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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Electrostatic potential of a circular ring
- KiNGGeexD
- · Replies 14 ·
How to derive the de Broglie Relation
- jigsaw21
- · Replies 4 ·
How Many Square Meters of Solar Panels Are Needed for Household Usage?
- Zeynaz
- · Replies 6 ·
What is the Transformation of Four-Velocity between Frames?
- Kaguro
- · Replies 10 ·
Fluid Mechanics: Momentum Equation- When to include p_atm in equation?
- Master1022
- · Replies 6 ·
Help with a heat transfer question
- Zeynaz
- · Replies 4 ·
What is the Relationship Between Entropy and Temperature?
- HmJeremy
- · Replies 2 ·
Electric potential at the edge of a thin charged circular plate
- Aryamaan Thakur
- · Replies 2 ·
Hooke's Law vs. Conservation of Energy
- keroberous
- · Replies 5 ·
A statics problem with a mass on the end of a string
- andrei0893
- · Replies 11 ·
Finding the Force on a Current-Carrying Wire
- themountain
- · Replies 1 ·
LDR circuit electricity question
- Zeynaz
- · Replies 3 ·
Help critique my problem solving and thinking process (problem included)
- ryley
- · Replies 6 ·
Mastering Physics: Acceleration of a Pulley
- danielhep
- · Replies 4 ·
How to show that P moves with a constant speed u
- Nicci
- · Replies 22 ·
The magnitude and direction of the minimum magnetic field
- themountain
- · Replies 5 ·
Filling a long tube by submerging it in fluid
- JuliaH19
- · Replies 15 ·
Fluid Mechanics: Head Loss Question (Conceptual)
- Master1022
- · Replies 3 ·
Fluid Mechanics: Momentum Equation Propeller Question
- Master1022
- · Replies 5 ·
Tension on a massless pulley homework.
- Crystal037
- · Replies 4 ·
Linear Momentum - Bullet hitting pendulum
- EEristavi
- · Replies 2 ·
Angular momentum of a system relative to a moving reference frame.
- Davidllerenav
- · Replies 1 ·
Flux and Induced EMF vs displacement graphs
- Taniaz
- · Replies 7 ·
Why does the displacement force act on AC - BC?
- nb2000
- · Replies 2 ·
Index of refraction and wavelength
- DPMF6973
- · Replies 2 ·
Electric Field Lines: Should Earthed Plate Have No Charge?
- PhysicStud01
- · Replies 7 ·
The safety of radioactivity in Medicine
- Zeynaz
- · Replies 11 ·
Calculating Electron Emission and Reflection in the Photoelectric Effect
- Zeynaz
- · Replies 3 ·
Binary System in circular orbit: Separation distance between stars
- Thomas Smith
- · Replies 5 ·
How Do I Calculate Temperature in a Thermodynamics Problem?
- Zeynaz
- · Replies 10 ·
Finding the components of stress in bone cement
- nerdeagle24
- · Replies 6 ·
Force on a magnet in a magnetic field
- TheBigDig
- · Replies 9 ·
How do I show that 2 moving objects collide?
- SueJ
- · Replies 3 ·
Beat frequency and Doppler shift
- dawn-
- · Replies 3 ·
Luffing Jib Load, With and Without Sheave Pulley
- Herbid
- · Replies 3 ·
How to determine the magnitude of the electric force
- hotram
- · Replies 12 ·
How to calculate this dispersion relation
- Karl86
- · Replies 5 ·
Fluid Mechanics: Flow rate required to achieve a constant height
- WhiteWolf98
- · Replies 4 ·
Differential equation for the simple pendulum
- Celso
- · Replies 1 ·
Resistors in Parallel or Series?
- DaynaClarke
- · Replies 5 ·
Work done by static friction on a block pulled with paper
- Caio Graco
- · Replies 12 ·
Maximum displacement of a coupled pendulum
- Astrogirl101
- · Replies 1 ·
How Does the Particle's Velocity Change on the Roller Coaster Track?
- Celso
- · Replies 8 ·
Is This the Proper Frame for Your Needs?
- Abhishek11235
- · Replies 8 ·
Pressure on table from aquarium
- Kako
- · Replies 4 ·
Verify Eigenstates: Solving s_i & m_i Equations
- Philip Land
- · Replies 2 ·
Energy density due to infinite uniform line charges
- Karl86
- · Replies 45 ·
Why Does My Relative Density Calculation Not Yield a Numerical Value?
- Taylor_1989
- · Replies 3 ·
How to find the velocity of a water leak in a spinning tank
- DigitalCrush
- · Replies 7 ·
Problem Concerning Rotational Kinetic Energy
- Curtiss Oakley
- · Replies 19 ·
Bowling Ball Changing Rotational Direction
- Curtiss Oakley
- · Replies 5 ·
Magnetic field of plane with thickness d with uniform surface current
- SherlockHolmie
- · Replies 4 ·
Problem concerning a mass with charge in a homogeneous electric field
- youmei0426
- · Replies 2 ·
Water Slide Physics: Solving for Angular Momentum, Velocity, and Energy
- solarcat
- · Replies 7 ·
Bodies connected by a light inextensible string on an inclined plane
- Bill Gregoryson
- · Replies 1 ·
Calculating elapsed time in different frames
- Abhishek11235
- · Replies 3 ·
Fluid Dynamics - Mass Conservation, State Equation for an Ideal Gas
- WhiteWolf98
- · Replies 4 ·
How Does Adding an Aluminum Rod Affect Water Temperature and Steam Production?
- cogs24
- · Replies 1 ·
Why is the Kinetic Energy 0 at an infinite distance away from a point?
- A131313
- · Replies 1 ·
Electric field problem — Changing the charge on two spheres
- KingAlexander211B
- · Replies 3 ·
Is the Normal Force in an Elevator Conservative?
- Caio Graco
- · Replies 4 ·
Thrust on an triagular lamina emersed in a liquid.
- Navin
- · Replies 3 ·
Kirchoff's law and circuit analysis
- fight_club_alum
- · Replies 1 ·
How do i find the friction force without μ or acceleration?
- helppmeee
- · Replies 18 ·
Electric field of a hollow cylinder
- Zack K
- · Replies 7 ·
Find work done on an ideal gas and a copper block.
- owlman76
- · Replies 1 ·
Thermodynamics: property tables HELP
- MEAHH
- · Replies 1 ·
Shear Stress over Stationary Plate
- lfwake2wake
- · Replies 1 ·
Calculating Air Column Length in a Capillary Tube Using Boyle's Law
- Machodog
- · Replies 1 ·
Fluid Flow; Bernoulli's Equation
- Proleague
- · Replies 1 ·
Heat and internal energy of gas
- akoma714
- · Replies 1 ·
Work in reversible expansion of Van der Waals gas with mobile wall
- Jalo
- · Replies 1 ·
AQA physics paper On potential energy in mass spring system
- bonbon22
- · Replies 5 ·
Direction of current in smaller loop on the left and on the right
- Jenny Physics
- · Replies 1 ·
Enhancing the thermal conductivity of Phase changing materials
- Aqib409
- · Replies 1 ·
Error Analysis Trig: Diff theta w.r.t o & h
- lovemake1
- · Replies 1 ·
How Does Total Mass Affect Acceleration in an Atwood's Machine?
- cloudage
- · Replies 1 ·
Describe the energy changes in this system (Water reservoir to hose pipe)
- rollcast
- · Replies 1 ·
Cannonball Launch Homework: Find Range & Vy
- warrior2014
- · Replies 1 ·
Load and deflection (beam experiment)
- student 123
- · Replies 1 ·
Internal energy after evaporation?
- Rblswimmer456
- · Replies 1 ·
Find Work of Isothermal Expansion: Questions Answered
- Pixter
- · Replies 1 ·
Conduction of Heat through a Material
- Jared944
- · Replies 1 ·
Viscosity constant of a cylinder
- rayman123
- · Replies 1 ·
Resistive force against a bullet
- Deckname
- · Replies 3 ·
Electric field of a charged cube
- Moara
- · Replies 17 ·
Car on a Banked Circular Road: Angle to Make the Loads Equal
- Master1022
- · Replies 15 ·
Thermodynamics: Joule / Brayton Cycle - Specific Work Done Question
- Master1022
- · Replies 8 ·
Find the Driving frequency and phase angle for this R-C phasor problem
- MedEx
- · Replies 5 ·
High school Physics - Simple Harmonic Motion
- bigbosswilly
- · Replies 6 ·
The Mystery of the "Man on a Boat" Problem with Easy Tips
- fartguy46
- · Replies 21 ·
Moment of Inertia of this combined system?
- jaewonjung
- · Replies 3 ·
Finding the change in velocity through a potential difference
- Patches1532
- · Replies 6 ·
Asymmetrical Static Equilibrium
- Mike94
- · Replies 11 ·
Find Tension Force for Cord Holding Gate
- solarcat
- · Replies 11 ·
Acceleration needed to keep an object from sliding down a windshield
- pochemuchka
- · Replies 15 ·
How to compare two measurements with uncertainties in terms of sigma?
- CCofADoa
- · Replies 2 ·
How Does Net Torque Affect Pulley Acceleration in an Atwood Machine?
- solarcat
- · Replies 3 ·
Find the tensions of two strings in mechanical equilibrium
- Davidllerenav
- · Replies 15 ·
How Is Internal Energy Calculated for an Ideal Gas Using Temperature Change?
- tuki
- · Replies 1 ·