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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Help with Simple High School Physics
- duke1
- · Replies 5 ·
Calculating Work Done by a Variable Force on a Particle-Like Object
- mbrmbrg
- · Replies 3 ·
A force problem that seems easy but hard
- cy19861126
- · Replies 4 ·
How Does Kinetic Energy Affect Spring Elongation?
- blackout85
- · Replies 1 ·
How Does a Crate's Impact Translate to Spring Compression?
- blackout85
- · Replies 1 ·
How Do Acceleration, Velocity, and Position Change When a Tow Truck Pulls a Car?
- courtney1121
- · Replies 8 ·
Simple Harmonic Motion and frequency of vibration
- metalmagik
- · Replies 1 ·
Mind boggled by a tension problem.
- bananan
- · Replies 5 ·
How Do You Calculate Tensions in a Suspended Mass System with Different Angles?
- Fusilli_Jerry89
- · Replies 1 ·
How Do Two Objects Attract Each Other Gravitationally?
- Angelofhappiness
- · Replies 1 ·
With static equillibrium TEE exam in a few days
- beefcake466
- · Replies 14 ·
Finding the Angle Between Vectors and Determining Their Plane
- jkh4
- · Replies 1 ·
Understanding Forces on a Frictionless Inclined Plane - Explained
- student85
- · Replies 4 ·
Distance of an object launched by a rubber band decreases as its mass increases
- Nastyusha
- · Replies 3 ·
Cart with propeller - Find force of friction
- jenn3999
- · Replies 2 ·
Density of Moon Rock: Solve Mass with Pressure
- needhelp83
- · Replies 8 ·
Force of friction of this cart on wheels with a motor driven propeller
- jenn3999
- · Replies 1 ·
Falling bucket of water physics
- rleung3
- · Replies 2 ·
Toy Cannon: Calculating the Projectile Speed
- Dorothy Weglend
- · Replies 2 ·
Metal in water thermal equilibrium? Help
- madbeemer
- · Replies 2 ·
Calculate: Block's Kinetic Energy, Work by Forces, & Gravity
- Sportsman4920
- · Replies 7 ·
Climbing a 10m Ladder: Calculating the Work for a 50kg Student
- almost__overnow
- · Replies 1 ·
Calculating work done by friction
- rleung3
- · Replies 3 ·
How Can I Improve My A-Level Physics Experimental Investigation?
- THE 1
- · Replies 1 ·
Graphing Wave Function Phi(x): What Does It Look Like?
- alias25
- · Replies 1 ·
What happens when we close the switch?
- firefox444
- · Replies 12 ·
What is "photosensitive" property?
- lingling
- · Replies 1 ·
Basic angles of refraction and incidence help needed
- Couperin
- · Replies 2 ·
Toy Airplane Flying: Lift Force vs. Reaction Force
- beefcake466
- · Replies 1 ·
Acceleration and friction force
- moomoocow
- · Replies 1 ·
Calculating Hydrostatic and Gravitational Forces in Fluid Mechanics
- Forceflow
- · Replies 1 ·
Pt. Mass and Spring rotating on table
- d843
- · Replies 1 ·
Calculate Moment of Inertia: Axis of Object in Figure | L, M, m1, m2
- dtesselstrom
- · Replies 3 ·
Velocity v(t) = b(t-T)^2, find position function x(t)
- courtney1121
- · Replies 5 ·
Question on wire tension & hinge force
- student331
- · Replies 2 ·
Static Equilibrium and downward force
- Meowzers
- · Replies 4 ·
A force question that I couldn't understand
- cy19861126
- · Replies 6 ·
How is Wave Propagation Time Calculated for a Rope in a Mine Shaft?
- sapiental
- · Replies 3 ·
Interference of rectangular pulse
- sapiental
- · Replies 1 ·
Hard tutorial question can anyone help
- plug2002
- · Replies 6 ·
How Do You Calculate the Energy of a Spring Using Physics Principles?
- muna580
- · Replies 16 ·
Calculating the Point of Gravitational Balance between Earth and the Moon
- quickslant
- · Replies 19 ·
Calculating Magnetic Field from Spin Alignment Energy Difference
- tigert2004
- · Replies 2 ·
Why is the Energy in Capacitance Formula (CV^2)/2 Instead of QV?
- semc
- · Replies 1 ·
Finding rotational inertia of a yo-yo
- chaose
- · Replies 1 ·
Understanding the Use of Sin and Cos Formulas in Simple Harmonic Motion
- smileandbehappy
- · Replies 3 ·
Calculating Skier's Height Over Ramp and Hedge Using Kinematics and Energy
- samdiah
- · Replies 6 ·
The Bohr Model of the Hydrogen Atom
- frankene
- · Replies 2 ·
Will a Projectile Hit a Falling Target If Fired Simultaneously?
- LastBloomingFlower
- · Replies 5 ·
Solving the Perfect Gas Equation for Volume at Sea Level and 2000m
- Benny
- · Replies 5 ·
Small question about molar concentrations.
- seang
- · Replies 1 ·
Homework Questions? Am I right or the Professor?
- lousymusicmaker
- · Replies 15 ·
Understanding Work and Energy: Step-by-Step Problem Solving Guide
- muna580
- · Replies 3 ·
How Is the Shear Modulus of a Sponge Calculated?
- mikefitz
- · Replies 1 ·
Solving Strange Friction AP Problems with m, R, mu, v
- turdferguson
- · Replies 3 ·
How Are Sound Waves and Frequencies Affected in Musical Instruments and Rooms?
- physics_06er
- · Replies 5 ·
Diving into water / Nonconservative forces
- xrotaryguy
- · Replies 2 ·
Calculate the average net force acting on the bullet
- silje
- · Replies 3 ·
My answer: Solutions to Physics Problems: Pendulums, Pulleys, Friction, and Work
- :::JMANN:::
- · Replies 14 ·
Water Flow Speed: Diameter 0.2mm to 5mm
- mikefitz
- · Replies 1 ·
Undamped oscillator with driving force
- thenewbosco
- · Replies 1 ·
Pulley system with Moment of Inertia
- TrippingBilly
- · Replies 1 ·
Forensic Expert Bullet Velocity-Ballistic Pendulum :uhh:
- samdiah
- · Replies 2 ·
Angular Acceleration of a rotating wheel
- TrippingBilly
- · Replies 5 ·
How Do You Calculate Force and Acceleration in a Crash Test Scenario?
- JB83
- · Replies 6 ·
Distance in time at acceleration
- dirty_d
- · Replies 7 ·
Conceptual Momentum/Energy Problem
- JB83
- · Replies 2 ·
Moment of Inertia and Angular Speed
- TrippingBilly
- · Replies 2 ·
Calculating Energy Changes in a Crane Lifting a Beam: A Scientific Analysis
- Alaa Wahbi
- · Replies 2 ·
Type 2 Projectiles TEST TOMMOROW
- 3dsmax
- · Replies 4 ·
Understanding Conventional Current vs Electron Flow
- physicsgal
- · Replies 7 ·
Calculate the orbital radius of a synchronous satellite
- james111
- · Replies 4 ·
I have To Create my Own World W/O Friction HELP
- PacersRule07
- · Replies 12 ·
Simple problem using Work-Energy Theorem
- mbrmbrg
- · Replies 2 ·
What is the force on the ball's lowest point in a vertical revolving motion?
- fara0815
- · Replies 11 ·
Projectile Motion, missing variables.
- Visual1Up
- · Replies 10 ·
What is the angular velocity of the bar after being struck by the ball?
- trajan22
- · Replies 12 ·
Can You Calculate Wood Density Without Using Calculus?
- SoccaCrazy24
- · Replies 4 ·
Inelastic Collision Derivation Help
- GreenSabbath
- · Replies 2 ·
Help Needed: Solving Train Acceleration Problem
- Parallel
- · Replies 7 ·
How Do Kinetic Energies of Particles A and B Compare After Spring Release?
- cd80187
- · Replies 1 ·
Work Equals Potential and Kinetic Energy - Clarification Needed
- moomoocow
- · Replies 5 ·
Projectile Motion of roller skates
- LastBloomingFlower
- · Replies 7 ·
How Does Increasing Pressure Affect the Melting Point of Solids?
- madbeemer
- · Replies 1 ·
How Does a Falling Ladder Affect the Impact Force on a 200 Pound Man?
- bpatterson9671
- · Replies 3 ·
Calculating Pressure Difference in Blood Flow Using Bernoulli's Equation
- GemmaN
- · Replies 2 ·
I Need Help with Archimedes Priniciple and Bouyant Force
- AB240sx
- · Replies 6 ·
Understanding Action-Reaction Pairs in Bungee Jumping Forces
- courtney1121
- · Replies 18 ·
How Do You Calculate Tension in a Wire When a Model Airplane Flies in a Circle?
- integra2k20
- · Replies 4 ·
Calculating Frictional Force: Solving for u in a Horizontal Curve | Physics Help
- mixedtape_15
- · Replies 2 ·
What Are the Key Concepts of Motion and Forces?
- wakejosh
- · Replies 15 ·
What is the Elastic Collision Dilemma and How Can It Be Solved?
- iliah
- · Replies 6 ·
How do you find acceleration when you are only given netwons?
- AznBoi
- · Replies 3 ·
Newton's Law Problem (got the first half)
- AznBoi
- · Replies 20 ·
What is the force in the y-direction given the force and angle?
- joess
- · Replies 15 ·
Third Law Partners: Forces in Action
- courtney1121
- · Replies 5 ·
Simple, but confusing question about Newton's laws
- AznBoi
- · Replies 3 ·
Solving Forces Confusion: Finding Chris's Force on Chair
- AznBoi
- · Replies 5 ·
Lenz's law - need clarification
- Werg22
- · Replies 1 ·