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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Rotational and Translational Kinetic Energy - marble and bowl problem.
- binbagsss
- · Replies 4 ·
Why why why? Sum of torque, changes in directions? This is
- riseofphoenix
- · Replies 3 ·
Force diagram for ring/bead problem
- PhizKid
- · Replies 25 ·
How far can the ant walk before slipping off the record?
- cdornz
- · Replies 8 ·
Relating moment of Inertia and pendulum oscillation
- heatherro92
- · Replies 3 ·
How to calculate daytime from a graph
- Deathnote777
- · Replies 2 ·
What is the Radius of an Electron Trajectory in a Magnetic Field?
- 11thHeaven
- · Replies 4 ·
Why is enthalpy change zero in an isothermal process?
- sachin123
- · Replies 4 ·
Calculate the percentage increase in mass
- ASidd
- · Replies 1 ·
Rotation and varying friction coefficient
- Saitama
- · Replies 20 ·
Tension in a spinning rope using differential equations
- sapsapz
- · Replies 22 ·
Average magnitude of force during a 0.4 second impact
- Crushgear64
- · Replies 1 ·
Maximum Acceleration for Crate on Moving Flatbed
- landerson888
- · Replies 2 ·
Engery Conservation in Oscillatory Motion
- Julio Cesar
- · Replies 3 ·
Simple problem about the torque?
- nchin
- · Replies 4 ·
Bullet lodged in rotating rod: angular momentum conservation
- nchin
- · Replies 5 ·
2D completely inelastic collision question
- Hoodoo
- · Replies 6 ·
Minimum and maximum angle to clear a 10 m goal post
- tomstringer
- · Replies 1 ·
Magnet moved through copper ring
- Padenton
- · Replies 1 ·
Finding Tensions (3 strings and 1 mass)
- Prima
- · Replies 2 ·
Question regarding electric circuits and current
- 950315
- · Replies 7 ·
Work done by friction on potted plant
- Lolagoeslala
- · Replies 4 ·
Calculating Energy Transfer and Work Done by a Crane
- Lolagoeslala
- · Replies 1 ·
Minimum possible kinetic energy in an interaction
- Neutrinogun
- · Replies 2 ·
Box moving up a slope by a force
- BWE38
- · Replies 5 ·
How Does a Car's Momentum Change If Its Kinetic Energy Doubles?
- Lolagoeslala
- · Replies 3 ·
What is the Maximum Height of a Pendulum with Given Initial Conditions?
- 99wattr89
- · Replies 2 ·
Calculating Orbital Periods for Spherical Planets in Orbit
- NasuSama
- · Replies 6 ·
Inelastic collision angular acceleration problem
- llisle39
- · Replies 5 ·
Roller coaster friction problem?
- bohobelle
- · Replies 4 ·
How does melting polar ice affect Earth's moment of inertia and day length?
- riseofphoenix
- · Replies 1 ·
Why Is Lowering a Box Considered Negative Work While Gravity Does Positive?
- Lolagoeslala
- · Replies 2 ·
Fluid Mechanics and SHM question Question
- Swaraj M
- · Replies 1 ·
Determine magnitude and direction of the force exerted on the floor
- cdornz
- · Replies 11 ·
What happens to a current source when you replace an inductor with a short circuit?
- Jebus_Chris
- · Replies 5 ·
Distance and direction of one leg of a sailboat sail.
- cdornz
- · Replies 6 ·
How does period change when mass or spring constant changes?
- Julio Cesar
- · Replies 1 ·
Astronomical telescope: derivation - greatest magnification (detail) formula
- jemerlia
- · Replies 1 ·
Energy when going down the escalator
- dawn_pingpong
- · Replies 1 ·
Finding effective resistance of parallel resistors using Kirchhoff's rules
- Flucky
- · Replies 9 ·
What is the Largest Nuclear Fission Model?
- dazza95
- · Replies 2 ·
Antoher Irodov's Problem. Could it be a mistake?
- jaumzaum
- · Replies 7 ·
Difficult 2D Kinematics Question
- michaelplease
- · Replies 7 ·
Does the Force Constant of a Spring Remain the Same When Cut into Two Halves?
- projjal
- · Replies 2 ·
Elastic collision problem involving nuclei
- Hoodoo
- · Replies 7 ·
CRO display (involve D.C and A.C)
- 950315
- · Replies 2 ·
Thermodynamics - Adiabiatc Expansion
- kineticwave
- · Replies 9 ·
RC circuit with two equal capacitors: find capacitance when each reads 40V
- 54stickers
- · Replies 13 ·
Is the Force Described by F = A(10ai + 3xj) Conservative?
- Ishida52134
- · Replies 7 ·
When and Where Do Planetary Systems Form?
- oldspice1212
- · Replies 6 ·
How Much Ice Melts When Shot with a Lead Bullet?
- Bennigan88
- · Replies 1 ·
Elastic collision and kinetic energy problem?
- LarryJ
- · Replies 6 ·
Stiffness in mass spring system
- Smileyxx
- · Replies 6 ·
Why we multiply charges in the coulomb's law equation
- jonah.seler
- · Replies 4 ·
Small Body on a Sphere loss of contact
- jill2040
- · Replies 5 ·
Solving the Bomb Explosion Problem
- strugis
- · Replies 8 ·
Motion, Finding stopping distance
- TheRedDevil18
- · Replies 6 ·
Finding the inertia with a thin rectangular sheet
- kgianqu2
- · Replies 3 ·
Measuring voltages with Ammeters and Voltmeters
- michela02
- · Replies 13 ·
Using Kepler's Law to find speed of a comet in orbit
- johannaposey
- · Replies 8 ·
Cancelling the Earths magnetic field
- deborahcurrie
- · Replies 6 ·
Dropping a closed loop into a magbetic field
- sgstudent
- · Replies 4 ·
Are overdischarged batteries a fire risk?
- Workout
- · Replies 6 ·
Mass of block given μK and Force?
- Ace.
- · Replies 17 ·
Force between blocks in contact on a frictionless surface
- pleasehelpme3
- · Replies 2 ·
Tricky Torque Problem: Solving for Tension and Understanding Beam Forces
- Arooj
- · Replies 5 ·
Can you deduce the coefficient of restitution from impace force plot?
- mokwana1221
- · Replies 13 ·
How can I calculate air resistance without knowing the reference area?
- jff0404
- · Replies 2 ·
Gravity and torque on balls rolling down an incline
- lsginn
- · Replies 2 ·
Calculating Rotational Parameters of a Rotating Sphere
- mistermangos
- · Replies 4 ·
Physics Net Force Incline problem
- salmanamin
- · Replies 1 ·
Finding molar specific heat at constant pressure
- dinospamoni
- · Replies 3 ·
Force -displacement graph question
- Lolagoeslala
- · Replies 1 ·
What are some project ideas using semiconductor devices and other components?
- Saitama
- · Replies 6 ·
You are standing on top of a building. Two balls are thrown
- valhallast
- · Replies 1 ·
Physics Kinetic and Static fricton problem
- salmanamin
- · Replies 1 ·
Wave pulse displacement graph for spring compression
- trivk96
- · Replies 6 ·
Conservation of energy with kinetic energy and spring
- Lolagoeslala
- · Replies 23 ·
Are My Equations Correct for Kirchoff's Rules?
- Workout
- · Replies 2 ·
Unit vectors and direction cosines
- Ragnarok7
- · Replies 4 ·
Proton velocity(magnitude and direction)
- jason shaw
- · Replies 4 ·
Soliton Solutions in Wave Theory
- Sage Lee
- · Replies 2 ·
Why Is My Physics Professor Giving Contradictory Advice?
- Pork
- · Replies 2 ·
Determine resolution of use by modelling it as single slit
- twinklestar28
- · Replies 5 ·
How to Calculate the Components of Forces and Acceleration in Physics Problems?
- vriti1D
- · Replies 1 ·
Circular motion, unbalanced-balanced forces
- pt20army
- · Replies 2 ·
Kinetic Energy rotational and translational conceptual question.
- bdh2991
- · Replies 6 ·
How to find acceleration of 2 masses on a pulley on slanted plane
- infinitylord
- · Replies 2 ·
Physics of the Acceleration and Inertia of a Front Wheel Drive Car
- Annihilator81
- · Replies 1 ·
How Does the Concentration Ratio of Nitrogen to Hydrogen Change with Altitude?
- jaumzaum
- · Replies 2 ·
Torque on a hammer conceptual question.
- bdh2991
- · Replies 1 ·
What are the steps to solving a velocity-time problem with uniform acceleration?
- 200krisx
- · Replies 1 ·
Finding torque exerted by a 1.5 m flywheel at 1500 rpm
- SherBear
- · Replies 2 ·
Simple Optic Resolution Problem/ Rayleigh's Criterion
- bmb2009
- · Replies 1 ·
Concenctric spheres and electron
- masacre
- · Replies 1 ·
Is this the right way to work out this pool ball momentum problem?
- Lo.Lee.Ta.
- · Replies 6 ·
Momentum - velocity due to height
- ngorecki
- · Replies 7 ·
Sign errors in pulley system with friction and rotation
- nontradstuden
- · Replies 3 ·
Motion in two dimention problem
- Ammar w
- · Replies 2 ·