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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Electric Fields potential of zero
- nokia8650
- · Replies 8 ·
Light waves through grating. Min and Max measurements of wavelenghts in nm
- Mugen112
- · Replies 1 ·
Momentum/Elastic Potential Energy
- hellomister
- · Replies 2 ·
Work and energy and that sort of rot. :/
- DDRchick
- · Replies 2 ·
Verify Answer- Porsche Power Question
- bcjochim07
- · Replies 4 ·
Distance during acceleration: why do I get 23.02 m instead of 24 m?
- webslinger67
- · Replies 2 ·
Momentum of Bird on Swing after takeoff
- itsjustwhoiam
- · Replies 5 ·
2 Quck Questions on Work and Energy
- bigpapasmurf
- · Replies 3 ·
Conservation of energy and height of projectile
- numb401
- · Replies 4 ·
What am I doing wrong with the AMU conversion?
- Sunny1261
- · Replies 2 ·
Physics/Chem Gas, Pressure, Volume, Temperature Question
- BugsSport
- · Replies 3 ·
What is the Coefficient of Kinetic Friction for a Puck Sliding on Ice?
- c_mellis
- · Replies 2 ·
Potential Energy and Conservation of Energy Problems
- Matthew.C21
- · Replies 5 ·
How Do You Calculate the Amplitude of Forced Oscillation in SHM?
- ronny45
- · Replies 2 ·
Accceleration/Velocity questions
- ariol
- · Replies 1 ·
Projectile motion - velocity/time unknown
- zombiemegan22
- · Replies 1 ·
Average mass loss rate of a rocket engine during burnout
- nns91
- · Replies 1 ·
How Far Does a Greyhound Leap When Chasing a Hare?
- wallace13
- · Replies 1 ·
Calculate Tension in Transverse Wave on String: Linear Density 1.87x10-2kg/m
- wesochick6
- · Replies 5 ·
What is the largest wavelength for emission of electrons from a photosurface?
- prakriti
- · Replies 3 ·
Help with applied maths problems
- jackiemoon
- · Replies 1 ·
Why is the gradient constant in Figure 2?
- nokia8650
- · Replies 6 ·
How Fast Must a Person Run to Catch a Ball Dropped from a Building?
- wallace13
- · Replies 2 ·
Space shuttle Atlantis orbit question
- ahrog
- · Replies 4 ·
Air resistance on falling pine cone and pulley system speed
- physicznoob
- · Replies 4 ·
Resultant force in equilateral triangle
- en5980
- · Replies 2 ·
What are the operations on vector field A and how do I simplify the results?
- gcooke
- · Replies 2 ·
I from someone who has recently taken A-Level physics
- jenga42
- · Replies 1 ·
Asteroid Speed: Calculating with Kinetic Energy
- ahrog
- · Replies 1 ·
Kinematics 1 Dimension, Person Running Solve for Time
- marindo
- · Replies 1 ·
Total centripetal acceleration ringworld
- Maiia
- · Replies 1 ·
Gravitational acceleration/ centripetal
- Maiia
- · Replies 1 ·
Spring Energy-a block slides down a frictionless incline plane
- lu6cifer
- · Replies 1 ·
Finding resultant of 60N and 30N forces at various angles
- delfam
- · Replies 3 ·
Maximum EMF induced in a radio antenna loop
- sskakam
- · Replies 3 ·
Circluar Motion Involving Rotations Per Minute
- fishyfish
- · Replies 1 ·
How to Calculate the Speed of Water Exiting a Shower Head with 24 Holes?
- keemosabi
- · Replies 10 ·
Can Dropping Objects Increase Momentum?
- icedoverfire
- · Replies 5 ·
Impulse/Change in Momentum Problem
- diburning
- · Replies 2 ·
How Is the Average Pressure of Hailstones on a Window Calculated?
- xago
- · Replies 1 ·
How to Prove This Fourier Series Summation Equation?
- thelegend09
- · Replies 1 ·
Satellite Orbital Speed at 10% Gravity
- TonkaQD4
- · Replies 8 ·
Why Increasing Pully B's Diameter is Incorrect
- syang9
- · Replies 3 ·
Force on Rhonda's body from seat belt and windshield
- andthismeans
- · Replies 1 ·
Does work depend on the direction of displacement?
- yoleven
- · Replies 2 ·
Physical Proof that these movies obey Laws of Physics
- 613theprince
- · Replies 7 ·
Verifying that a critical damped oscillator approaches zero the fastest.
- Quantumpencil
- · Replies 1 ·
Resources for learning static electricity, Coulomb's law, and Gauss's law
- eng.crash
- · Replies 1 ·
Calculate the Moon's Synodic Period from a graph
- TFM
- · Replies 10 ·
Forced oscillation, Equation of Motion and verifying solutions
- sm1t
- · Replies 1 ·
Charge redistribution when capacitors in series reach equilibrium
- jakey
- · Replies 2 ·
Calculate Force Needed to Tip a Rectangular Prism
- flfgw
- · Replies 15 ·
Doppler Effect of a security alarm
- adashiu
- · Replies 1 ·
What Is the Force on a Crate When a Midpoint Rope Is Pulled?
- acsin92
- · Replies 2 ·
Right Hand Rule Associated Question
- Fizickstudent
- · Replies 1 ·
FB Diagram Problem: Is My Sketch Correct?
- chemic_23
- · Replies 5 ·
Momentum/Impulse [Final Velocity]
- silverduelist
- · Replies 1 ·
Difficult mechanics problem - is this even possible to solve?
- Anonymouse
- · Replies 7 ·
Calculation of Electric field Density(easy question, )
- wringer
- · Replies 6 ·
Water in the Bucket: Free Body Diagram? (Vertical Centripetal Force)
- sarvashreshth
- · Replies 2 ·
Doppler effect with electromagnetic wave radar gun
- adashiu
- · Replies 8 ·
Conservation of energy regarding electrons
- theowne
- · Replies 5 ·
Spring propels 2.0 kg block upward; find initial spring potential energy
- dken221
- · Replies 2 ·
Helping My Autistic Son with Momentum and Friction in a Dog's Movement
- Sgt
- · Replies 1 ·
Tension, work and final speed for a 220kg load lifted with acceleration 0.150g
- toasted
- · Replies 3 ·
Why is the Height of a Mass Launched by a Spring Dependent on its Mass?
- syang9
- · Replies 5 ·
What is the Half Value Thickness for Lead at 0.4 MeV and 1.59 cm^-1?
- foxandthehen
- · Replies 4 ·
Physics project: Self propelled car
- Arix
- · Replies 2 ·
How Do Mass and Speed Affect Kinetic Energy in Cars?
- me_and_you
- · Replies 1 ·
Gauss's Law 2 concentric cylinders in electrostatic equilibrium
- shale
- · Replies 3 ·
Screwed joint - free body diagram
- tihort
- · Replies 2 ·
Determine the value of pressure in pascals
- ch2kb0x
- · Replies 4 ·
Simple(ish) mechanics problem, conservation of energy
- grahammtb
- · Replies 2 ·
Electricity and magnetism - planar symmetry question: plastic sheets
- thehammer
- · Replies 1 ·
How Much of the Wooden Block Emerges When Floating in Water Compared to Alcohol?
- dude123
- · Replies 2 ·
Moving clocks and time dialation question
- phja
- · Replies 1 ·
What is the relationship between back EMF and rotor frequency in a motor?
- maccha
- · Replies 5 ·
What is the speed of a ball released at the bottom of a vertical circular path?
- alevis
- · Replies 1 ·
Does glass or rubber attract a negatively charged plastic comb?
- jwj11
- · Replies 3 ·
How to Determine the Coefficient of Friction for a Sliding Brick?
- dreamgirl
- · Replies 6 ·
Pressure in side a bag, that has been microwaved: Problem 12.19
- laxmanic33
- · Replies 2 ·
Angular Momentum: Work Done & Frequency Change
- Dell
- · Replies 5 ·
What average force was exerted on the player by the ball ?
- nns91
- · Replies 16 ·
Calculating Pressure in a Meteorological Balloon at -20.0C
- LFoschiatti
- · Replies 1 ·
Minimum Work Needed to Push 1000kg Car 300m Up 17.5o Incline
- Littlemin5
- · Replies 12 ·
Kinetic velocity independ. of direction?
- razored
- · Replies 6 ·
Height, Velocity, Angle, Gravity = Range
- Crookes
- · Replies 2 ·
Calculating the Period of Mars in Earth Years Using Gravitational Equations
- krimor09
- · Replies 12 ·
Sphere Rolling vs. Sliding Down a Ramp
- oranim2
- · Replies 4 ·
Beat frequency from radio waves with wavelengths 3.141m and 3.135m
- adashiu
- · Replies 5 ·
Moment of Inertia Ball and Stick Collision
- tachu101
- · Replies 5 ·
Lamp Brightness in Parallel Circuit
- calculator20
- · Replies 2 ·
What is the smallest vertical force which will move the crate
- Air
- · Replies 5 ·
Trying to Find Center of Gravity on Semi Truck (a real one)
- Saladsamurai
- · Replies 3 ·
A-level gas and thermal physics exam questions with multiple parts
- NeroBlade
- · Replies 1 ·
What are the Moments of Inertia for a Ball and Hoop on a Ramp?
- vector7
- · Replies 2 ·
Troubleshooting Centripetal Force Lab Calculations: What Went Wrong?
- Elbobo
- · Replies 3 ·
What is the electron concentration in a p-doped semiconductor?
- peanutbutter
- · Replies 2 ·
How accurately must you measure particle speed to distinguish a pion from a kaon at 2 GeV?
- DukeLuke
- · Replies 6 ·