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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Carnot Heat Engine, thermodynamics
- theown1
- · Replies 3 ·
Multiple choice but no answers to them so can't study?
- rickkwa
- · Replies 3 ·
Why Is Diffraction More Evident When Slit Width Matches Wavelength?
- Dragynfyre
- · Replies 2 ·
Solved: Conical Pendulum: Calculating Tension & Period
- Gold3nlily
- · Replies 2 ·
Finding the coefficient of Friction
- Simpleshot
- · Replies 1 ·
Getting moles number of Oxygen in Balloon - 65 characters
- cathode-ray
- · Replies 6 ·
Breaking up vectors into components
- fd25t6
- · Replies 2 ·
Solving for Power Loss in a Transmission Line: (P-P')=(P^2)R/(V^2)
- Fisicks
- · Replies 4 ·
I think I am brain dead today. I can't even solve this simple problem
- flyingpig
- · Replies 10 ·
Exponential decay question. fundamental
- rjsbass
- · Replies 4 ·
Simple Circuits Homework: Max Bulbs, Legal Connections, Circuit Diagrams
- baileya
- · Replies 5 ·
How Does Stretching a Wire Affect Its Resistance?
- logearav
- · Replies 2 ·
Solving Kinematics Problem: Dropped Object Distance & Height
- mateomy
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Resistance and the flow in a circuit
- MitsuShai
- · Replies 5 ·
Using Min and Max slope method to determine uncertainties
- hibachii
- · Replies 3 ·
Why does the snapped wire create heat?
- Abhishekdas
- · Replies 11 ·
Pushing a 94kg Crate: Calculating Force, Work & Power
- chawki
- · Replies 6 ·
Calculating Work Done for a Box on Horizontal Floor
- chawki
- · Replies 3 ·
Solving Homework: Speed, Acceleration, and Distance
- songoku
- · Replies 4 ·
Tension and pulleys (not calculative questions)
- page123
- · Replies 5 ·
How much work is done by the towrope on a waterskier moving due west?
- renegade05
- · Replies 1 ·
Potential difference of 2 points across charge and conductor
- leachlife4
- · Replies 1 ·
Type 1 Projectile with an initial vertical velocity
- reganw
- · Replies 2 ·
How Quickly Can an MRI's Magnetic Field Be Safely Altered?
- kikko
- · Replies 1 ·
How Should Antennas Be Oriented Relative to the Transmission of Radio Waves?
- sona1177
- · Replies 5 ·
The Doppler Effect For EM Waves
- sona1177
- · Replies 2 ·
Simple Alpha Particle Spectroscopy Question
- ~Sam~
- · Replies 4 ·
What is the relationship between mass and acceleration based on given data?
- novawinters
- · Replies 5 ·
Number of revolutions within 4 seconds
- ch2kb0x
- · Replies 6 ·
Circular Motion Force at Point A: Stunt Car on Frictionless Track
- Help1212
- · Replies 3 ·
Why Were Some Alpha Particles Detected in Radium-226 Decay but Not Others?
- ~Sam~
- · Replies 2 ·
Kinetic Friction and skis thrust
- BlakeGriffin
- · Replies 1 ·
An adiabatic piston of mass m .
- zorro
- · Replies 7 ·
How Do You Derive the Range Maximizing Equation in Projectile Motion?
- Raywashere
- · Replies 1 ·
Acceleration in free fall w/ air drag given velocity and mass
- elsternj
- · Replies 1 ·
Inertial and non-inertial frame of reference
- shikazu
- · Replies 3 ·
Spring compression - Conservation of Energy
- jtw2e
- · Replies 8 ·
Coefficient of friction-Puck travelling up an incline
- ThomasMagnus
- · Replies 6 ·
Energy Conservation & Potential Energy Spring/Friction Problem
- Help1212
- · Replies 5 ·
Electric Potential Between Two Charges
- maw524
- · Replies 5 ·
Concepts of a Piston cylinder device
- Xyius
- · Replies 1 ·
Meter Conversion: Rs, Rm, Rt, %Ig, %Is
- Blu3eyes
- · Replies 3 ·
I hate signs, a simple problem with electric potential
- flyingpig
- · Replies 4 ·
What Forces Act on a Mass Sliding Inside a Hoop?
- Staerke
- · Replies 2 ·
How Do You Calculate Earth's Radial and Transverse Velocity Components?
- the riddick25
- · Replies 1 ·
: precalc project amplitude help
- egan94
- · Replies 1 ·
Understanding the Difference between Radiance and Irradiance
- funcosed
- · Replies 1 ·
Potential difference between 2 points
- ledwardz
- · Replies 1 ·
Derivations of the motion equations
- mateomy
- · Replies 3 ·
What are the effects of the mass of the pulley and string in Fletcher's trolley
- mballaz
- · Replies 1 ·
Vertical circular motion in uniform circular motion
- seanpk92
- · Replies 3 ·
How Much Work Can Methanol Fuel Generate in Different Energy Systems?
- megid
- · Replies 5 ·
Proving that the product rule for differentiating products applies to vectors
- a.merchant
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How Is Acceleration Calculated in Uniform Acceleration Problems?
- TCleland
- · Replies 3 ·
Calculating Buoyant Force of Balloon System
- 2much
- · Replies 1 ·
Mutual Inductance of a conducting loop and a solenoid
- kiltfish
- · Replies 5 ·
Calculating Mass from Force & Acceleration
- 2much
- · Replies 12 ·
Helicopter carrying a water balloon
- ThomasMagnus
- · Replies 4 ·
Conservation of Energy - Bungee Jumping
- jtw2e
- · Replies 3 ·
Calculating the Horizontal Force for Stationary Blocks on a Cart
- TDS1988
- · Replies 1 ·
Loop moving through a magnetic field
- sona1177
- · Replies 9 ·
Atomic Mass in a Mass Spectrometer
- futurepocket
- · Replies 8 ·
Do different liquids increase in density at different rates when heated?
- Opehelia
- · Replies 1 ·
Field Transformations: loop moving along wire
- Rose Garden
- · Replies 1 ·
How Do You Calculate Electric Field and Potential in a Parallel Plate Capacitor?
- ledwardz
- · Replies 3 ·
What is the tension on a string wrapped around a pulley?
- uncletammy
- · Replies 1 ·
Statistics of Radioactive Decay
- theuniverse
- · Replies 2 ·
Solve the Spring-Block System: Find x1 & x2
- emmy
- · Replies 9 ·
Resultant electric field magnitude and direction
- ledwardz
- · Replies 4 ·
How Does Charge Affect Electric Field in Spherical Shells?
- Hooke's Law
- · Replies 1 ·
How Long Will It Take to Heat Water in an Electric Kettle?
- chawki
- · Replies 8 ·
Equation of Motion of sky-diver
- Samantha24
- · Replies 2 ·
Simple fluids but is the application correct
- phyeinstein_c
- · Replies 15 ·
Can a Ball Roll in a Horizontal Circle Inside a Bowl?
- Nick886
- · Replies 3 ·
Conservation of energy - spring
- dba
- · Replies 5 ·
How Does Charge Redistribution Work in a Conductor with a Cavity?
- JimiJams
- · Replies 2 ·
Why Is Calculating Golf Ball Velocity More Challenging on a Downhill Lie?
- jburrus
- · Replies 1 ·
PLEASE HELP in Deriving Terminal Velocity Equation
- hibachii
- · Replies 5 ·
I am about to toss this book off the window
- flyingpig
- · Replies 2 ·
Calculating Force P Needed to Lift 150kg Cylinder
- Lancelot59
- · Replies 2 ·
What is the driving force to increasing the internal resistance of a battery
- flyingpig
- · Replies 3 ·
Angle for a projectile that must clear 2 walls
- ThomasMagnus
- · Replies 6 ·
What is the Speed of a Proton Released Midway Between Charged Sheets?
- seamstander
- · Replies 7 ·
What Is the Correct Unit for a in the Equation P + av^2 = b?
- Michael_Light
- · Replies 3 ·
Why Choose Both Electron and Hydrogen Atom as a System in Collision Studies?
- Loppyfoot
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Find Weight of Object Pulled by Rope w/ FT=30N & Acceleration=1.4m/s2
- ThomasMagnus
- · Replies 3 ·
Force between a unform sphere and a particle* outside of the sphere
- obing007
- · Replies 1 ·
Constructive inteference question
- freetofu
- · Replies 2 ·
How Does Friction Affect Mechanical Energy in a Bead Slide?
- notsam
- · Replies 1 ·
How do Lenz's Law and the right hand rule work together in electromagnetism?
- brianll
- · Replies 3 ·
How to improve a summary of superposition/Schrodinger's cat
- whatisreality
- · Replies 3 ·
Motional Emf: Solving for Speed with E=vBL
- kiltfish
- · Replies 1 ·
Calculating Linear Speed of Test Tube in Centrifuge
- mwegimont
- · Replies 1 ·
Virial theorem for an inverse-square law force
- 158939444
- · Replies 1 ·
Deriving RPM for Object Slipping from Rotating Surface
- icanletyougo
- · Replies 1 ·
A mass attached to 2 identical springs (please HELP)
- crosbykins
- · Replies 1 ·
Fabricating a Uniform Wire: Length & Diameter Calculation
- pkujulo2
- · Replies 3 ·
What Is the Magnetic Field at the Center of a Solenoid?
- kiltfish
- · Replies 3 ·
Calculate Electrical Energy Stored in 9V Battery (120 mAh)
- Mangastream
- · Replies 6 ·