Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Capacitance capacitor parallel plate with dielectric (Gauss)
- Ark236
- · Replies 1 ·
Are Your Calculations for Energy and Friction Correct?
- HaoPhysics
- · Replies 2 ·
How does the radius affect frictional force in circular motion?
- HaoPhysics
- · Replies 7 ·
How is kinetic energy affected by different reference frames?
- penutbutr
- · Replies 10 ·
What does net forward thrust mean for an airplane towing a glider?
- scottshannon
- · Replies 12 ·
Why there's a reading on the voltmeter connected to coil Q?
- Asad Raza
- · Replies 5 ·
Tarzan swings on vine, will it snap?
- ewalker31438
- · Replies 3 ·
Lorentz force - particle in an odd magnetic field
- Toby_phys
- · Replies 1 ·
Why does Carnot theorem proof work only one way?
- Ruby_338
- · Replies 5 ·
Block compressing spring on friction surface with variable acceleration
- ILOVEPHYSIC
- · Replies 3 ·
The collimated parallel beam of a LASER
- Asmaa Mohammad
- · Replies 4 ·
How Do You Calculate the Magnetic Field Inside a Solenoid?
- Arman777
- · Replies 2 ·
Electric field through an aperture
- Buffu
- · Replies 19 ·
Normal force on 74 kg person in accelerating elevator
- TheFlemster
- · Replies 14 ·
Charges in Magnetic Fields from Surfing Physics book
- alv
- · Replies 5 ·
The strength of induced electric field
- Rahulrj
- · Replies 18 ·
Net Force acting on block on incline
- TheFlemster
- · Replies 1 ·
Calculating work of Otto cycle stages - Thermodynamics.
- Pull and Twist
- · Replies 1 ·
Energy and Momentum [Spring (word problem)]
- AlexisFair
- · Replies 3 ·
Net Positive Charge on 1km Power Line
- Buffu
- · Replies 17 ·
How do I use the number of oscillations given?
- baldbrain
- · Replies 18 ·
Speed of Sound using a Resonant tube
- baldbrain
- · Replies 12 ·
What Is Incorrect About Grounding in Electromagnetic Theory?
- Rahulrj
- · Replies 20 ·
Velocity of particle leaving wedge
- WubbaLubba Dubdub
- · Replies 12 ·
Find the velocity of block a using vector method.
- Dusty912
- · Replies 6 ·
Op-amp circuit with feedback: finding output voltage using KCL
- brk51
- · Replies 9 ·
What Force Acts Between Hemispheres of a Charged Soap Bubble?
- Buffu
- · Replies 14 ·
By how much is each post compressed?
- Wimpalot
- · Replies 5 ·
Energy of the photon emitted in a gamma ray decay
- Rahulrj
- · Replies 19 ·
Inclined plane - a small sphere, a big sphere and a cylinder
- ChessEnthusiast
- · Replies 13 ·
Potential energy by concentric shells
- Buffu
- · Replies 1 ·
Field due to ring charge at x-y axis.
- Buffu
- · Replies 5 ·
Why does a ring have zero work if it travels a distance?
- Yuval M
- · Replies 5 ·
Conservation of Angular Momentum with SHM
- Lianne Evans
- · Replies 8 ·
What Is the Minimum Coefficient of Friction for a Tilted Cube?
- WilliamDaFoe
- · Replies 3 ·
How Does Impulse Affect Acceleration and Tension in a Disk-Particle System?
- WubbaLubba Dubdub
- · Replies 30 ·
Calculating the angle of a double-slit experiment
- MadMartigan
- · Replies 14 ·
Solving separable ODE for gas density in rotating cylinder
- IneedPhysicsss
- · Replies 7 ·
When does moving a charge increase electrical potential energy?
- Nathan phisi
- · Replies 4 ·
How Can I Estimate Neutron Energy in an Elastic Collision with an Oxygen Atom?
- sportcardinal90
- · Replies 1 ·
Work, Gravitational Potential and Kinetic Energy, Spacecraft
- ashyyamora
- · Replies 6 ·
How to linearise this equation for experiment?
- Wimpalot
- · Replies 9 ·
Calculating Final Pressure for a Metal Undergoing Temperature and Volume Changes
- zenicorn
- · Replies 1 ·
How to Determine Centroid of Gate Hydrostatics
- ScareCrow271828
- · Replies 2 ·
Understanding an equation in a dynamics spring problem
- Bunny-chan
- · Replies 4 ·
How deep does a 9cm wooden post submerge in water?
- tennisgirl92
- · Replies 20 ·
Calculating Spring Constant From Plot of T^2 versus r^2
- Physics Dad
- · Replies 4 ·
How Does Wind Turbine Blade Length Affect Power Output?
- shk
- · Replies 2 ·
Moment of inertia of two perpendicular rods linked at 90 degrees
- Gunter_ZA
- · Replies 1 ·
Force needed for hole punch in Metal
- SpiraRoam
- · Replies 1 ·
Special Relativity Conceptual Question
- Dongus
- · Replies 4 ·
Problem with Energy Dissipation
- sojo
- · Replies 5 ·
Finding tension in a swinging rider problem
- Gunter_ZA
- · Replies 2 ·
Projectile fired vertically at 11.4 km/s: finding maximum height
- giantf
- · Replies 25 ·
Oscillation in a hole through the Earth (hole is offset)
- Carbon123
- · Replies 2 ·
Find maximum acceleration given the displacement equation
- edgarpokemon
- · Replies 11 ·
Spring elastic potential, removing mass
- HaoPhysics
- · Replies 6 ·
Why sin and cos are swapped for bead on circular hoop
- efn
- · Replies 9 ·
Finding the volume of a 410 kg bluefin tuna at 15 m depth
- tennisgirl92
- · Replies 9 ·
How Does Friction Affect Spring Compression in a Bullet Collision?
- Deadawake
- · Replies 13 ·
Conceptual question with Concentric Shell Potental
- Manodesi524
- · Replies 1 ·
What's the Velocity at the Highest Point of a Swing?
- Oliver919
- · Replies 10 ·
Is the AP Physics 1 textbook flawed in its explanation of moment of inertia?
- Ercillent
- · Replies 5 ·
Gravitational Force in terms of Density?
- EthanVandals
- · Replies 7 ·
Height of falling object vs. compression of spring
- HaoPhysics
- · Replies 1 ·
Why does holding a weight above my head tire me if no work is done?
- HaoPhysics
- · Replies 4 ·
Basic trigonometry in dynamics force problem
- Bunny-chan
- · Replies 3 ·
Trouble with 2 step velocity transformation in SR
- MikeLizzi
- · Replies 17 ·
Calculating the energy of anti neutrino
- Rahulrj
- · Replies 10 ·
Calculate angular velocity of a ball rolling down incline?
- Dinkleberg
- · Replies 6 ·
Pulling a puck through the hole
- Nabin kalauni
- · Replies 7 ·
What Is the Correct Source Voltage Amplitude for Desired Power in an AC Circuit?
- superslow991
- · Replies 19 ·
Why do equal impulses give equal final momenta, not velocities?
- Avefan
- · Replies 1 ·
Statics and Rotational Dynamics
- TheFlemster
- · Replies 16 ·
How to find the magnitude of the acceleration given F, kF, m
- Nairb
- · Replies 5 ·
Find the change in height of a bridge
- frozen-pizza
- · Replies 3 ·
Calculating Velocity at the Bottom of a Quarter Circle Track
- tennisgirl92
- · Replies 8 ·
Error Transmission (Moment of Inertia)
- Const@ntine
- · Replies 4 ·
Coefficient of performance of refrigerator
- Elias Waranoi
- · Replies 2 ·
Time required for disk to reach angular speed?
- Rijad Hadzic
- · Replies 11 ·
Number of modes in optical fiber
- says
- · Replies 1 ·
Finding magnitude of two charge given midpoint
- paulie
- · Replies 1 ·
Understanding Internal Energy Changes in Phases of Water
- SpiraRoam
- · Replies 8 ·
Trying to solve conservation of momentum problem
- patric44
- · Replies 14 ·
Find Absolute Magnitude, distance and "T" of binary star system
- Unteroffizier
- · Replies 10 ·
Ratio of rotational inertias for belt-connected wheels
- kuuy
- · Replies 7 ·
What is the relationship between power in watts and power in dBW?
- Torrie
- · Replies 11 ·
How to calculate the tension in a beam of a bridge?
- Wimpalot
- · Replies 29 ·
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 ·