Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Inelastic collision between ball and rotating system.
- MangoMaster
- · Replies 21 ·
Energy of Conservation Lab Report Question
- jdawg
- · Replies 8 ·
Work Energy Theorem and Kinematics
- layout4it
- · Replies 4 ·
Spherical Capacitor: Calculating Capacitance in pF
- professordad
- · Replies 1 ·
Force per unit length on wire in square arrangement with four current-carrying wires
- CookieSalesman
- · Replies 6 ·
Net Electric field and electric net force
- lonlyway
- · Replies 2 ·
Constant electric field in the sphere
- Tanya Sharma
- · Replies 4 ·
Speed of a rope sliding off a peg?
- Kavorka
- · Replies 8 ·
Which Coin Flies Off First from a Speeding Turntable?
- alingy1
- · Replies 2 ·
Solve Fusion & Einstein Homework: Energy Output & Mass Conversion
- Sastronaut
- · Replies 1 ·
Elastic glancing collision problem
- kjean
- · Replies 4 ·
Finding impact speed of a high altitude free fall
- Kavorka
- · Replies 2 ·
How Do You Calculate Kinetic Energy in Relativistic Dynamics?
- Scientist94
- · Replies 8 ·
Calculating Wavelength of Longitudinal Wave in Water from Steel
- MasterPnut
- · Replies 1 ·
Problem with the weigth of the moment arm
- SwedishFred
- · Replies 2 ·
Vertical Rod with two masses attached falling over table.
- DeLaHostia
- · Replies 2 ·
What have I done wrong? (torque and angular momentum)
- PhyIsOhSoHard
- · Replies 2 ·
Electron being shot between two plates
- hvthvt
- · Replies 3 ·
How Does a Head Crash Affect Hard Drive Spin Dynamics?
- emmaden
- · Replies 1 ·
Car stopping distance at different speeds using energy
- lozah
- · Replies 4 ·
Magnetic Field and the resulting force
- adjacent
- · Replies 6 ·
Largest resistor value such that BJT remains in active mode
- theBEAST
- · Replies 2 ·
Which form of particle acceleration is safer?
- dasitmane
- · Replies 1 ·
BJT Circuit Problem Find Vc Quickly
- theBEAST
- · Replies 1 ·
Car moving up Inclined Plane question
- Ronaldo95163
- · Replies 1 ·
How to Determine Mass Flow Rate for Adiabatic Compression of Nitrogen?
- Fluidman117
- · Replies 2 ·
Direction of Compass Needle near a Solenoid
- aadarsh9
- · Replies 10 ·
Linear and circular accelerators
- dasitmane
- · Replies 1 ·
Time taken by a balloon to deflate
- Saitama
- · Replies 17 ·
Non-uniform electric field and conducting spheres
- ifailatlife
- · Replies 5 ·
What is conserved in the system?
- PhyIsOhSoHard
- · Replies 3 ·
Where does the friction come from?
- nomorenomore
- · Replies 5 ·
How to Solve a Friction Problem with Statics
- Jud
- · Replies 8 ·
What Determines the Net Force on Each Box When They Are Slowing Down?
- AZNathanielC
- · Replies 12 ·
Rock thrown up a 30° hill at 65° angle from horizon
- Bryson
- · Replies 6 ·
Why Does Enthalpy Decrease on Isothermal Compression?
- sero2000
- · Replies 1 ·
Moment of inertia and angular velocity
- nomorenomore
- · Replies 3 ·
How Do You Find the Position of Antinodes on a String with Fixed Ends?
- MasterPnut
- · Replies 5 ·
Circular motion and energy of a massless spring
- nomorenomore
- · Replies 5 ·
How Do You Calculate the Magnetic Field at a Point Along the Axis of a Solenoid?
- KracniyMyedved
- · Replies 2 ·
Frictional Forces Physics 1 Problem
- Almost935
- · Replies 3 ·
Spring constant based on change in potential energy
- sanctifyd83
- · Replies 12 ·
Spring Connected between 2 Masses
- MD_Programmer
- · Replies 8 ·
Where is the electric field zero?
- CatWhisperer
- · Replies 4 ·
Why must I use radians, not degrees, for cos(200t)?
- Coop
- · Replies 5 ·
Can velocity and acceleration point different ways than the object's motion?
- Lily Lauren
- · Replies 1 ·
Why do connected conducting spheres have equal potential, not charge density?
- tomizzo
- · Replies 6 ·
Physics 2, Three Infinite Straight Wires
- nathancurtis11
- · Replies 1 ·
Finding wire velocity in magnetic field with 425 mA current
- paytona
- · Replies 2 ·
How High Should a Street Lamp Be for Optimal Road Illumination?
- skrat
- · Replies 1 ·
Solving a Head-on Collision: Qs 1-4
- Jimmy87
- · Replies 5 ·
Thermodynamics problem - weight and piston connected by string
- Saitama
- · Replies 31 ·
How Does a Charged Bead Behave in a Capacitor?
- Peetah
- · Replies 4 ·
Finding the terminal voltage across 16V and 8V batteries?
- fishy
- · Replies 1 ·
Magnitude of acceleration given the orbit
- Shadow236
- · Replies 2 ·
Calculating Water Vapor Requirements for Temperature Change of a System
- Attis
- · Replies 12 ·
What Differentiates Simple Harmonic Motion from ψ = Amod(t) cos (wavt)?
- whitehorsey
- · Replies 3 ·
How to Calculate the Required Force to Move a Block Up an Incline
- Almost935
- · Replies 2 ·
Chain and spinning disk problem
- Rugile
- · Replies 22 ·
How many times does a bee fly between two people walking toward each other?
- nowayn
- · Replies 9 ·
Finding electrical energy used by a light
- owtu
- · Replies 8 ·
Kinetic energy of rocket explosion
- jc14
- · Replies 1 ·
Solving for radius of Milky Way dark matter halo
- QuantumX
- · Replies 13 ·
Can a 0.5 m³ cylinder fill a 5 m³ balloon using Boyle's law?
- Ronaldo95163
- · Replies 9 ·
Sliding block with motion restricted by spring
- itsalana
- · Replies 2 ·
How Do You Determine the Correct Phase Constant for a Wave?
- grassstrip1
- · Replies 3 ·
Semi-infinite string with a mass on the free end
- raving_lunatic
- · Replies 1 ·
How Long Does a Projectile Stay in Air When Launched Vertically at 10 m/s?
- GoGoGadget
- · Replies 4 ·
Temperature at junction of gold and silver bars?
- Feodalherren
- · Replies 4 ·
Capacitor and reactance question
- kkingkong
- · Replies 1 ·
Force applied to glove catching a 0.5 kg baseball at 35 m/s
- CougarPride
- · Replies 1 ·
Two methods for finding spring constant k
- Jay_
- · Replies 11 ·
Conservation of Energy: No Translational KE?
- nomorenomore
- · Replies 2 ·
Finding velocity as a function of position, constant acceleration
- crowned
- · Replies 11 ·
How to Show the E Field Outside a Long, Charged Conducting Cylinder?
- Plaetean
- · Replies 5 ·
Electrodynamics question - Induced EMF
- mrmoriarty
- · Replies 12 ·
Why is the Normal Force Neglected in Certain Scenarios?
- nomorenomore
- · Replies 1 ·
Change in temperature in the Gay-Loussac-Joule experiment
- Emspak
- · Replies 5 ·
Understanding Oscilloscopes: How Can We Use Them to Measure RC Circuits?
- tbdm
- · Replies 4 ·
Is Conservation of Energy Demonstrated in Particle Motion from A to P?
- Dumbledore211
- · Replies 4 ·
Kinematics - particle acceleration and distance travelled
- GoGoGadget
- · Replies 2 ·
Voltage of cylinder of radius R
- TwinCamGTS
- · Replies 6 ·
Ball attached to string attached to wall, find force against wall
- melizabeth
- · Replies 5 ·
Electric field of a non uniform charge of a cylinder
- TwinCamGTS
- · Replies 6 ·
Object dropped from height 2h: why is velocity 1.4v not 2v?
- GoGoGadget
- · Replies 1 ·
Why Does Helicopter Velocity Affect Package Drop Time?
- rexorsist
- · Replies 4 ·
Understanding Vector Addition and Magnitude Equality
- yoyo16
- · Replies 12 ·
Neutral conductor has a hollow cavity within it
- TwinCamGTS
- · Replies 1 ·
Deriving entropy change equation from Boltzmann's principle
- tombrown9g2
- · Replies 6 ·
Solve Falling Chain (3.11) Length & Speed
- Radarithm
- · Replies 13 ·
Centripetal Force String Tension
- scrambledeggs
- · Replies 5 ·
Find energy of a lightning strike
- sfgoat
- · Replies 2 ·
What is the force direction on a left wire in a parallel current setup?
- ivanwho49
- · Replies 4 ·
The energy of debris ejected from an asteroid impact
- QuantumX
- · Replies 9 ·
Charge Distribution on Metal Sheet
- Saitama
- · Replies 64 ·
Kinematics problems: snakes, rockets, sleds and trains
- deltangh
- · Replies 4 ·
Finding distance from velocity-time graph with piecewise linear motion
- liamporter1702
- · Replies 9 ·
10 kg block with 30 N force, static friction 0.33, kinetic 0.20
- ammcl30
- · Replies 4 ·
Thrust and acceleration of a launch vehicle
- coggo8
- · Replies 20 ·
Particle's path in magnetic field
- ivanwho49
- · Replies 8 ·