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 Find the First Time Position and Velocity Reach Their Maximum Values?
- lefthand
- · Replies 3 ·
Momentum Change of Colliding Balls: A Physics Problem
- Count Duckula
- · Replies 3 ·
Linear Algebra System of Equations
- MDTeen
- · Replies 7 ·
Bernoulli's Principle density and velocity
- physgrl
- · Replies 2 ·
Inertia of a flywheel, with a mass attached in a cord.
- santais
- · Replies 1 ·
What is the relationship between the oscillations of two masses on a spring?
- torquemada
- · Replies 10 ·
Calculating Force to Submerge 5 kg Object in Water
- physgrl
- · Replies 2 ·
Just a quick one, Have I got my Mass/Spring/Damper model correct?
- Jowin86
- · Replies 36 ·
A body on a table with friction.
- dttah
- · Replies 3 ·
Affect of Temperature on Squash Balls experiment
- iSasha
- · Replies 5 ·
Minimum radius for plane to turn upward at 770 km/h with 9g acceleration limit
- SS2006
- · Replies 16 ·
Calculating Object Height Using a Pinhole Camera
- MoniMini
- · Replies 4 ·
Focal length eyepiece for telescope
- grouper
- · Replies 16 ·
Projectile Motion Problem. Is my answer correct ?
- Diff.Ed
- · Replies 2 ·
Average velocity vs Final velocity
- BernieCooke
- · Replies 5 ·
The total weight o a gas filled balloon is 1500N.
- VICKZZA
- · Replies 5 ·
Calculating Torque, M.o.I, and Angular Acceleration
- Carnivroar
- · Replies 4 ·
Energy and Simple Harmonic Motion of spring
- Taciturn Type
- · Replies 1 ·
Why is AC better than DC for long-distance power transmission?
- jlax31
- · Replies 6 ·
Tricky spring problem. Amplitudes and AccelerationMax
- yigh
- · Replies 2 ·
Finding angle of deviation in a prism from Snell's law
- John982
- · Replies 2 ·
Determine the frictional force acting on the box
- physicsgurl12
- · Replies 7 ·
Finding kinetic energy from force, distance, mass
- nc1617
- · Replies 1 ·
Calculating Power Output for a Cyclist Coasting Down a 7.2 Degree Hill
- Whenderson1
- · Replies 1 ·
Space shuttle takeoff with thrust and air resistance
- catandphysics
- · Replies 3 ·
How Do Wavelength Changes Affect Electron Energy Liberation?
- sdecosta100
- · Replies 2 ·
When does an airplane's instantaneous velocity equal its average velocity?
- hotshot1kille
- · Replies 6 ·
Finding tension in a string attached to a mass
- physicsgurl12
- · Replies 9 ·
How Much Oil Can a 65% Efficient 5kW Motor Pump Per Minute?
- tysajdak
- · Replies 2 ·
Work and net work question - Thanks
- nukeman
- · Replies 1 ·
What ions produce a 2.00 V potential in an electrochemical cell?
- ana111790
- · Replies 2 ·
Metal cube with cavity: buoyant force and weight ratio
- ChunkymonkeyI
- · Replies 7 ·
Special Relativity Muon Distance Travelled Question
- ecneicS
- · Replies 1 ·
Simple Mechanics, relative motion example
- twowheelsbg
- · Replies 1 ·
How can I determine the common factors of a set of numbers?
- jayjay713
- · Replies 1 ·
Canisters Rolling Down a Half Pipe
- onegreatweb
- · Replies 1 ·
Two boxes on ramp at constant speed with kinetic and static friction
- Firben
- · Replies 20 ·
How do you find the difference in the angle of refraction?
- angiep410
- · Replies 4 ·
Finding velocity and acceleration components for motion on a parabolic path
- Pepsi24chevy
- · Replies 2 ·
How to distinguish the charge carry by different object after rub by something?
- henry407
- · Replies 1 ·
Finding final velocity of a 2.0 kg load sliding down a 30° incline with friction
- andorei
- · Replies 3 ·
Capacitor Discharge: Deriving the Correct Expression for Potential Difference
- Ahmedbasil
- · Replies 4 ·
How Do You Calculate Entropy Change When Melting Ice at Varying Temperatures?
- chriswilson
- · Replies 1 ·
Pulleys moving down with constant speed
- amal
- · Replies 11 ·
How hard does the beam push inward on the wall?
- QuarkCharmer
- · Replies 12 ·
Determine the velocity of the two blocks right after the collision
- cupcaked
- · Replies 3 ·
What is the period of a pendulum that takes 1.2s from L to R to S?
- MoniMini
- · Replies 2 ·
Finding overall density of 18-karat gold alloy
- anaksunamoon
- · Replies 4 ·
A rigid H falls rotating about one of its legs. What's its angular velocity?
- DavidAp
- · Replies 3 ·
Simple harmonic oscillator properties, photons, and wavelength calculations
- Lochie101
- · Replies 2 ·
Cart on loop: velocity at top, normal force, and loss of contact
- imisschem
- · Replies 13 ·
Scale Reading of Normal Force: Due by Midnight
- IBdoomed
- · Replies 2 ·
If there was a zero net acceleration at the equator?
- PotentialE
- · Replies 4 ·
Momentum/Collision/Energy Questions
- physicswannab
- · Replies 1 ·
Split gravitational force into x, y, and z componenets
- RossH
- · Replies 7 ·
How Do You Calculate the Density of Earth's Core Given Its Mantle Density?
- mendem03
- · Replies 1 ·
Force Needed to Stop a Flying Bullet
- IBdoomed
- · Replies 4 ·
Why Does a Negative Spring Constant Give a Nonreal Period in Oscillation?
- bmx_Freestyle
- · Replies 1 ·
Mechanics Falling Chain Problem
- harrietstowe
- · Replies 1 ·
How Does a Toaster's Ejection Spring Impact Toast Height?
- the1cyrus
- · Replies 3 ·
Static Equilibrium / Normal Forces / Braking Forces on tires
- Ghostscythe
- · Replies 6 ·
Deriving expressions for angular velocity and acceleration
- drofenaz
- · Replies 5 ·
Simplifying KE/Momentum Relativistic Problem
- Vorde
- · Replies 3 ·
How do I solve a Series RLC circuit?
- wiz0r
- · Replies 23 ·
Why does kinetic energy decrease in a collision if momentum is conserved?
- whoareyou
- · Replies 26 ·
Newton's Law, tension, blocks, pulleys at an angle, friction
- gigidy-goo
- · Replies 2 ·
Finding the lifetime of a main sequence star.
- constantinou1
- · Replies 2 ·
Do current loops attract or repel when current is increased or decreased?
- physicsjock
- · Replies 14 ·
Finding I5 current in a multi-wire circuit using Kirchhoff's rules
- BadAnima
- · Replies 7 ·
Water velocity through hole in tank using Bernoulli equation
- DrunkApple
- · Replies 1 ·
I dont understand how to get velocity from (6.00i - 1.00j) ?
- nukeman
- · Replies 5 ·
Spinning puck rotational motion
- amohamed
- · Replies 1 ·
Problem with Gravitation inside the Earth
- xnitexlitex
- · Replies 12 ·
Mass of Jupiter using its moon Sinope
- johnq1
- · Replies 7 ·
How Does Doubling the Mass Affect Wave Speed on a Wire?
- valeriex0x
- · Replies 2 ·
Critical Angle of Glass Lab: Is My Graph Wrong?
- lionely
- · Replies 2 ·
How Can Farhana Reach the Truck in Time?
- hotshot1kille
- · Replies 10 ·
Special Relativity: Multiple FoR
- RandomName
- · Replies 2 ·
Angular Separation of Stars: Min Resolved w/ Diffraction Effects
- grouper
- · Replies 3 ·
Rotational kinematics of a turntable
- Crusaderking1
- · Replies 6 ·
Finding the mass of a screw lab.
- jayjay713
- · Replies 5 ·
Conservation of Angular Momentum Problem with Rod and Bullet
- DoTell
- · Replies 4 ·
Ball fired out of a spring gun differential equation
- Catalytical
- · Replies 5 ·
Parallel circuits, Emfs and kirchoff's laws
- Prodigium
- · Replies 4 ·
Airplane acceleration needed for takeoff at 2.4 km/h
- hotshot1kille
- · Replies 7 ·
Can physics help improve your hockey skills?
- blarginsnarf
- · Replies 4 ·
Binary stars apparent and absolute magnitudes
- cpives
- · Replies 1 ·
Gravitation Potential Energy Problem of WHY?
- DrunkApple
- · Replies 9 ·
Why are beta particles less penetrating than x-rays?
- ZedCar
- · Replies 3 ·
How Do You Calculate the Moment of Inertia for a Complex Rod Structure?
- mirandasatterley
- · Replies 14 ·
Can someone with this notation? vectors
- ms.tangential
- · Replies 3 ·
Why does B represent the magnetic field and what is H?
- Harrisonized
- · Replies 17 ·
Why can't kinetic energy and hf find De Broglie wavelength?
- fanwars
- · Replies 5 ·
Surface area formula proof - integrate circumference of volume of revolution
- whatisreality
- · Replies 1 ·
Equation for gravitational torque
- alem
- · Replies 1 ·
Interference in Thin Films, figuring out the phases
- emmy
- · Replies 1 ·
Maximum diameter of hole punched in polystyrene using shear stress
- tadisc
- · Replies 4 ·
Is it jut me or is there an error in this example?
- GingerKhan
- · Replies 3 ·
Is Linear Momentum Conserved in a Collision Between a Disk and Particle?
- Dschumanji
- · Replies 5 ·
Very simple problem: Derrive equation for KE.
- Scintillation
- · Replies 2 ·