Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
What is the Force of Tension and Acceleration in a Hanging Mass System?
- wizzpowa
- · Replies 4 ·
Mini-Golf Windmill: Find Minimum Linear Speed
- pmd28
- · Replies 5 ·
Finding 2D coordinates in different frames
- futurphy
- · Replies 5 ·
How Does Doubling Initial Height Affect Projectile Range?
- pxp004
- · Replies 1 ·
Acceleration Practice Problems: Solving for Distance and Magnitude
- member 446420
- · Replies 4 ·
Under what conditions does quantum mechanics reduce to classical mechanics?
- amberbarton
- · Replies 1 ·
Estimate the Hydrogren Burning Lifetimes of Stars
- SHISHKABOB
- · Replies 1 ·
Calculating Work Done by Friction
- DLH112
- · Replies 4 ·
What is the direction of propagation for a wave
- aaaa202
- · Replies 3 ·
What Is the Correct Derivative of the Function y(r) = (r^2 - 5.50r)exp(-r)?
- justin335
- · Replies 4 ·
Very basic, short impulse problem. Just need some explanation.
- AATroop
- · Replies 2 ·
Static and Kinetic Friction problem
- jff0404
- · Replies 9 ·
Calculating the Angle of Static Friction for a Crane Lifting a Box
- Nicolaus
- · Replies 8 ·
Change in speed needed for a satellite to graze the surface
- Flipmeister
- · Replies 2 ·
Millikan Oil Drop Experiment - A few questions
- ItzPootz
- · Replies 1 ·
Calculating the Rotational Kinetic Energy of Walking
- flip290
- · Replies 1 ·
Understanding mA/mV and A/V Units in Transconductance Parameters
- NewtonianAlch
- · Replies 1 ·
Angular acceleration of a bucket attatched to a solid cylinder
- anomalocaris
- · Replies 2 ·
Wave Nature of Light - Calculating Wavelength (Double Slit Exp)
- PeachBanana
- · Replies 4 ·
What Is the Resultant Velocity of an Airplane in Wind?
- v3ra
- · Replies 5 ·
Propagation of Uncertainty with Angles
- TheJuke
- · Replies 5 ·
What Forces Act on a Chain Hanging from a Table?
- Vroc
- · Replies 16 ·
Internal resistance of multimeter
- bigplanet401
- · Replies 2 ·
Calculate the average amount of power that the heart delivers
- Hangst
- · Replies 4 ·
Errors in this experimental physics lab
- Lolagoeslala
- · Replies 2 ·
Adding parallel current sources?
- theBEAST
- · Replies 3 ·
Solving Missed Arrow Shot: Initial Velocity at Bird 75m Away
- viking509
- · Replies 11 ·
Power dissipated from resistance
- baldwindc
- · Replies 4 ·
Electric Potential of a Spherical Charge Distribution
- p6.626x1034js
- · Replies 7 ·
Work done by gravity by Wonder Woman
- venceslau
- · Replies 4 ·
Inelastic Collision and Angular Momentum.
- pwkr
- · Replies 3 ·
Spring Compression problem- PLEASE SOMEONE HELP PLEASE DX<?
- Lo.Lee.Ta.
- · Replies 3 ·
Equation for momentum with headwind
- susiehk
- · Replies 6 ·
Kinetic Energy,Work Energy therom, Maximum Height
- Dejahboi
- · Replies 7 ·
Angular Velocity and Angular Acceleration help
- layla2525
- · Replies 3 ·
Rotational motion pendulum problem
- joe426
- · Replies 5 ·
[Astro] Proton-Proton Chain Energy
- tylerc1991
- · Replies 5 ·
Question about conversion to Newtons
- tratata
- · Replies 9 ·
How Long Before the Apple Core Hits the Ground?
- Nicolaus
- · Replies 4 ·
The Equations of Rotational Kinematics help
- layla2525
- · Replies 4 ·
How Do You Find Velocity in a Rotating Amusement Park Ride?
- user2867
- · Replies 1 ·
Conservation of energy problem child slides down at angle? check my asnwers?
- nchin
- · Replies 3 ·
Rotational motion roller coaster problem
- joe426
- · Replies 6 ·
Solving Siphoning Problem: Pressure, Diameter & Height
- mantaslawl
- · Replies 1 ·
What is the wire's linear charge density from a proton?
- Bigworldjust
- · Replies 15 ·
Calculating Work and Energy for Moving Charges: A Case Study
- Fabio010
- · Replies 6 ·
Balancing Gravity and Charge (Sears and Zemansky 4th Edition)
- equant
- · Replies 1 ·
Compare Mass-Pulley Frictionless Slope
- warnexus
- · Replies 5 ·
Pulley, Motor and Weight Torque Problem
- major.triad
- · Replies 1 ·
Capacitance and electric field homework
- Eastmann
- · Replies 1 ·
Help With Understanding why weight in the x direction is MG*SIN*Theta
- Rabscuttle
- · Replies 7 ·
Find height of ball under water beam
- Huumah
- · Replies 1 ·
Atwood Machine: Energy & Work Homework Soln
- kchurchi
- · Replies 2 ·
Estimating the lorentz factor of a spaceship
- EmmaLemming1
- · Replies 8 ·
Plane's new velocity after wind from west
- jff0404
- · Replies 2 ·
Linear motion converted into rotatory motion problem
- rabiakhan.91
- · Replies 17 ·
How Much Heat Is Needed for Each Process in a PV Diagram?
- Nellen2222
- · Replies 7 ·
Finding velocity from force and distance
- JKGlover
- · Replies 10 ·
Understanding Velocity and Acceleration: Scalar vs Vector Quantities
- venture
- · Replies 3 ·
How to Find the Y-Component of a Plane's Velocity with Respect to the Ground
- scorks
- · Replies 1 ·
Find the acceleration : block slides on a wedge
- pcpssam
- · Replies 3 ·
Question about Gravity and ratio of attraction
- Freemark
- · Replies 14 ·
Orbital Period of satellite in terms of v and r
- Cloud 9
- · Replies 4 ·
Difference between kinetic and static friction.
- AMG96
- · Replies 6 ·
Tension in the hawsers holding a beam
- lendav_rott
- · Replies 8 ·
Problem with calculating final temperature of water
- v3ra
- · Replies 7 ·
Going from cylindrical to cartesian coordinates
- Niles
- · Replies 13 ·
Derivative Questions and Solutions for y(r) = (r^2-8r)exp(-r) at r=8.00
- Kolby
- · Replies 7 ·
Calculating Impulse Based off a graph
- doctorjuice
- · Replies 2 ·
Cycler on a winding and velocity
- Glyper
- · Replies 1 ·
Mutually Perpendicular Magnetic Fields
- achintya.s
- · Replies 1 ·
Moments & equilibrium of rigid bodies
- phospho
- · Replies 1 ·
Elementary - braking force of a trolley
- Glyper
- · Replies 8 ·
What is the electric force of the molecule on the proton?
- Bigworldjust
- · Replies 2 ·
How Do You Calculate the Final Velocity of Two Colliding Cars?
- rabiakhan.91
- · Replies 3 ·
How Do You Calculate Forces and Acceleration in a Two-Block Pulley System?
- 33639
- · Replies 3 ·
Muon decay and Special Relativity
- JackFlash
- · Replies 1 ·
How long would an electron-positron pair exist for?
- ZedCar
- · Replies 7 ·
Stimulated emission/Ne-He-laser
- lep11
- · Replies 1 ·
Question about maximum Kinetic Energy? KE & Work problem?
- nchin
- · Replies 1 ·
Hoop rolling down incline
- Zach981
- · Replies 1 ·
Minimum Kinetic Energy in a Deuteron: Which Formula Is Correct?
- ZedCar
- · Replies 4 ·
What Is the Plane's Constant Acceleration During Takeoff?
- asheik234
- · Replies 5 ·
What Is the Plane's Constant Acceleration During Takeoff?
- asheik234
- · Replies 11 ·
Golfer's Putt Challenge: Angle & Displacement
- p5oct
- · Replies 2 ·
How Does a Moving Speaker Affect Sound Frequency Perception?
- songoku
- · Replies 7 ·
Ricochet of moving / rotating block off a wall
- DigitalPenman
- · Replies 7 ·
Calculating Force with Mass and Velocity: A Quick Guide
- Dejahboi
- · Replies 44 ·
Using Energy to Solve Work Problem
- murrskeez
- · Replies 7 ·
How Do You Calculate the Average Velocity of a Thunderstorm?
- p5oct
- · Replies 2 ·
Newton's second law 3 pulley problem.
- travisdass123
- · Replies 2 ·
Why would density increase when Poisson's ratio > 0.5?
- theBEAST
- · Replies 3 ·
Multiple choice, magnetic force on the particle
- Mdhiggenz
- · Replies 1 ·
Gravitational Potential Energy - Orbits
- Nicolaus
- · Replies 5 ·
How Do You Calculate Initial Speed and Maximum Height in Parabolic Motion?
- RobSchneider
- · Replies 3 ·
Finding velocity in an elastic problem
- omc1
- · Replies 5 ·
How to explain alternating emf?
- sgstudent
- · Replies 7 ·
A pelican flying along a horizontal path
- ArcherofScience
- · Replies 3 ·
Formula relating to Uncertainty Principle
- ZedCar
- · Replies 2 ·