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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Finding an expression for linear acceleration of a hanging mass
- GMc86
- · Replies 5 ·
Eccentric rotation of a trebuchet arm
- meisadam
- · Replies 3 ·
Car traveling uphill at constant speed: finding engine power
- suzukits
- · Replies 6 ·
Energy Transfers: Understanding Scenario with Wind-Up Toy
- Johnboy
- · Replies 3 ·
Solving for Linear Speed of Spherical Shell After Rolling
- anigeo
- · Replies 2 ·
Deriving the equation v = ω√(A² - x²) for oscillatory motion
- PCSL
- · Replies 9 ·
How long for a rotating disk with friction at the rim to stop?
- borobeauty66
- · Replies 4 ·
Rigid Body Rotation: Find Vel & Action on Axis in Eq. Pos.
- dttah
- · Replies 11 ·
How to Calculate Energy Stored in an RLC Circuit?
- danbone87
- · Replies 2 ·
Proving Cross Product Equation: A x (B + C) = A x B + A x C
- ex81
- · Replies 2 ·
Geometry Help: Solving Lagrangian Problem
- Xyius
- · Replies 4 ·
How Do You Calculate Potential Energy in a One-Dimensional Interaction?
- phyzz
- · Replies 1 ·
Isobaric Compression: Homework Help for Ideal Gas Laws
- GRice40
- · Replies 8 ·
Current and Electric Field Direction for Electrons Moving Right
- jauser
- · Replies 4 ·
How can i determine Specific heat capacity of Water cpv if i know all variables
- Firben
- · Replies 1 ·
Circular motion/conical pendulum?
- jiboom
- · Replies 5 ·
Finding work of drag force for tiny aquatic animals
- kbuild
- · Replies 2 ·
Balsa bridge design for 20 lb load with trapezoid clearance
- pasterino
- · Replies 4 ·
Finding acceleration when given coefficients
- nic.harv
- · Replies 3 ·
Calculate Heat Flows in Engines Propelling a Car
- warrior2014
- · Replies 2 ·
Calculating water pressure, gauge pressure
- mm2424
- · Replies 3 ·
How does pressure affect temperature?
- UCstudent
- · Replies 3 ·
What is the efficiency of this reversible engine?
- GeorgeCostanz
- · Replies 2 ·
What is the net work done if an object is ?
- missfashion
- · Replies 2 ·
Solve d with Forces/Torque for Statics Problem
- -Dragoon-
- · Replies 11 ·
Determinging Acceleration and Distance
- C42711
- · Replies 4 ·
Why Does RMS Velocity Increase During Adiabatic Compression?
- UCstudent
- · Replies 3 ·
Calculating weight of underwater object given normal force
- mm2424
- · Replies 3 ·
Thermodynamics problem How to find the temperature of a gas.
- UCstudent
- · Replies 12 ·
Understanding x(θ) and h(θ) in a Triangle Support Beam Problem
- pyroknife
- · Replies 2 ·
Visible Light Transitions in Li++ (Z=3)
- ChiefKeeper92
- · Replies 1 ·
Change in entropy when ice melts to water at 0°C
- logearav
- · Replies 1 ·
Sinusoidal function, find its parameters
- voltaire101
- · Replies 1 ·
Calculating Force Using Work-Energy Relationships
- Wa1337
- · Replies 2 ·
Simple energy dissipated problem but I can't figure it out
- jauser
- · Replies 5 ·
How Long Does It Take a Feather to Fall 1.4 Meters on the Moon?
- C42711
- · Replies 3 ·
Cannon Velocity after firing Cannonball
- HarleyM
- · Replies 4 ·
United States Physics 1 With Calculus - Gravitation
- GreenPrint
- · Replies 5 ·
United States Physics 1 With Calculus
- GreenPrint
- · Replies 8 ·
Bohr Model Equations: Kinetic and Potential Energy in Hydrogen Atom
- Woopy
- · Replies 1 ·
Physics extended essay topic ideas for aerodynamics experiments
- lucas1
- · Replies 2 ·
Hardest question on Physics exam
- bubbaburp
- · Replies 3 ·
Why do the K-alpha x-rays have different wavelengths for different elements?
- Woopy
- · Replies 11 ·
How Do You Calculate the Center of Mass for a Cone?
- GreenPrint
- · Replies 4 ·
Grade 11 Heat Capacity question
- Confuzed_one
- · Replies 3 ·
Finding the Scattering Angle of a Photon
- binbagsss
- · Replies 3 ·
Momentum of Skiers in a Completely Inelastic Collision
- HarleyM
- · Replies 7 ·
Pendulum Problem: Calculate Initial Speed of Actor
- KCEWMG
- · Replies 2 ·
Moment of Inertia of a Square with Given Mass and Axis?
- GreenPrint
- · Replies 12 ·
1 kg of melting ice and 1 kg of boiling water are mixed
- luigihs
- · Replies 4 ·
Ball and Ramp. Kinetic Energy. Friction.Angular Momentum and Velocity.
- punyhuman92
- · Replies 2 ·
PV diagrams monatomic ideal gas
- lalahelp
- · Replies 1 ·
Specific Heat molten lead Question
- Wellesley
- · Replies 4 ·
10 kg body on rough surface with friction coefficient
- kranav
- · Replies 2 ·
Impulse, momentum and efficiency to find height formula
- Neutrinoftw
- · Replies 7 ·
How does the placement of a lens behind a slit affect the diffraction pattern?
- imagemania
- · Replies 1 ·
Block on Spring with Friction Problem
- weebedink
- · Replies 4 ·
Can i get help with my F=ma problems?
- mrphobio
- · Replies 59 ·
Finding the Velocity of a Frictionless Roller Coaster at the Top of a Loop
- Shahni
- · Replies 4 ·
What Visible Light Transitions Occur in the Bohr Model of Li++?
- ChiefKeeper92
- · Replies 3 ·
Finding velocity and acceleration of point C in a two-link mechanism
- nathan8
- · Replies 2 ·
Localizing an electron problem ()
- jakepeck
- · Replies 14 ·
What is the magnitude and angle of displacement given three vectors?
- laladude
- · Replies 7 ·
How Does Electron Kinetic Energy Compare to Hydrogen's Ground State?
- Woopy
- · Replies 2 ·
Use doppler shift to find star velocity
- Covenant32
- · Replies 3 ·
Physics, find the time it takes.
- laladude
- · Replies 1 ·
Single slit diffraction: irradiance ratio at 3/4 wavelength path difference
- Xyius
- · Replies 3 ·
Relationship between momentum and inertia
- samclocks
- · Replies 5 ·
How Does Tension at an Angle Affect Friction and Motion?
- giacomh
- · Replies 3 ·
Having trouble with this heat transfer problem
- xnitexlitex
- · Replies 2 ·
Newton's Laws: Finding Acceleration of a Crate on a Level Floor
- corong1997
- · Replies 5 ·
Determining direction of induced current
- Teachme
- · Replies 10 ·
Do Induced EMF Direction and Voltage Signs Contradict?
- jegues
- · Replies 17 ·
Charges of two capacitors in a circuit
- boomerang22
- · Replies 6 ·
Gravitational potential energy (roller coaster)
- MsHomework
- · Replies 12 ·
Question on pulleys and tension
- demv18
- · Replies 2 ·
How does dimensional analysis work in physics?
- Andy6
- · Replies 1 ·
Temperature change in Aluminium
- Shahni
- · Replies 1 ·
Solving Sliding Object Down Ramp: Horizontal Forces Only?
- ItsNoah
- · Replies 2 ·
Kinetic and Potential Energy on Ramps
- captdestiny
- · Replies 3 ·
Fluid Dynamics of saltwater in sealed tank
- QuarkCharmer
- · Replies 1 ·
Does halving force and doubling contact time increase impulse magnitude?
- Sugi San
- · Replies 1 ·
Parallel and perpendicular vectors with given magnitude
- demv18
- · Replies 1 ·
How Does an Air Bag Cause Deceleration During a Crash?
- hslove24
- · Replies 1 ·
Finding Initial Velocity for Projectile Launch at Angle Theta
- ChromoZoneX
- · Replies 26 ·
Why does the heavier spade have a lower acceleration in soil?
- vickster147
- · Replies 8 ·
How Do Wave Velocities and Frequencies Change in a Compound Wire System?
- gboff21
- · Replies 8 ·
Damped oscillator consecutive amplitude ratio
- Uniquebum
- · Replies 2 ·
Two connected springs and potential energy as a function of x and y
- Diff.Ed
- · Replies 1 ·
Calculating Time and Angle of Impact in Free Fall Physics Problem
- laladude
- · Replies 2 ·
Inclined plane with spring underneath.
- dttah
- · Replies 7 ·
Is the Current Zero When a Capacitor is Fully Charged?
- charlies1902
- · Replies 4 ·
What is the effect of a negative charge on the right hand rule?
- grscott_2000
- · Replies 5 ·
Force between 2 parallel plates
- khfrekek1992
- · Replies 5 ·
I insert in my calculator cos 50x60 = 42.42
- luigihs
- · Replies 6 ·
Calculating Heat Loss through 1m Glass Pane - 15oC Difference
- luigihs
- · Replies 2 ·
Flux at Earth's surface and Poynting vector
- Silversonic
- · Replies 2 ·
Rappelling climber: why use cos(10°) for rope tension torque
- PirateFan308
- · Replies 1 ·
How Long Does It Take a Train to Reach Twice Its Threshold Speed?
- bernvall
- · Replies 3 ·
What is Electrical energy measured in?
- Rychelle
- · Replies 1 ·