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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How Long to Increase Spool's Angular Velocity from 11.0 to 35.0 rad/s?
- dana711
- · Replies 1 ·
How Much Energy Is Lost to Friction in a Spool of Wire System?
- dana711
- · Replies 1 ·
How Does Pendulum Speed Change with Angle and Initial Velocity?
- Shackleford
- · Replies 5 ·
Force and Potential energy funtion
- Sabreen Khan
- · Replies 2 ·
Moment of Inertia of Plate Problem
- seichan
- · Replies 3 ·
The ever present problem of the egg-drop
- photojenny14
- · Replies 1 ·
Multiple forces acting on a rigid body
- Eeduh
- · Replies 13 ·
Angular acceleration, and revolution
- keylostman
- · Replies 1 ·
How Is Engine Power Related to Velocity and Resistive Force in Automobiles?
- mjdiaz89
- · Replies 1 ·
A 747 nose dives into the atlantic ocean and hits the water at 900 km/h
- Count Iblis
- · Replies 9 ·
Calculate Change in Kinetic Energy for Masses on Pulley
- asianguy361
- · Replies 1 ·
Solving Projectile Motion of an Object
- Paulo2014
- · Replies 3 ·
Finding Kinetic Friction on a Ramp: A Box Sliding Down at 1.20 m/s^2
- princesspriya
- · Replies 23 ·
Finding voltage between capacitor plates with electron deflection
- anyone1979
- · Replies 8 ·
Wheel rolling without slipping: finding axle speed and angular velocity
- keylostman
- · Replies 3 ·
Hard Triple Beam Balance QUestion
- slydg895
- · Replies 1 ·
Finding di/dt in an RL circuit with flux vs. current graph
- SWFanatic
- · Replies 1 ·
Finding equivalent resistance in an ideal op amp circuit
- Innuendo
- · Replies 3 ·
How Do You Calculate Different Parameters in an RL Circuit?
- GreenLantern674
- · Replies 3 ·
Finding brake force on flywheel without moment of inertia or radius
- broouk
- · Replies 1 ·
Moment of intertia and net work problem
- keylostman
- · Replies 8 ·
What is the relationship between current and resistance?
- Gear300
- · Replies 4 ·
Forming Images with a Plane Mirror
- asianface.
- · Replies 10 ·
Why is the Electric Field Zero at the Center of a Charged Ring?
- mike115
- · Replies 2 ·
Angular Velocity and Kinetic Energy Problem?
- keylostman
- · Replies 12 ·
Sound Intensity and Power Calculations in a Conversation
- ~christina~
- · Replies 20 ·
The radius of an ellipse from the origin.
- Erez
- · Replies 5 ·
How do I calculate the work done by melting ice?
- cashmerelc
- · Replies 2 ·
Net Work Problem, Rotational Motion,
- th3plan
- · Replies 5 ·
Very basic Inverse square law problem
- Learnphysics
- · Replies 6 ·
Rotation of a disk - find angular acceleration
- blue5t1053
- · Replies 1 ·
How Many Revolutions Does the Wheel Make in 2.33 Seconds?
- jj8890
- · Replies 1 ·
Question On Displacement - Velocity-Time Graph
- Linday12
- · Replies 2 ·
Projectile Motion Question: Solving for Height of Pier Above Water
- JonathanSnow
- · Replies 2 ·
Conservation of momentum problems
- DBXO
- · Replies 3 ·
How Is Energy Lost to Friction Calculated in a Pivoting Spool System?
- sullyjared
- · Replies 1 ·
What is the work done during an adiabatic process?
- TheBeesKnees
- · Replies 8 ·
Gravitational Potential Energy of a tower
- paaraskohli
- · Replies 6 ·
Pre-lab torque and equilibrium problems with meter stick
- slydg895
- · Replies 4 ·
How Much Energy Does Leaving Car Headlights On Drain from a 12V Battery?
- Seda
- · Replies 1 ·
How many lines per centimeter does the grating have?
- George_H
- · Replies 1 ·
Construct a Balsa Wood Device to Protect an Egg from Drops
- BrianTW
- · Replies 1 ·
How Does Mass and Pivot Position Affect a Compound Pendulum's Period?
- chriswalker
- · Replies 1 ·
What must be true to prevent a ladder from slipping against a wall?
- javamanjohn
- · Replies 4 ·
Solve Rotational Questions for Translational Speeds & Angular Speed
- clphipps
- · Replies 1 ·
Bobsled Friction Problem: Finding Velocity with Coefficient of Kinetic Friction
- RaiderXero
- · Replies 1 ·
Is the Kinetic Friction Coefficient Consistent Across Different Modes of Motion?
- badsis
- · Replies 1 ·
Crash test dummies don't always wear seat belts.
- jillz
- · Replies 4 ·
Angle and tension in string hanging from accelerating car ceiling
- chocolatelover
- · Replies 5 ·
How Do Charges on Beads Affect Spring Stretching?
- nothing123
- · Replies 4 ·
How Does a Spring Affect Cart Velocity After Collision?
- louise82
- · Replies 4 ·
Potential and Kinetic energy problem
- missphysics12
- · Replies 1 ·
Find the effective area required to build such a capacitor
- euphrates
- · Replies 3 ·
How Does Frictional Torque Affect Disk Rotation in Physics Experiments?
- klopez
- · Replies 1 ·
Solving Electric Current: Find Total Resistance (Rt)
- mittpuff31
- · Replies 2 ·
Solving the Velocity of a Mass Moving Through a Loop With Friction
- gniniart
- · Replies 2 ·
What is the impulse on the ball from the wall?
- A_lilah
- · Replies 1 ·
Light and Absorptive polarizers
- PenKnight
- · Replies 1 ·
Three masses on a disk with falling block acceleration
- turbodan1
- · Replies 1 ·
How do you calculate inductance in an RL circuit?
- GreenLantern674
- · Replies 3 ·
Finding circuit current when the tank is empty
- physicsbhelp
- · Replies 2 ·
Angular acceleration of the disk as a function of time
- iamwilson
- · Replies 1 ·
Ball rolls of an edge and lands on and inclined plane
- sinisterguy
- · Replies 3 ·
Fly hitting a train physics problem
- girojim
- · Replies 2 ·
Electrostatic energy with gauss' law
- bishy
- · Replies 5 ·
Power Required to Climb 10% Grade at 35 m/s with 600N Force
- spj1
- · Replies 1 ·
Modern topics in physics curriculum
- Phan7omas
- · Replies 1 ·
Circular Motion and Newton's Laws
- rmarkatos
- · Replies 3 ·
Circular Motion with Newton's Laws
- rmarkatos
- · Replies 1 ·
Can a capacitor discharge itself through an ideal inductor?
- mkbh_10
- · Replies 2 ·
Conservation of energy of a car problem
- myoplex11
- · Replies 3 ·
Some Kinematics questions with cars and satallites
- neonjr
- · Replies 1 ·
How Do You Calculate Tension and Acceleration in a Pulley System?
- myoplex11
- · Replies 1 ·
How Much Power is Dissipated by a Lightbulb with Corroded Socket Contacts?
- Snazzy
- · Replies 1 ·
Magnetic Fields Shrinking Radius
- SWFanatic
- · Replies 1 ·
How Does Special Relativity Affect Space Travel and Communication?
- EngageEngage
- · Replies 1 ·
Sinusoidal wave (not sure what to do for the last part)and have test tommoro
- ~christina~
- · Replies 8 ·
Typical Forces and friction question
- notwhatthe
- · Replies 1 ·
Heat Engines and the Carnot Cycle
- HELLO11
- · Replies 6 ·
Finding capacitor values for 33 µF elevator door timer circuit
- complexc25
- · Replies 4 ·
I can't figure out what I am doing wrong Getting Frustrated
- BuBbLeS01
- · Replies 2 ·
Driving force- could someone tell me if I'm using the right method for probl
- ~christina~
- · Replies 4 ·
Isobaric expansion of 42 mol monatomic ideal gas
- HELLO11
- · Replies 9 ·
Why does Kirchhoff's loop rule include the 9.0 ohm resistor here?
- Roze
- · Replies 2 ·
What equations are needed to solve a block in oil puzzle?
- ~christina~
- · Replies 7 ·
Which Nova Happened First in Relation to an Aircraft's Speed?
- EngageEngage
- · Replies 2 ·
Rocket ejecting gas for 25 m/s² acceleration
- iamwilson
- · Replies 4 ·
Kinematics of Rigid Bodies:Calculating Angular Velocity
- pronep
- · Replies 1 ·
Acceleration of points on a wheel
- cauchyok
- · Replies 1 ·
How does the intensity of bat echolocation change over distance and temperature?
- ~christina~
- · Replies 8 ·
Concave Mirror and objects distance
- sheri1987
- · Replies 1 ·
How much gas must a 6000kg rocket eject in 1s to reach 25m/s²?
- iamwilson
- · Replies 1 ·
How Do Heating Costs and Battery Drain Calculations Work in Electrical Systems?
- Shadowsol
- · Replies 1 ·
Calculating Total Energy Loss of a Newton's Cradle
- faunmia
- · Replies 2 ·
A rather tricky magnetic field problem.
- orionj
- · Replies 9 ·
Calculating Light Travel Time Through Different Materials
- BuBbLeS01
- · Replies 1 ·
Webassign due in like half hour i have the problem down but its not working
- lettertwelve
- · Replies 1 ·
Why are N and mg equal in magnitude?
- sanado
- · Replies 9 ·
What is the general antiderivative of this complicated function?
- frumdogg
- · Replies 11 ·
How Is Current Density Calculated for Protons in the Solar Wind?
- Sanjay101
- · Replies 3 ·