - Solve Gravitational Formula
- Razza
- · Replies 9 ·
Rotation with Newtons second law and work energy
- Jason03
- · Replies 8 ·
Basic knematics question i just cant get right
- devanlevin
- · Replies 10 ·
How Do I Calculate the Speed at Point D with Translation and Rotation?
- Jason03
- · Replies 8 ·
Kinematics Homework: Solving for Velocity and Acceleration
- asi123
- · Replies 1 ·
Build a Spaghetti Bridge for 11th Grade Physics
- Mendax
- · Replies 7 ·
What's Wrong with this Argument? Understanding the Physics of Work
- Riddl3r
- · Replies 3 ·
What's Wrong with This Argument? Problem-Solving a Homework Statement
- Riddl3r
- · Replies 1 ·
Kinematics and proportionality.
- raphile
- · Replies 3 ·
Gravitational Force on bathroom scales
- Celer
- · Replies 5 ·
Help With Problem About 1-D Motion
- Pat2666
- · Replies 5 ·
Fastest Planet Rotation: Calculating Period using Volume & G
- john_simpson
- · Replies 1 ·
Approximation of electric field of uniform charged disk
- yoran
- · Replies 3 ·
Extra Energy from Photon Absorption
- nothing123
- · Replies 2 ·
Kinematics: a question about a falling mollusc.
- raphile
- · Replies 2 ·
How Does a Bead Behave on a Rotating Hoop?
- VRCAM
- · Replies 5 ·
Why must a geostationary satellite be placed above the equator?
- Kushal
- · Replies 5 ·
Simulated gravitational acceleration
- stlswitz
- · Replies 1 ·
Mometum and how to find an initial and final momentum
- jamiescience
- · Replies 5 ·
Moment of Inertia of a Ring: Formula and Application
- getneotome
- · Replies 4 ·
Voltmeter Practical: Why is Reading Higher with Load?
- minifhncc
- · Replies 4 ·
Calculating Momentum of a Spacecraft with Thruster Firing?
- jamiescience
- · Replies 6 ·
Energy transformations
- Kushal
- · Replies 2 ·
Angular Accelerations of Rigid Bodies with Applied Forces
- KBL-8
- · Replies 4 ·
Working out Coefficient of Friction HELP
- Razza
- · Replies 6 ·
Measuring the moment of inertia
- HclGuy
- · Replies 5 ·
The fulll problem to my momemtum problem .
- jamiescience
- · Replies 2 ·
Shopping Cart Force Calculation
- Cursed
- · Replies 7 ·
How Do Resonance Lengths Determine Sound Wavelength in Open Air Columns?
- vertciel
- · Replies 3 ·
How Do You Calculate the Acceleration of a Weight and Tension in a Yo-Yo System?
- lehel
- · Replies 2 ·
Finding n for Constant*s^n: Homework Help
- raphile
- · Replies 3 ·
Equation for the Period of a Pendulum
- Spoon.
- · Replies 3 ·
Calculating the Speed of a River Current Using Relative Velocity
- AnkhUNC
- · Replies 5 ·
Thermodynamics heat absorption problem
- panther7
- · Replies 1 ·
How Far Will a Toboggan Slide on a Snowy Hill?
- panther7
- · Replies 2 ·
How Do Angles Affect Momentum and Kinetic Energy in Physics Problems?
- Ms June Day
- · Replies 1 ·
Elevator Tension Calculation: Finding Force with Fnet and Newton's Laws
- t00kool
- · Replies 1 ·
How to get a Fnet vs. time graph from a velocity vs time graph.
- t00kool
- · Replies 1 ·
Uniform Rope Mechanics Problem: Finding Tension at a Distance x | Explained
- torquerotates
- · Replies 2 ·
Standing wave interference pattern problem
- DarkVoid
- · Replies 3 ·
Calculation of Horizontal Velocity, Initial Vertical Speed
- H3lpPlz
- · Replies 2 ·
Electric Potential & Electric Field: Solving Questions
- minifhncc
- · Replies 5 ·
What Should Be the Radius of Curvature of the Other Surface?
- lostfan176
- · Replies 1 ·
Intergalactic Cruiser: Unraveling Relativity Problem
- Binxie08
- · Replies 2 ·
Simple Magnetic Field Increase/Decrease question.
- Metalsonic75
- · Replies 4 ·
Physics Problem: Flower Pot Freefall Calculation for Safety
- maxwilli06
- · Replies 3 ·
Solving a Gr. 11 Physics Assignment: Finding Vertical Displacement of a Potato
- Gombay
- · Replies 1 ·
Calculating Work Potential and Power Conversion of a 50kg Box
- sonofahb
- · Replies 16 ·
Work-Energy Help: Solve for Object Lifted from Floor to Height
- MEAHH
- · Replies 1 ·
How Do I Check if My Physics Final Answers are Correct?
- Reshims
- · Replies 8 ·
How Do You Calculate the Initial Distance in a Spring Compression Problem?
- krisrai
- · Replies 7 ·
How Would Life Change If Earth's Gravity Was Halved?
- t.mil
- · Replies 1 ·
Quick question on universal gravitation - I think I'm right - need clarifica
- Bensky
- · Replies 3 ·
How to demostrate k in Hook' s law?
- Ignition
- · Replies 1 ·
Relativity and pi-meson decay: Finding the Momentum of the Muon
- Vuldoraq
- · Replies 8 ·
How Is Kinetic Energy Affected by Different Fall Speeds?
- rexhi
- · Replies 3 ·
Variance of resistance with significant current flow
- clearwaterkid
- · Replies 8 ·
Parallel-plate capacitor: Two dielectric materials
- phyzmatix
- · Replies 8 ·
Calculating Length Increase of Aluminium Bar Due to Temperature Change
- speedy46
- · Replies 27 ·
What Colors Are Reflected and Transmitted in Thin Layer Optical Coatings?
- fredrick08
- · Replies 9 ·
How Do Newton's Laws of Motion Apply to Everyday Life?
- doc.madani
- · Replies 1 ·
Does anyone have previous AP physics B test
- mcspanks107
- · Replies 2 ·
What Are the Escape Velocities for Callisto and a Neutron Star?
- warmfire540
- · Replies 1 ·
Electrostatic Forces on Particles
- DMac
- · Replies 3 ·
Collisions of molecules: Calculating Collision Rates in a Gas Box
- fredrick08
- · Replies 4 ·
Calculating Magnetic Field from Parallel Wires
- DMac
- · Replies 2 ·
How does a loop of wire in a generator produce alternating current?
- bruinboy28
- · Replies 1 ·
Constructing a Physics Demo with Household Items
- famous
- · Replies 1 ·
Hubble Space Telescope Orbital Period
- warmfire540
- · Replies 1 ·
What is Young's modulus for this alloy of titanium?
- badwallpaper0
- · Replies 4 ·
Question on the speed of light.
- MoreZitiPlease
- · Replies 3 ·
Earth Radius Shrunk to 4.13 x 10^12 for 50 km.h-1 Escape Speed
- warmfire540
- · Replies 2 ·
Moment of inertia of a sign consisting of ring and rectangle
- rock.freak667
- · Replies 10 ·
Magnetism and Eletrocmagnetism Hwk-Fairly easy
- bruinboy28
- · Replies 9 ·
Calculating Work in Swimming: Science Fair Project Guide
- catherines
- · Replies 4 ·
How Close Will an Alpha Particle Get to a Gold Nucleus?
- DMac
- · Replies 5 ·
What average acceleration es the sled experience?
- adv
- · Replies 2 ·
Finding Earth's atmosphere mass from air density and pressure
- nikita33
- · Replies 1 ·
Electron deflection between parallel plates with missing distance
- DMac
- · Replies 4 ·
Calculating Kinetic Energy of Meteor
- vandorin
- · Replies 3 ·
Particle Collision: Calculate Photon Wavelength
- Air
- · Replies 1 ·
Torque on rod with electric field & proton
- clearwaterkid
- · Replies 1 ·
Discover the Frequency of an Echo Using the Doppler Effect - Solved!
- Dreams2Knight
- · Replies 6 ·