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 to add 3 vectors of different directions together?
- CONBOSS
- · Replies 1 ·
Effect of Doping Levels on Width of Depletion Region
- kihr
- · Replies 4 ·
Square toriods vs. circula toroids
- blindnz
- · Replies 3 ·
Calculating Engine Power Output for 4000kg Car
- AllenHe
- · Replies 4 ·
Capacitors - what does same potential mean?
- logearav
- · Replies 1 ·
What Is Interface Temperature in Thermodynamics?
- genericusrnme
- · Replies 3 ·
How Long Does It Take for Two Cars to Meet in a Kinematic Problem?
- rachael123456
- · Replies 2 ·
What is the coefficient of static friction in this block and string setup?
- jjesiee
- · Replies 4 ·
Easy angular velocity question
- renob
- · Replies 1 ·
Finding Velocity Components of a Car Moving at 10.0 km/h, 35° North of East
- neyneyz
- · Replies 1 ·
Kinetic Energy Poll Ball Question
- lilbunnyf
- · Replies 11 ·
Find the power required to pull loop through constant magnetic field
- Covenant32
- · Replies 6 ·
Age of spaceship passenger traveling to Altair at 0.95c
- natxio
- · Replies 5 ·
Energy in spring (slingshot problems)
- vishavs
- · Replies 4 ·
Newton second law involving a gallon of water
- kadoma
- · Replies 14 ·
I don't understand Archimedes principle
- lionely
- · Replies 3 ·
Aether wind vs Einsteins 2nd postulate
- jakepeck
- · Replies 4 ·
How Fast Must a Baseball Travel to Clear a 29m Obstacle?
- MissJewels
- · Replies 3 ·
How Do You Calculate Initial Velocity in Projectile Motion?
- killjoy2019
- · Replies 3 ·
Water, Ice, Steam Mixture - Final Temperature
- mrjester1989
- · Replies 1 ·
What is the Conservation of Energy Principle in Bungee Jumping?
- jasonbans
- · Replies 6 ·
Spring on incline with static equlibrium, disposition unkown. .
- grtdane17
- · Replies 8 ·
Why is Hubble's Constant Measurement Different Today?
- s3a
- · Replies 4 ·
Find the potential gravitational and kinetic energy of a ball after 0.4 seconds
- Darth Poison
- · Replies 2 ·
Fluids, pressure on a wall to determine max depth
- carhartt
- · Replies 9 ·
Car curves at a radius of 50m while travelling at 100km/hr
- MissJewels
- · Replies 6 ·
Gravitational Force between two equal masses
- physgrl
- · Replies 2 ·
Determining latent heat of fusion of ice
- savva
- · Replies 10 ·
Calculating the fundamental frequency of a travelling wave
- savva
- · Replies 2 ·
Gyroscopes and the torque required for precession
- physicsguy128
- · Replies 3 ·
Rotational Mechanics Problem (Rotating solid wooden disk)
- savva
- · Replies 4 ·
A pig hanging from a string going in a circle.
- tharock220
- · Replies 2 ·
Special relativity homework question time dilation
- natxio
- · Replies 2 ·
Finding Torque on current loop.
- Covenant32
- · Replies 3 ·
Conservation of Momentum, dropped vase
- clemsonguy
- · Replies 6 ·
Three part weightlifter question
- physicsgurl12
- · Replies 2 ·
Real Life Problem I Need Help With
- GatorFlyTest
- · Replies 3 ·
How Does Friction Affect Work Done on a Crate and Train?
- yttuncel
- · Replies 5 ·
Optics: images of object in half a spherical mirror
- Anoonumos
- · Replies 6 ·
Expansion of a gas in Airbag System.
- Nahuel_FF
- · Replies 1 ·
Find the magnitude of the magnetic field 10 cm from the wire
- Covenant32
- · Replies 4 ·
Finding Tension is three cables attached to a particular mass?
- savva
- · Replies 5 ·
A conceptual question regarding collision/conservation of energy.
- lillybeans
- · Replies 3 ·
Mechanics of Materials basic exercise
- Femme_physics
- · Replies 45 ·
Friction compared to applied force
- Shanetm
- · Replies 1 ·
Atomic Physics - Radioactive Decay and Stability
- Peter G.
- · Replies 5 ·
Buoyant Pressure problem number 7
- ChunkymonkeyI
- · Replies 1 ·
Vertical Component of this Picture?
- Imminent Fate
- · Replies 1 ·
Did I Solve the Inelastic Collision Pendulum Problem Correctly?
- ss85
- · Replies 1 ·
What is the G Force on an Astronaut in a Rocket Accelerating at 26.95m/s/s?
- DumbFounDed
- · Replies 1 ·
What is the acceleration and average speed of a car in circular motion?
- zebragiraffe
- · Replies 1 ·
How much energy is required to move this satellite to a circular orbit
- macy192
- · Replies 1 ·
What Is the Magnitude of the Particle's Angular Momentum?
- mrshappy0
- · Replies 7 ·
Polar Integration Domain part 3
- DrunkApple
- · Replies 1 ·
2 cylinders, pushing gas from one to another
- unscientific
- · Replies 4 ·
How Much Force to Keep Foam Underwater?
- ChunkymonkeyI
- · Replies 11 ·
Conservation of Momentum in Collision of Balls: Solving for Unknowns
- unscientific
- · Replies 5 ·
Pressure and Buoyant Force problem
- ChunkymonkeyI
- · Replies 9 ·
Help with Next Exam: Forces, Kinetic Energy & More
- pantrwrstl
- · Replies 1 ·
Carnot Cycle: Reversibility Under Constant External Pressure
- asap9993
- · Replies 1 ·
Find position when a particle comes to rest from a potential energy function
- erin7749
- · Replies 1 ·
Torque direction for any system of particles
- frozendemon
- · Replies 3 ·
Electronics true or false questions
- Femme_physics
- · Replies 4 ·
2 Dimensional Collision Problem
- almatari
- · Replies 5 ·
Force Exerted by a Wedge Supporting a Sphere
- nautola
- · Replies 7 ·
Pressure, Buoyant Force problem
- ChunkymonkeyI
- · Replies 4 ·
Maximum force to not rotate a cylinder
- nautola
- · Replies 3 ·
What is the point of having different engine cycles?
- JustinLiang
- · Replies 1 ·
Finding the Cross Product for Angular Momentum
- mrshappy0
- · Replies 2 ·
W 30° N: Interpreting the Directional Coordinate
- GingerKhan
- · Replies 2 ·
Translational kinetic energy vs. rotational kinetic energy
- mm2424
- · Replies 1 ·
Torque on a suspended uniform bar
- nautola
- · Replies 4 ·
Manometer U Tube Homework: Solving Pressure in B
- tsslaporte
- · Replies 1 ·
Calculating Gravity: Determine G from Acceleration
- Miike012
- · Replies 2 ·
Solve Linear Momentum Homework on Pendulum & Incline
- louie3006
- · Replies 9 ·
Collision/conservation of linear momentum
- jnmoyer
- · Replies 8 ·
Equilibrium of a Rigid Body, a boom of a crane
- valeriex0x
- · Replies 1 ·
How Is Angular Speed Calculated After Clay Impacts a Wheel?
- mrshappy0
- · Replies 8 ·
How Does Changing Earth's Mass and Size Affect Its Rotation Period?
- mrshappy0
- · Replies 3 ·
Elastic Potential Energy Problem
- phizics09
- · Replies 1 ·
Understand some quantum numbers in a problem
- fluidistic
- · Replies 7 ·
Pressure, Buoyant Force problem 8
- ChunkymonkeyI
- · Replies 4 ·
Variable Resistance across a Bulb
- Marshillboy
- · Replies 3 ·
Tricky density and bouyancy question
- jlin94
- · Replies 3 ·
Gravitational force general question
- Miike012
- · Replies 3 ·
What is the Resistance of a 1 km Composite Copper-Steel Wire?
- SeannyBoi71
- · Replies 5 ·
Calculate Current Through Resistor - Kirchhoff's Rules
- crimsonn
- · Replies 3 ·
Help with buoyancy question thanks
- jlin94
- · Replies 1 ·
Momentum/Collision Special Relativity Problem
- BetaDecay57
- · Replies 1 ·
Pivot point of a beam and torque
- danl2011
- · Replies 11 ·
Calculating the Impulse (Magnitude and direction) question - Thanks
- nukeman
- · Replies 4 ·
Finding normal force acting on an object (Fn)?
- shamma
- · Replies 1 ·
Rigid Body Reel and hanging mass.
- JJRKnights
- · Replies 1 ·
Displacement of zigzaging dust particle
- Pseudopro
- · Replies 11 ·
How Is the Coefficient of Friction Calculated for an Amusement Park Ride?
- chicagobears
- · Replies 3 ·
Understanding the Total Energy After Particle Collision
- charged-ant
- · Replies 1 ·
How Do You Calculate Tension in Different Configurations of Supporting Strings?
- ggmissmolly
- · Replies 3 ·
Coefficient of Kinetic Friction
- lahle1
- · Replies 1 ·
Two Skaters Collide (inelastic collision)
- ArielleDubois
- · Replies 3 ·
Unravelling Kepler's Law: How F = m/r^2 is Reached
- Miike012
- · Replies 3 ·