Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
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 ·
Electromagnetism: Magnetic Fields
- SummerDawns
- · Replies 2 ·
Whether impulses passing to brain have any relation with current in physics?
- ajaykrishna90
- · Replies 5 ·
Solving for Initial Velocity of a Ball on a String | Physics
- Mewniew
- · Replies 29 ·