Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Does weight affect braking distance for transport trucks?
- phil4321
- · Replies 27 ·
Finding the time for an object to start rolling without slipping
- member 731016
- · Replies 4 ·
Spring momentum conservation problem
- member 731016
- · Replies 4 ·
Rearrange formula to show a linear relationship between Frequency and Volume
- qq194
- · Replies 37 ·
Solving the motion integral near a turning point with Taylor expansion
- gionole
- · Replies 19 ·
Calculating voltage between two points using line integrals
- lys04
- · Replies 8 ·
Running princess and spider - time problem
- Lotto
- · Replies 13 ·
Why Is Work Positive When Done Against the Electric Field?
- lys04
- · Replies 22 ·
Power output and sound intensity
- dylanwalt
- · Replies 9 ·
Why Isn't Momentum Conserved with Varying Disk Radii?
- simphys
- · Replies 29 ·
Moment of inertia of a thin, square plate
- simphys
- · Replies 8 ·
8.01 MIT OCW PS1.4: Throw and Catch (Kinematics)
- giodude
- · Replies 4 ·
Correct Use of the Parallel Axis Theorem for Moment of Inertia
- simphys
- · Replies 2 ·
Velocity divided by Acceleration gives distance?
- Mongster
- · Replies 5 ·
Does a linearly time varying B create changing E?
- Shreya
- · Replies 4 ·
Oscillations of load with spring after rod is suddenly stopped
- alalalash_kachok
- · Replies 5 ·
Part of bike wheel is cut out, find period of oscillations
- alalalash_kachok
- · Replies 1 ·
Maximum power transfer theorem: is my solution for R correct?
- PhysicsTest
- · Replies 6 ·
Conservation of Momentum Calculation Woes!
- bruceleereview
- · Replies 12 ·
Calculating the Energy Absorbed by a Spring in a Car Suspension System
- Ebby
- · Replies 5 ·
Why is the entropy value of this steady flow open system not equal to zero?
- tracker890 Source h
- · Replies 11 ·
Question in Thermal Physics (Van der Waals' Equation)
- warhammer
- · Replies 6 ·
Where Does a Bar on a Fulcrum First Tip When a Person Walks Across It?
- JohnnyLaws
- · Replies 2 ·
How Does the Positive Spring Constant k = F/x Apply in Bow Mechanics?
- Ebby
- · Replies 4 ·
Block sliding down a wedge, all resting on a balance
- dorothy
- · Replies 1 ·
How Does a Frictionless Piston Affect Mercury Levels in a Manometer?
- Tomy World
- · Replies 6 ·
Pendulum SHO but with extra downward acceleration of the pivot
- simphys
- · Replies 2 ·
Free vibration in 2DOF spring mass systems
- M2H37
- · Replies 2 ·
Potential Energy - 2D inelastic collision - ballistic pendulum
- potatogirl
- · Replies 10 ·
Ohm's Law - Finding Source Voltage
- Brian82784
- · Replies 3 ·
Converting gravity into pressure inside the very center of a planet
- lexdean
- · Replies 4 ·
What is the Average Power of an Elevator in Physics?
- MatinSAR
- · Replies 17 ·
Electric field near conducting shell
- lys04
- · Replies 9 ·
Position vector for anti-clockwise circular motion derivation
- member 731016
- · Replies 5 ·
Calculation of the orbital period for a binary star system
- simphys
- · Replies 19 ·
Work done by non-conservative force while particle moves in circle
- Ebby
- · Replies 25 ·
Physics presentation topic combining mechanics or wave interference with everyday life
- joshwarner
- · Replies 6 ·
Oblique soccer shot calculation task
- johanMT
- · Replies 38 ·
Which Regions Can This Cannon Reach with Its Projectile?
- roborangers
- · Replies 4 ·
Relating acceleration to distance and time
- golya
- · Replies 5 ·
Loop current method sign error in bridge circuit loop B
- guyvsdcsniper
- · Replies 6 ·
Finding the angle that a string makes with a wall and its tension
- JohnnyLaws
- · Replies 4 ·
Basics of forces/torques and fulcrum
- JohnnyLaws
- · Replies 6 ·
Can energy truly be converted into matter in our world?
- Any name will do
- · Replies 5 ·
Adiabatic Expansion of Pressurized Air in a Piston-Cylinder Setup
- Peter_parker
- · Replies 8 ·
How to fit the Fourier optical formula using matlab
- xiaoxin8949
- · Replies 1 ·
Determining Maximum Torque in a Truck and Forklift System
- scatterbrainz
- · Replies 11 ·
Calculating Moment of Inertia for Hollow Cylinder w/ Water
- mostafaelsan2005
- · Replies 40 ·
Work done for round trip when force is function of velocity
- Ebby
- · Replies 17 ·
Calculations for Hydraulic Jacks lifting a load
- doconnor17dan
- · Replies 2 ·
Wetting on the outside of a glass cylinder
- guv
- · Replies 12 ·
Calculating ΔE from energy-time uncertainty principle with Δt = 4.41e17 s
- tanaygupta2000
- · Replies 7 ·
Getting the truck over the crossing
- pope
- · Replies 6 ·
Capacitance of three concentric shells
- Kashmir
- · Replies 3 ·
Rotational problem of arm - wrestling
- songoku
- · Replies 7 ·
Why does E=mc² give the same mass for a photon and electron?
- a71cj34
- · Replies 28 ·
Cart launched by spring sliding up a ramp
- zan123_
- · Replies 9 ·
Calculate the bouyancy of two spheres joined by a rope submerged in seawater
- jnuz73hbn
- · Replies 6 ·
SHM - Pendulum and Mass on a spring
- Shaye
- · Replies 1 ·
Find the amplitude of a sinusoid given frequency and time after zero-crossing
- jnuz73hbn
- · Replies 2 ·
Coefficient of Friction question for a cart going down a wooden ramp
- cutielollipop
- · Replies 18 ·
Relativistic velocity addition for a message between spaceship and station
- Saibot
- · Replies 7 ·
Electromagnetism question -- Forces between two current carrying wires
- cutielollipop
- · Replies 7 ·
When is the acceleration due to gravity negative and when is it positive?
- potatogirl
- · Replies 13 ·
Converting potential energy to potential at the origin
- ab200
- · Replies 10 ·
Aberration and Doppler shift in Special Relativity
- RafaPhysics
- · Replies 7 ·
Why is the thrust equation same under gravitational force?
- f3sicA_A
- · Replies 10 ·
Finding beam weight with suspended masses and torque equilibrium
- chmergatroyd
- · Replies 7 ·
Why is product of inertia zero for a rolling disk?
- Anubhav singh
- · Replies 24 ·
Physics Practical Investigation using a mass, a fulcrum and a plank
- Jeff97
- · Replies 16 ·
How to Derive Resonant Frequencies for Planar Mirror Resonators?
- Marco Oliveira
- · Replies 1 ·
Solving simultaneous equations from Kirchhoff's loop and junction laws
- viv12345
- · Replies 7 ·
Finding average angular velocity of a grinding wheel with three phases
- mysteryowl
- · Replies 6 ·
Double Slit Diffraction with Angled Light
- ab200
- · Replies 4 ·
Calculating Chromatic Aberration
- ab200
- · Replies 2 ·
Electric field from two point charges
- deGallo
- · Replies 2 ·
Why is 2.4-L Max Vol V1 in Diesel Engine Cylinder Example 9-60?
- tracker890 Source h
- · Replies 3 ·
Calculating Charge of an Electron w/ the Millikan Oil Drop Experiment
- guyvsdcsniper
- · Replies 12 ·
A cylinder of snow rolls down a hill gathering more snow -- calculate its speed
- guv
- · Replies 39 ·
Speed of cylinder rolling along a horizontal surface gathering snow (Solved)
- kuruman
- · Replies 13 ·
Gravitational Forces on three masses at the corners of an equilateral triangle
- hasibx
- · Replies 4 ·
Derivation of uncertainty formula
- songoku
- · Replies 7 ·
Correct approach in resolving a force into its different components
- Nova_Chr0n0
- · Replies 4 ·
Energy transfer/loss in catapult
- Twellmann
- · Replies 4 ·
How did Rutherford prepare the gold leaf for the gold leaf test?
- Hasal
- · Replies 6 ·
Statics problem -- Hinged members and anchor points supporting a mass
- David Donald
- · Replies 6 ·
Confusion on mechanics problem involving cart, blocks, and pulley
- niko_niko
- · Replies 37 ·
Revisiting the Feynman Ball on an Inclined Plane Problem
- John Helly
- · Replies 30 ·
Finding displacement from an acceleration vs. time graph
- someonehere
- · Replies 5 ·
Oblique slab of conducting material placed in a capacitor
- stefano77
- · Replies 10 ·
2D Fraunhofer-diffraction with infinitely long slits
- PhysicsRock
- · Replies 9 ·
Confusion on relative velocity sign
- niko_niko
- · Replies 3 ·
Computing entropy change of ideal gas during heating
- jasonRF
- · Replies 8 ·
Minimum resistance to prevent overheating in AC circuit
- songoku
- · Replies 3 ·
Calculating Net Torque in a Rotating System
- checkmatescott
- · Replies 22 ·
Constructive Interference from Speakers on an x-axis
- ab200
- · Replies 2 ·
Finding electric field between two conducting plates using Gauss' law
- MatinSAR
- · Replies 4 ·
Understanding example in Wikipedia entry for open circuit voltage
- zenterix
- · Replies 3 ·
Voltage in a simple circuit (MITx 6.002, Circuits and Electronics)
- zenterix
- · Replies 10 ·
Converting Voltage into Pressure
- guyvsdcsniper
- · Replies 24 ·