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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Angle of Inclination of a Water Surface
- Alettix
- · Replies 19 ·
How to calculate counterweight at a different height?
- physicsodyssey
- · Replies 6 ·
Wave speed dependent on medium not source?
- Essence
- · Replies 10 ·
Magnitude of velocity and impulse
- Westin
- · Replies 5 ·
What constant force does the floor exert
- HJ^2
- · Replies 41 ·
I with rotational kinetic energy problems
- kenny243
- · Replies 1 ·
Finding potential difference in a very long hollow cylinder
- aldofbg
- · Replies 1 ·
Electrostatic field at the square center
- tom75
- · Replies 3 ·
Change in Entropy, double integral?
- AKJ1
- · Replies 9 ·
Simple Harmonic Motion Question?
- kate Co
- · Replies 8 ·
Kinematics position function question
- CuelloFactor
- · Replies 1 ·
Calculate the required relative permeability of magnetic mat
- D.B0004
- · Replies 1 ·
A flat ring is uniformly charged
- hitemup
- · Replies 3 ·
Why Is the Area Between Non-Hookean Material Graphs the Energy Lost?
- Abobaker Ugool
- · Replies 1 ·
Need help analyzing an RC circuit
- fruitbubbles
- · Replies 15 ·
How to number nodal and anti nodal lines
- julianwitkowski
- · Replies 12 ·
Coefficient of kinetic friction for 10 kg box on 10° slope
- physlexic
- · Replies 3 ·
How Does Reversing Current Affect Magnetic Field Directions?
- psyclone
- · Replies 7 ·
Calculating horizontal acceleration?
- physlexic
- · Replies 8 ·
Moment of Inertia about an axis at the center of mass
- JesseJC
- · Replies 10 ·
Please hel with Mastering Physics, very lost in magnetism
- rk2930
- · Replies 1 ·
Solving Turntable Coin Problem: Angular & Linear Accelerations
- Nick11111
- · Replies 1 ·
Particle Mechanics exercises. Please help.
- hyorin.choi
- · Replies 1 ·
Don't know how if the rule meter will be titled or not
- Syndy
- · Replies 5 ·
Calculating the Speed of Waves in a Vibrating String and Resonant Pipe
- JSmithDawg
- · Replies 1 ·
Maximum Speed on a Banked Curve with Friction
- Jacky Lee
- · Replies 19 ·
What is mass of particle X before the decay?
- Westin
- · Replies 1 ·
Gauss's law: Why does q=0 if E is uniform?
- Lola Luck
- · Replies 8 ·
Questions about the error in the slope of a graph
- toothpaste666
- · Replies 8 ·
Find frequency of electromagnetic waves
- xamy
- · Replies 9 ·
Introduction to Electrostatics -- Positive charges at the corners of a triangle
- molakko
- · Replies 9 ·
Solid hemisphere resting on an inclined plane
- Jamessamuel
- · Replies 2 ·
Find the capacitance from 2 energies stored, not knowing voltage
- Steven Thomas
- · Replies 6 ·
How to Solve Moment of Inertia for a Cylinder with Varying Radii?
- BernieCooke
- · Replies 4 ·
Closest celestial object that has bound synchronous rotation
- Guarana
- · Replies 1 ·
How to Prove (∂U/∂V)P = TCV/V for a Perfect Gas?
- fgr
- · Replies 4 ·
Calculat the negative acceleration on a vehicle during skid.
- NeedHelpBro
- · Replies 2 ·
Is the Work Done by the Piston on the Gas Counted Twice in PV Diagrams?
- BOAS
- · Replies 5 ·
Problem with wave optics - diffraction grating?
- winsticknova
- · Replies 5 ·
Conservation of Momentum or Energy in a collision?
- Striders
- · Replies 6 ·
Photon energy of a certain material?
- physicslove22
- · Replies 19 ·
Is this Free-Body Diagram Correct?
- DevonR
- · Replies 7 ·
Finding force from position equation
- omega5
- · Replies 4 ·
Alpha particle in gold foil scatering experiment
- asadpasat
- · Replies 1 ·
Finding Angular Velocity of Bicyclist in Inward Circle
- Jzhang27143
- · Replies 3 ·
Why Must the Normal Force Equal Zero at the Top of a Loop?
- Brett R.
- · Replies 1 ·
Gauss' Law & SHM Homework: Proving Simple Harmonic Motion
- Omar Wali
- · Replies 20 ·
Center of Mass for a Bowling Ball
- Yoni V
- · Replies 1 ·
Tension of string joining two crossed sticks
- Seaborgium
- · Replies 25 ·
Minimum Speed for Motorcyclist to Successfully Cross a Ravine
- ladymiresa
- · Replies 6 ·
Calculating Work and Kinetic Energy in a Cart Experiment
- sallychan
- · Replies 11 ·
Tension problem calculate theta
- Ciaran
- · Replies 4 ·
Will 2 particles with paths crossed collide?
- jefer
- · Replies 5 ·
How Do You Calculate Kinetic Energy in Relativistic Collisions?
- 1bigman
- · Replies 2 ·
Relativistic doppler effect for light
- Samuelriesterer
- · Replies 2 ·
Astronaut floats outside spacecraft
- HJ^2
- · Replies 38 ·
Finding initial velocity of a projectile
- cresta123
- · Replies 1 ·
Solving Projectile Motion Problems: Intersecting Balls at Different Heights
- Max0007
- · Replies 5 ·
Need help with centripetal force problem.
- Ishaan S
- · Replies 14 ·
Low Jerk Elevator Ride: max speed & acceleration
- PFuser1232
- · Replies 15 ·
How Is Work Calculated for a Satellite Entering Orbit?
- henry3369
- · Replies 12 ·
How Much Cold Water Is Needed to Adjust Bath Temperature?
- Madeline1844
- · Replies 1 ·
Air Pressure Reduction as a Function of Height Above Sea Level
- Incand
- · Replies 4 ·
Why is Root-2 in the Denominator of the Homework Solution?
- sugz
- · Replies 4 ·
How to Calculate Wavelength in a Two-Dimensional Wave Interference Pattern
- julianwitkowski
- · Replies 11 ·
Does Earth's Inward Electric Field Result in Outward Electric Flux?
- hitemup
- · Replies 5 ·
How Is the Refractive Index Calculated from Apparent and Real Depths?
- SammyD97
- · Replies 1 ·
Equations of motion for a rotational system
- theone
- · Replies 1 ·
Gravitational Field Intensity HW
- jennyy_101
- · Replies 1 ·
Change in total energy of capacitance
- roxanne.w
- · Replies 2 ·
Comparing the current through multiple batteries
- acdurbin953
- · Replies 17 ·
Max Work From Heat Engine Reservoirs
- SevenTacos
- · Replies 11 ·
Determine building height by viewing angles
- lamamw
- · Replies 4 ·
Ammeter from parallel to series, current change
- Faris A
- · Replies 2 ·
British Physics Olympiad 2004 (GCSE)
- LostAce
- · Replies 8 ·
Electric potential of hollow conducting sphere
- Gagandeep Singh
- · Replies 3 ·
Prove that a sphere is a conductor.
- roxanne.w
- · Replies 3 ·
Centripetal Force, and Car Drifting Question
- SherlockIsReal
- · Replies 6 ·
Help Solve Physics Homework: Computer Base Unit of Mass
- SherlockIsReal
- · Replies 5 ·
Two masses hanging from a pulley (conservation of energy)
- khannon5
- · Replies 12 ·
Does a Satellite Have Weight in Orbit?
- Physics wouter
- · Replies 7 ·
How much energy is used in heating water?
- paulfitz1592
- · Replies 22 ·
Calculate velocity at a certain time in an acceleration.
- Viktor Haugland
- · Replies 1 ·
Parameters for a four bar mechanism
- theone
- · Replies 1 ·
Calculating the Ratio of d/r for an Object Above a Planet Surface
- goonking
- · Replies 5 ·
Determining Planck's Constant With Photoelectric Effect
- MASmith
- · Replies 7 ·
Torque of a rotating disc with string
- pengy14
- · Replies 11 ·
What are the Wavelengths and Amplitude of these particles?
- Spock
- · Replies 1 ·
What times it takes for the ball to drop?
- Serious Max
- · Replies 3 ·
Static Friction of sliding box on plane
- goonking
- · Replies 4 ·
Static friction and acceleration
- goonking
- · Replies 10 ·
Circular Motion. Roller-coaster mass of car and max speed
- AStupidHippo
- · Replies 7 ·
How Far is the Second Spring Compressed When the Mass Comes to Rest?
- governergrimm
- · Replies 1 ·
How to calculate this angular velocity problem
- karzy
- · Replies 5 ·
Wire going through a magnetic field
- timnswede
- · Replies 7 ·
Prove This, please -- particle moving with a uniform acceleration
- VeeFlamesPhys
- · Replies 10 ·
Flux Through a Non-Concentric Sphere
- mmdts
- · Replies 4 ·
Particle Motion in Homogenous Gravitational and Electrical Fields
- Kostas Tzim
- · Replies 13 ·
Calculating Terminal Speed of a 82kg Skydiver using Basic Physics Formulas
- Steelers72
- · Replies 4 ·
Unclear geometry in optics problem
- ggb123
- · Replies 1 ·