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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Couple on rod in electric field
- PhysicStud01
- · Replies 19 ·
Finding the work done on a cutting tool
- physicsquestion
- · Replies 24 ·
What is the Velocity of the Ball Leaving a Racket Moving at 60 mph?
- mathguy2
- · Replies 7 ·
How Do You Calculate Turntable Rotation and Acceleration?
- thegoosegirl42
- · Replies 5 ·
What are the velocity & position of an object as function of time?
- DANIneplanets
- · Replies 3 ·
Understanding Work, Energy, and Displacement in a Spring System
- Joe Armas
- · Replies 15 ·
What is the volume of air swept out by a moving plywood sheet on a track?
- mathguy2
- · Replies 5 ·
Resistance, wire thickness, fuses, current -- Confusion
- Barclay
- · Replies 2 ·
Derivations of specific values in Physics
- Ben Nibarger
- · Replies 9 ·
Wavelength, period of vibration in seconds
- Rick2015
- · Replies 6 ·
Thermistor cooled in water and effect of temperature
- Barclay
- · Replies 1 ·
Ratio between electron to proton
- waver.
- · Replies 4 ·
Finding the Height of a Dropped Flower Pot
- sorressean
- · Replies 17 ·
Vessel with liquids having different refractive index
- sylwesh98
- · Replies 18 ·
Rotation period of electron orbiting a proton
- SorenaJ
- · Replies 3 ·
Finding frequency and phase shifts for two sinusoidal currents
- ThisVelvetGlove
- · Replies 1 ·
Find time for 4 kg block to drop 7 m with 5 kg block on table
- liquidheineken
- · Replies 4 ·
How Do You Calculate the Shortest Flight Path Between Two Points on the Globe?
- TheBestMiller
- · Replies 10 ·
Electric Potential Energy and micro-joules
- 8008jsmith
- · Replies 3 ·
Velocity/Acceleration relation w/ constants
- snovak216
- · Replies 12 ·
What Happens When ω²LC=1 in an RLC Circuit?
- whatisreality
- · Replies 3 ·
Rollercoaster normal force question
- leejos16
- · Replies 9 ·
Cylinder over a step -- Is the normal force radial?
- Sol_Solved
- · Replies 5 ·
Work and Energy of carnival dinner
- kaspis245
- · Replies 2 ·
Motor and generator on rotating support with crossed belt
- V711
- · Replies 12 ·
Calculate the velocity of the system After the collision
- MrJoseBravo
- · Replies 6 ·
Acceleration Equation - Two Objects Moving Forward; Meeting Point?
- zak.hja
- · Replies 7 ·
Work needed to move alpha particle
- fruitbubbles
- · Replies 5 ·
Amount of force a motor can make in 35s
- PsychoSya
- · Replies 2 ·
Calculating Force Table Vector Equilibrium
- kylansb
- · Replies 3 ·
Calculating Pluto's velocity (angular momentum)
- J3551C4
- · Replies 2 ·
Maximum tangential force on cylinder without rotation
- minimario
- · Replies 14 ·
Use superposition to solve for vs in the circuit
- sugz
- · Replies 3 ·
Two cans rolling down a ramp with the same mass
- henry3369
- · Replies 10 ·
Radial, tangential and angular acceleration in rotating bodies
- henry3369
- · Replies 6 ·
Finding unknown applied force with gravity and acceleration vectors
- Jose Miranda
- · Replies 11 ·
Finding cliff height from stone drop and sound travel time
- Ritzycat
- · Replies 5 ·
Mirror 4-Momentum: Find Frequency Change on Reflection
- SHawking01
- · Replies 4 ·
Finding electric field of spherical shell
- dumb_at_physics
- · Replies 11 ·
What Is the Lorentz Boost Speed for Time Dilation and Spatial Separation?
- leonmate
- · Replies 13 ·
An investigation on the factors affecting skiing
- maturk
- · Replies 4 ·
What is the derivation of the Doppler effect for light using Taylor expansion?
- Skeptic.
- · Replies 1 ·
Knudson Effusion between two gasses
- Robsta
- · Replies 4 ·
Stone dropped and stone thrown upward meet at same time
- heythere1010
- · Replies 5 ·
What Angle Should the Ball Strike to Initiate Pure Rolling in the Sphere?
- Satvik Pandey
- · Replies 24 ·
Projectile Motion Equation Problem
- CaptainSensible
- · Replies 10 ·
Work and Energy of wrecking ball
- kaspis245
- · Replies 4 ·
Uniformly Charge on a Wire - Electric Field
- Aristotle
- · Replies 21 ·
Sled pulled at angle: how does 62° affect kinetic energy increase?
- kaspis245
- · Replies 9 ·
Finding Acceleration and Tension
- kum203
- · Replies 8 ·
[Thermal Physics] Calculating Energy Removal
- Maxee
- · Replies 5 ·
Finding refractive index from polarized reflection intensity ratio
- Sheepwall
- · Replies 4 ·
What is the centripetal acceleration in a vertical circle with a given velocity?
- hittce
- · Replies 7 ·
Solving for height and gravity
- Calpalned
- · Replies 16 ·
Three hanging boxes connected by ropes with upward force and downward acceleration
- RJLiberator
- · Replies 4 ·
Boat Positioning: Lorraine and Jeff's Displacement in Race - Homework Question
- Rasofia
- · Replies 3 ·
How to find magnitude of two forces
- janex
- · Replies 21 ·
1D-kinematics with constant acceleration
- Elvis 123456789
- · Replies 7 ·
Fraction of heat energy used to do expansion work of a gas?
- JustinLiang
- · Replies 3 ·
Dot product in uniform circular motion question -- Finding angle?
- ColtonCM
- · Replies 4 ·
Capacitor and Switch Potential Difference Calculations
- burnst14
- · Replies 3 ·
Energy in a shrinking spherical capacitor
- throneoo
- · Replies 6 ·
Find the height of a free falling object
- KwamKwam
- · Replies 7 ·
Two skaters of equal mass grab hands and spin
- Calpalned
- · Replies 1 ·
Kinetic friction and lost mechanical energy
- hunbogi
- · Replies 12 ·
Principle of Equivalence and Acceleration in Deep Space
- Calpalned
- · Replies 6 ·
How Do a Car and Truck Meet When Starting at Different Times?
- link107
- · Replies 8 ·
Electron acceleration in its lowest orbit
- nmsurobert
- · Replies 3 ·
How Long Does a Box Slide Up a Ramp?
- Westin
- · Replies 5 ·
What is the Average Speed of an Object Traveling 12 Meters in 9 Seconds?
- erandall
- · Replies 3 ·
Calculating Net Force for Motor and Driver Acceleration
- SpiralStars
- · Replies 5 ·
Carbon-14 Half-Life: Calculating Decays After 50,000 Years
- Wing2015
- · Replies 2 ·
Electric field of line charge with non uniform charge densit
- neutrondud
- · Replies 2 ·
Inductive Circuit and Frequency
- ah4p
- · Replies 4 ·
Finding mass of a meter stick using torque
- khannon5
- · Replies 33 ·
Lightbulb brightness in a circuit
- phunphysics
- · Replies 1 ·
Methods for calculating average velocity
- henry3369
- · Replies 4 ·
Electric Potential Over Non-Uniform Rod
- Haptic9504
- · Replies 2 ·
How Do You Calculate Acceleration in a Double Atwood Machine?
- Calpalned
- · Replies 5 ·
Conservation of momentum: throwing bricks
- henry3369
- · Replies 1 ·
Current through parallel resistors in Kirchhoff's law problem
- Ortix
- · Replies 3 ·
Trajectory of hemisphere's center of mass on smooth plank with friction
- AdityaDev
- · Replies 13 ·
How Much Air Mass for a Hovering Helicopter?
- henry3369
- · Replies 6 ·
Shoe weight effect on pedaling force?
- DeeCeeMTB
- · Replies 3 ·
Magnetic field and parallel current-carrying wires
- ah4p
- · Replies 6 ·
Lost energy when capacitor discharges
- Tekk
- · Replies 3 ·
Given potential, ask plane charge distribution
- Tekk
- · Replies 3 ·
Points of destructive interference of sound waves?
- Maged Saeed
- · Replies 9 ·
Why the voltage acrossWheatstone's bridge isn't always zero?
- jack58
- · Replies 7 ·
Black Body Radiation at a Distance from Emitter
- DanD
- · Replies 6 ·
Inserting Dielectric into a capacitor in parallel
- Rabbittt
- · Replies 1 ·
Determining the oscillations of an electron within a sphere
- DaedalusRex
- · Replies 6 ·
Angular momentum of a thin spherical shell
- slr77
- · Replies 4 ·
Calculating the Electric Field inside an insulating shell
- ryankunzzz
- · Replies 3 ·
Moment of inertia of a solid sphere
- henry3369
- · Replies 4 ·
Find velocity when upward force F=bt causes acceleration g
- Poetria
- · Replies 9 ·
Diesel fuel needed for train to reach altitude with target speed
- Graeme
- · Replies 2 ·
How to Find Angular Velocity from Linear Speed?
- shania
- · Replies 3 ·
Can Symmetry Simplify a Hard Resistor Network?
- mooncrater
- · Replies 6 ·
Using Superposition and Linearity to Find Current?
- Gwozdzilla
- · Replies 6 ·