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 Do You Calculate the Moment of Inertia for Combined Square Laminas?
- hms.tech
- · Replies 3 ·
Designing/Finding Something that Sinks Slowly
- DivineProdigy
- · Replies 4 ·
Energy considerations in solving a bungee jumper question
- Toranc3
- · Replies 3 ·
Testing for Charges in X-Y Plane Given Field Lines
- trevor51590
- · Replies 1 ·
Propagation of uncertainty in an experiment
- MeissnerEffect
- · Replies 1 ·
Locomotive question with three trains involving force and acceleration
- needingtoknow
- · Replies 6 ·
What is the excitation energy of an atom after a photon collision?
- Unicorn.
- · Replies 5 ·
Ranking Brightness of Lightbulbs in a Circuit
- leonardthecow
- · Replies 1 ·
Why is the following situation impossible?
- physics=world
- · Replies 3 ·
Using ratios to obtain the weight of a person at a specific distance
- needingtoknow
- · Replies 2 ·
How far will a pullback car go? Spring and friction coefficients.
- Totally
- · Replies 3 ·
The lifeguard problem: find the direction of sprint.
- tsuwal
- · Replies 2 ·
How Do Birds Generate Lift and Drag While Gliding?
- 7Suarez
- · Replies 7 ·
Electric field at the center of a semicircle
- rocapp
- · Replies 2 ·
Circular Motion Question: Bird's Net Vertical Force and Upward Lift Calculation
- FollowTheFez
- · Replies 2 ·
Calculating Space Probe Speed for Escape Velocity
- kopinator
- · Replies 2 ·
Calculating Density of a Planet Based on Close Orbit Satellite Period
- kopinator
- · Replies 1 ·
Calculating motor efficiency from experimental data
- mlle-castita
- · Replies 4 ·
Solve Spring Homework: Modeling Displacement | 19.6N/cm
- cowmoo32
- · Replies 8 ·
Calculate the time to travel a distance with acceleration
- Nigel1500
- · Replies 1 ·
Find the Y component of the electric field
- MacLaddy
- · Replies 6 ·
Elastic collision between a photon and an electron
- Unicorn.
- · Replies 14 ·
Electric force between charged spheres independent of radius
- tsuwal
- · Replies 6 ·
Potential difference in parallel circuit
- Johnahh
- · Replies 3 ·
Deriving the sign in Maxwell's equation for B and E
- Von Neumann
- · Replies 1 ·
How does the material of an obstacle affect a plane's ability to overcome it?
- Numeriprimi
- · Replies 1 ·
Equilibrium - A rod influenced by multiple rope tensions
- kastamonu
- · Replies 2 ·
R-L Circuit, Finding the current through a circuit element.
- hyddro
- · Replies 5 ·
Momentum before and after the collision and relative velocities.
- Jfex
- · Replies 3 ·
Determine the angular velocity of the Wheel
- Northbysouth
- · Replies 1 ·
Maximum distance an object travels when released by a spring force.
- Yankeedogg
- · Replies 10 ·
Thermal expansion with set of 3 wires
- awerter
- · Replies 3 ·
Just learning about work,energy
- CollegeStudent
- · Replies 14 ·
Static Friction Can Cause Motion
- IamMoi
- · Replies 14 ·
Calculating time constant of a circuit?
- rjackson
- · Replies 7 ·
How Much Does a Steel Wire Stretch When Supporting Moving Masses?
- kopinator
- · Replies 1 ·
Bouyant force accelerates released balloon
- johns123
- · Replies 5 ·
Why are the limits 0 to infinity in the integral over B in equation 4.6?
- SP90
- · Replies 1 ·
Welded discs dropped whilst string wrapped around one, find downward a
- Fluxthroughme
- · Replies 2 ·
Skier down a hill- f=ma (is the QUESTION correct?)
- VidsEpic
- · Replies 1 ·
Moving Square Loop through a Magnetic Field
- hyddro
- · Replies 8 ·
Using Newton's Laws Question involving tension
- needingtoknow
- · Replies 17 ·
Finding angular speed of a precessing gyroscope
- Fluxthroughme
- · Replies 2 ·
Maximum tension between train cars, F=ma
- VidsEpic
- · Replies 1 ·
Opposing accelerations on stone drop/throw up problem
- Tallgirl
- · Replies 6 ·
Calculating Tension Ratios for Equilibrium of Identical Bodies
- kastamonu
- · Replies 5 ·
Finding the Center of Mass of a System of Rods
- Litcyb
- · Replies 8 ·
Calculating Angular Magnification and Image Position in Compound Lens Systems
- Darth Frodo
- · Replies 1 ·
What Force is Needed to Wheel Over an Obstacle?
- Litcyb
- · Replies 4 ·
Work function and energy of X ray photon emitted by anode
- SecretSnow
- · Replies 3 ·
Potential difference from a charged wire with voltmeter
- ehabmozart
- · Replies 1 ·
Calculating Potential Difference in a Series Circuit
- wkn0524
- · Replies 2 ·
Angular momentum sliding beam
- tri5
- · Replies 1 ·
Nuclear Reactions, Can anyone check my solution?
- maceng7
- · Replies 1 ·
Adding and Subtracting vectors; Finding change in velocity
- ShannonBanana
- · Replies 2 ·
Derive lorentz transform for energy
- gboff21
- · Replies 2 ·
Stopping potential and electron state?
- SecretSnow
- · Replies 1 ·
Electric Field of a Hollow Cylidrical Conductor
- Zook104
- · Replies 6 ·
Moment of Inertia for a Decreasing Angular Velocity
- leehufford
- · Replies 5 ·
Determine the Angluar Velocity of the Slender Rod.
- Northbysouth
- · Replies 7 ·
Solving for AC Voltmeters with a Pure Resistance and Pure Inductance
- bendaddy
- · Replies 2 ·
Conservation of momentum and conservation of kinetic energy
- fredrogers3
- · Replies 2 ·
Why Does My Calculation of Ro Result in Zero for a Thermistor?
- lionely
- · Replies 10 ·
Find the angular velocity of the Absolute Motion System
- Northbysouth
- · Replies 4 ·
Relating equations to functions
- leehufford
- · Replies 12 ·
Statics: Rigid Body Equilibrium
- Chandasouk
- · Replies 1 ·
Why is the radius of a twirling rope represented by Lcostheta instead of r?
- indelible.eggs
- · Replies 4 ·
Electric field lines in a cylinder
- jaumzaum
- · Replies 5 ·
Conservation of mechanical energy for skier on sphere
- NathanLeduc1
- · Replies 3 ·
Magnitude of the Electric Force on q
- wkn0524
- · Replies 2 ·
Doppler Shift Special Relativity Question
- nateja
- · Replies 8 ·
Finding momentum of a massless particle
- Saitama
- · Replies 19 ·
How can we ensure a 90 degree oscillation when pulling a slinky spring?
- hulk78
- · Replies 2 ·
Ladder problem, sum of forces and sum of torque
- Jbreezy
- · Replies 2 ·
Angular acceleration caused by mass over a pulley
- Fluxthroughme
- · Replies 17 ·
Pulley free body question - what am I doing wrong?
- johnschmidt
- · Replies 7 ·
Find kinetic energy from center of mass.
- Sneakatone
- · Replies 9 ·
Where is the mass of the joined squares?
- Sneakatone
- · Replies 17 ·
How does centripetal acceleration can cancel out gravity?
- student34
- · Replies 7 ·
Solving an Elastic Collision Problem: Why Isn't it Working?
- Mangoes
- · Replies 2 ·
Free Pivot Rotation: Calculating Kinetic Energy, Angular Speed & Linear Speed
- Cupcakes69
- · Replies 1 ·
Minimum Applied Force for Block and Cart Dynamics Problem
- Felafel
- · Replies 4 ·
Pressure Experiment - P=P0±mg/A
- charlottexo
- · Replies 3 ·
B-field at point P that is produced by the current in two wires
- AxM=Fam
- · Replies 2 ·
What is the Force of Friction on a Painter's Ladder?
- Jbreezy
- · Replies 2 ·
Kinetic and Potential Energy Question
- student34
- · Replies 18 ·
Radial current in a hollow metal cylinder
- Tabiri
- · Replies 24 ·
How Do You Calculate Spring Compression and Cart Speed After Collision?
- x86
- · Replies 3 ·
Calculating Work and State Variables for an ideal Stirling Engine
- WalkTex
- · Replies 3 ·
What is the mass of the baseball bat?
- kopinator
- · Replies 3 ·
Momentum and velocity change from friction after a car collision
- Sneakatone
- · Replies 8 ·
Torque due to electromagnetic induction
- eas123
- · Replies 6 ·
Calvin and hobbes go for a sleigh ride.
- nc9261
- · Replies 2 ·
Projection of surface area elements in vector calculus
- jj364
- · Replies 2 ·
Particle under central force with u(θ) = 1/r substitution
- CAF123
- · Replies 41 ·
Capacity coefficients for two separated conducting spheres
- tsuwal
- · Replies 7 ·
Electric Circuit Question - RC Circuit
- GreenPrint
- · Replies 8 ·
An asteroid flying past the moon
- *Jessica*
- · Replies 21 ·
Hydrostatics question - angled triangular gate?
- theBEAST
- · Replies 33 ·
General quantization of circular motion/spectrum in potential
- Hakkinen
- · Replies 5 ·