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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Projectile Motion - Solving for initial velocity w/o time
- Sungura
- · Replies 5 ·
What is the acceleration of the crate?
- Sylvia
- · Replies 12 ·
What Happens to Velocities in a Head-On Collision?
- gcombina
- · Replies 9 ·
Finding force and equation of motion
- Jared Hill
- · Replies 5 ·
What are the conditions for a bench on an inclined plane to slide or tip?
- paalfis
- · Replies 4 ·
Does this paragraph about a falling cup make sense?
- TheExibo
- · Replies 3 ·
Proving Velocity Vector Magnitude Equals c
- Pual Black
- · Replies 2 ·
Hoop rolling on cylinder without slipping
- cacofolius
- · Replies 4 ·
Why Is the Coefficient of Restitution Less Than 1 in a Tennis Racket Collision?
- charlie1990
- · Replies 3 ·
What is the correct way to analyze a circuit with resistors?
- CylonBaby
- · Replies 8 ·
Bullet passing through a block using energy and momentum
- Shaun97
- · Replies 5 ·
Work Done by Isothermal Expansion
- Calu
- · Replies 11 ·
Temperature rise in concert hall from body heat over 2 hours
- R2D2
- · Replies 7 ·
How Do I Correctly Determine Angular Velocity?
- Kirushanthy
- · Replies 8 ·
How Does Physics Influence Bitcoin and Cryptocurrency Dynamics?
- TheFalseHuman
- · Replies 6 ·
How Is the Sellmeier Equation Derived from Complex Dielectric Constants?
- lillemy
- · Replies 3 ·
Dimensional Analysis: Matrix Setup for M/(L^2T^2)
- princejan7
- · Replies 3 ·
Trajectory (Quick Question) -- where would it be maximum speed?
- oldspice1212
- · Replies 4 ·
Ladder against wall with friction on both surfaces
- GermaniumGerbil
- · Replies 13 ·
How do periods and masses relate in oscillating springs?
- littlejon
- · Replies 5 ·
What is the acceleration of the particle
- ubergewehr273
- · Replies 9 ·
Why does moist air move off the saturation curve when cooled at constant pressure?
- princejan7
- · Replies 1 ·
Show that the function satisfies the Schrodinger eqaution
- pondzo
- · Replies 5 ·
Calculating Speed in Circular Motion: A Roller Coaster Conundrum
- fightboy
- · Replies 2 ·
Solving Electric Field of an Insulating Slab
- little neutrino
- · Replies 6 ·
Frequency of Oscillation, with mass and k value given
- LaLaLina
- · Replies 5 ·
How Do You Calculate the Time Derivative of a Non-Constant Vector?
- Bruneleski
- · Replies 6 ·
What Happens When the Tension in a Musical Instrument String is Doubled?
- Sky07
- · Replies 1 ·
Time to Reach Highest Speed of Simple Pendulum
- zippeh
- · Replies 1 ·
Angular Acceleration of a Wheel on a Turntable
- bsvh
- · Replies 2 ·
Spherical bubble rises to surface, Ideal Gas, Thermal Energy
- MaryCate22
- · Replies 5 ·
Help with biomechanics homework on mechanical energy and joint moments
- Hakan Can
- · Replies 3 ·
A position versus time graph involving the unit circle
- littlejon
- · Replies 6 ·
Why don't Current and Voltage increase (series/parallel)
- Prof. 27
- · Replies 6 ·
Why is normal force greater than weight on a banked curve?
- FlyDoc
- · Replies 1 ·
Block in vertical circular motion with constant speed
- Mickey Tee
- · Replies 8 ·
Why is the work done on a gas zero if it doesn't move?
- littlejon
- · Replies 5 ·
Why do component vectors not work ?
- Newton22
- · Replies 7 ·
Projectile Motion of a Football Problem
- Esau Garcia
- · Replies 2 ·
Conservation of Momentum - BOMB EXPLOSION question
- gcombina
- · Replies 8 ·
Euler's method for a mass sliding down a frictionless curve
- murrskeez
- · Replies 8 ·
Conservation of Energy falling rod
- dmoney123
- · Replies 1 ·
Block on moving wedge (Maximum force for equilibrium problem
- Omar Wali
- · Replies 2 ·
Mass Needed to Accelerate a Box Along a Pulley
- NamikazeBurst
- · Replies 6 ·
Temperature change with gasses.
- littlejon
- · Replies 4 ·
Intro to elementary particles, electron - nucleus collision
- Coffee_
- · Replies 11 ·
Just starting with friction, question
- CollegeStudent
- · Replies 3 ·
Two identical cylinders different gasses
- littlejon
- · Replies 5 ·
Electromagnetic Induction and a coil of wire
- calculator20
- · Replies 2 ·
Magnitude of electric charge on a glass rod
- barryj
- · Replies 3 ·
Why does an oscillating graph decrease over time?
- littlejon
- · Replies 6 ·
Confusion with non-head-on elastic collisions
- Jazz
- · Replies 4 ·
Relativistic Uniform Accelerated Motion
- VVS
- · Replies 1 ·
Angular Momentum vs Linear Momentum
- Maged Saeed
- · Replies 2 ·
Work required to move a mass away from two others
- BOAS
- · Replies 3 ·
Capacitor: charge and energy calculations
- hibphys
- · Replies 3 ·
What Are the Best Low-Budget Materials for High and Low Friction on Ramps?
- AwsmAssassin
- · Replies 6 ·
How Do You Calculate the Half-Life of Thorium-232?
- sam400
- · Replies 9 ·
Momentum and Impulse questions
- sugz
- · Replies 1 ·
Minimum Height Needed for Bungee Jump Problem
- harihrn
- · Replies 5 ·
What is the distance at which an antenna can receive signal?
- Shostakovich
- · Replies 15 ·
Product of inertia for beam cross-section with a=120mm, b=290mm, d=30mm, h=390mm
- Bluestribute
- · Replies 20 ·
Commuting quantum mechanical operators
- physiks
- · Replies 7 ·
What is the pressure force on the gate at point A?
- Bluestribute
- · Replies 9 ·
Angular momentum, block plus bullet
- timnswede
- · Replies 4 ·
Two balls, of masses mA=45g and mB=65g, are suspended
- josephyarwick
- · Replies 4 ·
How Massive Must an Asteroid Be to Extend Earth's Day by 28%?
- BOAS
- · Replies 37 ·
Second order relation of entropy
- thonwer
- · Replies 1 ·
Force between masses in a spring-mass chain with a traveling wave
- diracdelta
- · Replies 2 ·
Basic Decay Equations possible? - Parity, symmetry concepts
- binbagsss
- · Replies 1 ·
Determining the mass of a beam and using percent uncertainty
- Domcrist22
- · Replies 1 ·
Magnetism: Forces between two parallel wires
- mikil100
- · Replies 3 ·
Calculating Time for a Swimmer to Cross a River Using Pythagorean Theorem
- Nicole924
- · Replies 6 ·
D’Alembert’s principle and conservation of energy principles
- lozoot96
- · Replies 1 ·
Nonlinear System Homework: Potential Energy & Stability of Fixed Points
- NATURE.M
- · Replies 2 ·
How Does Hovercraft Speed Affect Race Time on a Bowl-Shaped Track?
- geoffrey159
- · Replies 11 ·
How to Determine the Speed of Light Using Planck's Constant?
- Rishav sapahi
- · Replies 5 ·
Coating thickness for reflection maximum at 400 and 600 nm
- meaowwuff
- · Replies 3 ·
Isothermal Expansion of a Diatomic Gas
- MaryCate22
- · Replies 5 ·
What is the concept behind sound waves in my class notes?
- fruitbubbles
- · Replies 8 ·
Bungee Jumping Energy (with drag)
- akgtdoskce
- · Replies 28 ·
Linear Mass Density - Bars (Center of Mass)
- azukibean
- · Replies 2 ·
Vertical spring oscillation with disc and block system
- Aristotle
- · Replies 9 ·
Heat Capacity and Thermal Equilibrium
- MaryCate22
- · Replies 3 ·
Satellite Energy and Orbit problem
- Dextrine
- · Replies 7 ·
Torque v. Time Graph -- Find angular velocity
- adriannesmith
- · Replies 4 ·
Introduction to energy problem - did I do this right?
- JSmithDawg
- · Replies 2 ·
Investigation into the behavior of microwaves
- 3432401GSPT
- · Replies 1 ·
Thermodynamics: Stiff and isolated container
- Karol
- · Replies 4 ·
Asteroid Collision: Calculating Impact Speed
- Willis2833
- · Replies 2 ·
A question related to Center of Mass and Linear Momentum
- Adir_Sh
- · Replies 17 ·
Kleppner and Kolenkow (block sliding in a ring)
- geoffrey159
- · Replies 6 ·
Can I figure out the force exerted on an object if i know
- grandpa2390
- · Replies 6 ·
Is the velocity in kinetic energy = 1/2 mv² average or final velocity?
- max1995
- · Replies 1 ·
Maximum vibration speed of a traveling wave
- Jadon
- · Replies 23 ·
Finding final temperature and pressure when two gases mix in an isolated vessel
- Karol
- · Replies 5 ·
Required tangential force to move spool
- Dan Aiken
- · Replies 1 ·
Doppler effect w/ percentage frequency shift?
- grantaere
- · Replies 1 ·
Magnetic flux linkage and area as a vector
- Jimmy Jazz
- · Replies 1 ·