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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Girl on a swing, find tension and force
- Feodalherren
- · Replies 32 ·
The minimum KE required for muons to travel a given distance
- Rahulrj
- · Replies 10 ·
Frictionless ring sliding on circle in constant acceleration
- Feodalherren
- · Replies 16 ·
How Is Torque Calculated in a Wrecking Ball Scenario?
- Rijad Hadzic
- · Replies 9 ·
Was the Second Driver Speeding in the Collision?
- Rijad Hadzic
- · Replies 10 ·
Magnitude of net Gravitational Force
- Jonwolf5400
- · Replies 1 ·
Equilibrium of Charges at Circumference of a Circle
- Buffu
- · Replies 5 ·
Writing Kirchhoff Rules for a Multi-Loop Circuit
- carterq
- · Replies 5 ·
Frequency of Vibration of Two Masses Joined by a Spring
- flamespirit919
- · Replies 15 ·
Why objects with different densities occupy different positions in water
- Yoseph Santoso
- · Replies 12 ·
When is Conservation of angular momentum valid?
- Nabin kalauni
- · Replies 9 ·
Forces due to atmospheric pressure won't cancel in an open tank
- Miguel Velasquez
- · Replies 13 ·
Why are specific enthalpies equal in this heat transfer problem?
- strider171
- · Replies 3 ·
Conserving Momentum for Rocket Engines
- David112234
- · Replies 10 ·
Will a 27N Push Move a 50kg Object on a Surface with 0.6 Static Friction?
- generalguiness
- · Replies 3 ·
KVL in multiloop circuit with USB power, lipo battery, and LC transmitters
- Tyler R
- · Replies 18 ·
Final Temperature of a Lightbulb filament
- Augustine Duran
- · Replies 5 ·
Retarding impact force when object impacts stationary object
- GeorgeMJ
- · Replies 10 ·
Solving John's Elevator Problem: Acceleration & Time/Distance
- pangolo
- · Replies 11 ·
Period and amplitude of a 425 g mass on a horizontal spring
- alex91alex91alex
- · Replies 5 ·
After 14ms the current drops -- Find the capacitance at C
- Kelsi_Jade
- · Replies 4 ·
Pile Driver Energy Homework: Calculate Change in PE
- AutumnBeds
- · Replies 6 ·
Two Capacitors connected in Series and to a 10V battery.
- Kelsi_Jade
- · Replies 4 ·
How Does Induced Current Vary in a Metal Coil Within a Magnetic Field?
- Dousin12
- · Replies 16 ·
What is the question really asking? Just understanding the question
- Ashley1nOnly
- · Replies 3 ·
Capacitance of the capacitor after inserting the dielectric
- Atacan
- · Replies 6 ·
Calculating Momentum for 1kg Ball Falling Freely
- JayK
- · Replies 7 ·
Electromagnetic Induction repulsion
- Dousin12
- · Replies 4 ·
How do I translate periodic motion to translational motion?
- Eclair_de_XII
- · Replies 6 ·
Special Relativity: Length Contraction Problem
- peroAlex
- · Replies 3 ·
Bumper car collision velocity using momentum conservation
- Rijad Hadzic
- · Replies 16 ·
Why does an ideal gas have parallel isotherm and isenthalpic curves?
- ScareCrow271828
- · Replies 3 ·
Find mass of cylinder (rotational motion question)
- Valerie Prowse
- · Replies 19 ·
Atmospheric pressure on floating cube with clearance
- ScareCrow271828
- · Replies 4 ·
How Do You Calculate the Mass of a Rotating Square Plate?
- SteveS
- · Replies 8 ·
Equilibrium of Non-Uniform Box on Two Scales
- alex91alex91alex
- · Replies 7 ·
How Much Work Does Kinetic Friction Do on a Sliding Block?
- TheFlemster
- · Replies 6 ·
How Do You Calculate Torque on a Wrench?
- tennisgirl92
- · Replies 4 ·
How high will UT bounce on a bungee jump from the Golden Gate Bridge?
- Superman123
- · Replies 6 ·
Harmonic oscillator with phase shift: when is x = 0?
- alex91alex91alex
- · Replies 4 ·
Magnetic flux, current and magnetic field confusion
- Cocoleia
- · Replies 2 ·
Can I assume diatomic gas from Cp = 7/2 for internal energy?
- MauricioValdez
- · Replies 2 ·
Tension needed for 440Hz A string on violin
- Torrie
- · Replies 7 ·
Magnetic flux - magnitude of the change
- superslow991
- · Replies 14 ·
Find the distance over which the skater will move
- Rijad Hadzic
- · Replies 8 ·
A car traveling upward on inclined plane
- EastWindBreaks
- · Replies 11 ·
Distance an object travels after sliding and falling from roof
- Natalie Johnson
- · Replies 8 ·
Momentum and force combined question
- JayK
- · Replies 3 ·
Calculating the V, I and R of resistor components
- marand2017
- · Replies 5 ·
Transverse Wave Velocity/Acceleration
- sbuzsaki
- · Replies 10 ·
How Does Moving Towards the Center Affect a Merry-Go-Round's Kinetic Energy?
- carsof
- · Replies 1 ·
What is the speed of air flow in a pipe driven by compressed air for 12 minutes?
- SpiraRoam
- · Replies 24 ·
A block of mass m=0.2 kg, is pushed by a spring of stiffness k=300 N/m
- selhai97
- · Replies 11 ·
Calculate the total change in length of a brass bar
- DevonZA
- · Replies 8 ·
Buoyant force on a man in air
- tennisgirl92
- · Replies 7 ·
Tensile stress in perforated steel plate
- DevonZA
- · Replies 6 ·
What Is the Linear Acceleration of the Center of Mass of Link OA?
- Ian Blankenship
- · Replies 5 ·
Special Relativity - Is damage absolute?
- pbj_sweg
- · Replies 6 ·
Calculating the moment of inertia of a solid sphere
- Rahulrj
- · Replies 3 ·
Concepts at play with polarization?
- Manodesi524
- · Replies 1 ·
Heat flow through aluminium rod
- em3
- · Replies 6 ·
EM Waves - Would the bulb glow?
- jlmccart03
- · Replies 8 ·
Ineleastic perpendicular collision question
- MomentumIsHard
- · Replies 8 ·
Ultraviolet Laser Beam Shaping With Constraints
- Strelkov
- · Replies 1 ·
How Does Energy Conservation Affect Block Movement Near a Wall?
- AdkinsJr
- · Replies 5 ·
Crane lifting 225kg: work input, tension, and power with friction
- WherE mE weeD
- · Replies 17 ·
Difference between instantaneous velocity and acceleration
- otownsend
- · Replies 6 ·
Coating Eyeglass Lenses(destructive interference)
- Joe Butler
- · Replies 1 ·
Induced Current in a Coil with Changing Magnetic Field
- BrainMan
- · Replies 5 ·
Biconvex Lens Floating on Mercury
- Marcus95
- · Replies 13 ·
Determine the resistance of an ammeter.
- Asmaa Mohammad
- · Replies 6 ·
What Is the Smallest Spot Diameter the Human Eye Can Detect?
- aDabOfRanch
- · Replies 4 ·
Does Separating the Plates of a Capacitor Affect Its Charge?
- needhelpplease
- · Replies 13 ·
Pointmass colliding with windmill
- Alettix
- · Replies 11 ·
Gauss' Law - Electric Field for a Charged Metal Plate
- Gustavo
- · Replies 1 ·
Converting between a known and unknown temperature scale
- BOAS
- · Replies 10 ·
Inertia tensor for point masses
- physicsdude101
- · Replies 4 ·
Finding initial oxygen mass with gauge and absolute pressure in ideal gas law
- Rizke
- · Replies 6 ·
(LC Circuit) Finding cap charge after connecting to inductor
- Vanessa Avila
- · Replies 18 ·
Kirchoff's Voltage Law and Current Law --
- shibuzgeorge
- · Replies 13 ·
How Do You Model a Block Attached to Springs in a Frictionless Box?
- lz975545
- · Replies 1 ·
Why does this bulb get brighter after the switch is closed
- alexdr5398
- · Replies 16 ·
Converting velocity in km/h to acceleration and distance with time in minutes
- Bunny-chan
- · Replies 20 ·
Potential between concentric spheres
- Kara386
- · Replies 1 ·
What is the Resistance Between A and B in a Circuit?
- Kara386
- · Replies 4 ·
Velocity of electron at the end of a contraction
- randomgamernerd
- · Replies 3 ·
Finding equation of state from Gibbs free energy expression
- cake-jake1
- · Replies 3 ·
Ideal gas in a cylinder with a piston
- Elias Waranoi
- · Replies 5 ·
Laplace transforms in circuit analysis, finding missing values
- Cocoleia
- · Replies 5 ·
Torque and rotational equilibrium question
- Redwall54
- · Replies 6 ·
Acceleration of Center of Mass
- Ian Blankenship
- · Replies 4 ·
Projectiles launched at complementary angles
- Bunny-chan
- · Replies 16 ·
Calculating the Efficiency of a Heat engine
- grandpa2390
- · Replies 32 ·
Calculate acceleration due to gravity of hemisphere
- Kara386
- · Replies 1 ·
Show that the total eigenfunction must be antisymmetric
- tarkin
- · Replies 2 ·
Acceleration amplitude of a damped harmonic oscillator
- TheBigDig
- · Replies 1 ·
What is the speed of the rocket relative to the Earth?
- terryds
- · Replies 2 ·
Current through 60Ω resistor and inductor voltage after switching
- superslow991
- · Replies 52 ·
What is the acceleration of the cart? :)
- Dusty912
- · Replies 7 ·
Physics Projectile Word Problem -- Dropping packages from an airplane
- Retweetfire
- · Replies 20 ·