Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
What is the Magnitude of Betty's Force for Equilibrium?
- J-dizzal
- · Replies 4 ·
What is the Average Speed and Acceleration of a Car on a Straight Road?
- Tonia
- · Replies 45 ·
Coulomb triple integral for a sphere
- Luke Bower
- · Replies 11 ·
If a chicken & rooster are fighting over a spaghetti string
- Ocata
- · Replies 9 ·
Calculate the force of ball on an incline leaning on a wall
- Amit86
- · Replies 14 ·
Approaching a Cops and Robbers Chase Problem Using Equations of Motion
- Deep Dhillon
- · Replies 2 ·
What is the tension in the string?
- middleearthss
- · Replies 25 ·
Frequency of Oscillation: Two Springs Connected to a Mass m | Homework Help
- toesockshoe
- · Replies 4 ·
Investigate one factor that affects the angle of refraction
- Azzzy
- · Replies 1 ·
How far does it take for an object to reach maximum velocity
- Tonia
- · Replies 7 ·
Potential Energy and Velocity of a Spaceship
- Drakkith
- · Replies 2 ·
How much work is required to stop an electron
- rperez1
- · Replies 5 ·
Calculation of equivalent resistance
- Arka420
- · Replies 5 ·
A curve of radius 76 m is banked for a design speed of 100 km/h
- rperez1
- · Replies 3 ·
Velocity of current-carrying cylinder
- steve B. 98
- · Replies 3 ·
Voltage Equation Homework: KCL & KVL Solutions
- universitypq98
- · Replies 1 ·
Check my answer for power output question
- MaryBarnes
- · Replies 9 ·
What is the work-energy theorem for a block sliding on a frictionless incline?
- Drakkith
- · Replies 6 ·
Solving Horizontal Tension: Step-by-Step Guide
- fldk31
- · Replies 7 ·
Particle Uniform circular motion problem
- J-dizzal
- · Replies 4 ·
How to solve the Momentum of a baseball?
- mgomez
- · Replies 1 ·
Tension and Uniform Circular Motion (no r, ω, θ)
- tmanderson
- · Replies 7 ·
Crane pivot force calculation help
- MironeDagains
- · Replies 28 ·
Archimede's Principle and Work due to buoyant force
- Blooch
- · Replies 1 ·
Calculating Spring Constant for a Mass-Spring System: Technician's Experiment
- fldk31
- · Replies 1 ·
Moments caused by centripetal force?
- TomW17
- · Replies 1 ·
Determine your ave. speed and ave. velocity
- Tonia
- · Replies 13 ·
You are traveling on a straight road with constant velocity
- Tonia
- · Replies 9 ·
Why Is Isothermal Expansion Answer D in Homework Problems?
- Arun Raja
- · Replies 3 ·
Rotational ACC and Gravitational ACC
- DameLight
- · Replies 7 ·
Where Did I Go Wrong? Solving a Block and Pulley Problem with Friction
- Lord Anoobis
- · Replies 6 ·
Optimizing Velocity on Incline for Vertical Rain Perception
- takando12
- · Replies 5 ·
What Calculations Determine the Length of the Rope and Mass of the Pendulum?
- Drakkith
- · Replies 15 ·
Friction in a 3 block and pulley system
- Maximusw47
- · Replies 4 ·
Friction - 3 Blocks and a Pulley
- FredericChopin
- · Replies 3 ·
How Do You Calculate Vector Magnitudes and Directions from Given Angles?
- mahadasgar
- · Replies 5 ·
Free body diagram for all forces
- monsteruf
- · Replies 3 ·
Marching Band doppler effect with Beat Frequency.
- Ethan_Tab
- · Replies 2 ·
Projectile motion (ground to ground)
- J-dizzal
- · Replies 3 ·
Mass of substance in a system (Heat transfer)
- Zoey Brown
- · Replies 2 ·
Show that Newton's 2nd Law is Not valid in accelerating reference frame
- Tonia
- · Replies 3 ·
How Does Uranium Decay Impact the Temperature of Surrounding Lead?
- Zoey Brown
- · Replies 1 ·
Why does a constant force result in 0 torque in Barlow's wheel experiment?
- NooDota
- · Replies 7 ·
Radioactive Isotopes and half life
- Zoey Brown
- · Replies 1 ·
What Are the Thermodynamic Processes Involved in This Gas Cycle?
- Jack Easton
- · Replies 2 ·
Building a Model Car: Maximizing Efficiency with Newton's Law
- XJL488Hax
- · Replies 9 ·
Solve Pulley Problem: Frustrated After Weeks of Trying
- FredericChopin
- · Replies 4 ·
Physics Working Model Ideas please
- Mr.maniac
- · Replies 7 ·
What Is the Maximum Amplitude of Oscillation to Prevent Slipping?
- toesockshoe
- · Replies 7 ·
Help with gravitational problem
- toesockshoe
- · Replies 11 ·
Calculating the Angular Inertia of a Disk without Calculus
- 24forChromium
- · Replies 13 ·
Increasing the speed of Barlow's wheel
- NooDota
- · Replies 4 ·
How Much Power Does a Pump Need to Move Water Adiabatically?
- Jack Easton
- · Replies 3 ·
Conservation of Momentum of astronaut leaving ship
- TyroneTheDino
- · Replies 3 ·
Acceleration of system, connected to a rotational body
- jason lee
- · Replies 4 ·
Projectile Motion: Where Did I Go Wrong?
- PhysicallyAbel
- · Replies 14 ·
Charged Particle in Space: External Forces and Constant Velocity
- Fluxxx
- · Replies 8 ·
Can an Insect's Constant Speed Enable It to Reach the Top of a Pivoting Disk?
- Zero Divisor
- · Replies 11 ·
Unwinding Hoop: what holds it up?
- omega5
- · Replies 7 ·
Quantum physics experiments for EEI
- Nick reznov
- · Replies 2 ·
[attempt?] car accident problem.
- bby__hae!
- · Replies 1 ·
Fick's First Law (Diffusion Problem)
- goncalo x. r.
- · Replies 4 ·
What Must Be the Length of the New Runway?
- KEVIN Phlem
- · Replies 1 ·
What Is the Physical Interpretation of Prandtl Number in Heat Transfer?
- Sahil Dev
- · Replies 1 ·
How Is Newton's Law of Cooling Derived?
- Junior Newton
- · Replies 1 ·
Lift relative velocity question.
- takando12
- · Replies 2 ·
Newton's third law is not correct
- juviena
- · Replies 2 ·
Acceleration Vector and Motion of Particle
- RyanH42
- · Replies 17 ·
How to calculate open rotor voltage?
- theone
- · Replies 2 ·
Kinetic energy -- plot molecule frequency vs temperature
- Niki
- · Replies 3 ·
SHM and Conservation of Energy/Momentum
- badatphysics2
- · Replies 1 ·
What is the velocity of particle x with reference to Y?
- Alpha123
- · Replies 4 ·
Solving Fluid Flow in Pipe: Mass Rate 4Kg/s, P1 700Pa, P2 600Pa
- Classic49
- · Replies 4 ·
Distance to the nearest node along the back wall
- lodestar
- · Replies 7 ·
What kind of fringe is seen at the left edges of the slides?
- rockerdude1210
- · Replies 10 ·
SHM with mass of spring included
- Alettix
- · Replies 4 ·
No problem! Good luck with your homework.
- RyanH42
- · Replies 5 ·
Show that Newton's Second Law is valid?
- Tonia
- · Replies 5 ·
Is vA Greater Than, Equal to, or Less Than vC After the Collisions?
- rockerdude1210
- · Replies 2 ·
Icy slope, toboggan, find coefficient of friction
- marsten
- · Replies 19 ·
Impact force on a falling object that spreads
- MelanieBrett
- · Replies 1 ·
I've forgotten the formula for distance thrown
- Tybras
- · Replies 5 ·
Free fall question, 2 objects meet
- Radic S
- · Replies 9 ·
Electric Field due to Shell Hemisphere
- Jazz
- · Replies 5 ·
Calculating Pressure Difference w/ Bernoulli Law for Bay Inlet
- adoprea
- · Replies 2 ·
One-Dimensional Motion with Constant Acceleration
- PhysicallyAbel
- · Replies 3 ·
Net angular acceleration of a two wheel system
- kostoglotov
- · Replies 12 ·
Calculate 8000 Megajoules of Water Tunnel Kinetic Energy
- AslamRandhawa
- · Replies 1 ·
Angle of Impact: Calculating with Velocity & Distance
- TheTopGun
- · Replies 2 ·
Ball Rotation on a Ball: Solving for Center of Mass Velocity
- Karol
- · Replies 34 ·
What are the ##\vec{u}_r## and ##\vec{u}_θ## vectors?
- RyanH42
- · Replies 8 ·
Why is the work done by tension on M1 half of the work done by gravity?
- Drakkith
- · Replies 11 ·
Projectile Motion - Skier & Ramp
- Denize
- · Replies 5 ·
First law of thermodyamics: undestanding required
- Sahil Dev
- · Replies 24 ·
Hooke's Law and Centripetal Motion
- CAG0625
- · Replies 2 ·
Find the Angle Theta for E Field in Glass Below Boundary | E Field Problem
- austinmw89
- · Replies 5 ·
Answer out by 2 orders of magnitude....how?
- kostoglotov
- · Replies 1 ·
Projectile motion of a fired cannon ball
- KEVIN Phlem
- · Replies 5 ·
Binding energy per nucleon and fission/fusion
- Hashiramasenju
- · Replies 3 ·
A +'ve charge Q is fixed to the origin. A -'ve charge 9Q
- abm77
- · Replies 5 ·