Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Helicopter accelerates up, flare fired horizontally at 30s
- ado21
- · Replies 2 ·
Why different equations for energy in battery vs wire
- spottedcow913
- · Replies 1 ·
How Do You Calculate the Mass of Each Tanker Using the Universal Law of Gravity?
- Rgonzales
- · Replies 4 ·
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 ·
Coefficient of friction for a 400 g book pushed with 5 N
- 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 ·
Max bulbs in parallel vs series, circuit breaker placement, and multi-bulb circuits
- baileya
- · Replies 5 ·
Resistance when a wire is stretched from 10 cm to 50 cm
- logearav
- · Replies 2 ·
How does one-fourth distance in last second give (t-1s)=±√(3/4)?
- mateomy
- · Replies 2 ·
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 ·
Force, work and power for a 94 kg crate pushed at constant velocity
- chawki
- · Replies 6 ·
Calculating Work Done for a Box on Horizontal Floor
- chawki
- · Replies 3 ·
Car with constant acceleration and speed segments
- 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 ·
Deriving the angle that maximizes range from a projectile motion equation
- 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 ·
Block released from spring descending ramp with friction
- 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 ·
Finding amplitude of bat and dolphin echolocation sine waves
- egan94
- · Replies 1 ·
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
- · Replies 1 ·
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 ·
Finding mass of a fork from force and acceleration
- 2much
- · Replies 12 ·
Helicopter carrying a water balloon
- ThomasMagnus
- · Replies 4 ·
Conservation of Energy - Bungee Jumping
- jtw2e
- · Replies 3 ·
Sum of forces on an incline plane
- zyzz
- · Replies 2 ·
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 ·
Best fit curve for Geiger-Muller counter data
- theuniverse
- · Replies 2 ·
Spring-block system: find final positions after 8.0 J of work
- 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 ·
Spring on a frictionless slope, finding distance traveled
- 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 ·
Deriving terminal velocity equation and estimating for a coin
- 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
- · Replies 1 ·
Object pulled up by rope in accelerating elevator: tension 30N, acceleration 1.4 m/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 ·
Cart held between two identical springs: find spring constant, frequency, and energy
- crosbykins
- · Replies 1 ·