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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Deriving the Coefficient of Rolling Friction for a Cart on an Incline
- Shay10825
- · Replies 11 ·
Calculating Average Drag Through Plasticene
- D.T.
- · Replies 3 ·
Solve Equilibrium Problem: Uniform Beam Weight & Forces
- kbehie
- · Replies 4 ·
Solution: Distance Traveled by Car with Air Resistance
- Jess1986
- · Replies 1 ·
Physics Question: How Fast Do You Need to Walk to Fall Over a Cliff Railing?
- fishmonk
- · Replies 9 ·
Solve Block & Pulley Problem: Find Mass
- highlander2k5
- · Replies 1 ·
Solving an Inclined Plane Problem: Find the Minimum Force
- eok20
- · Replies 11 ·
Gravitational Potential Energy Calculation for Satellite in Orbit
- Harmony
- · Replies 2 ·
Simple Steps to Solving Force-Related Problems
- Da-Force
- · Replies 3 ·
Heat Conduction: Steel vs. Concrete - Can You Help Tinus?
- MetalCut
- · Replies 3 ·
Suggestion on antimatter coursework
- vittel18
- · Replies 2 ·
Principle of Conservation of Linear Momentum
- helen3743
- · Replies 1 ·
How Does Mass Affect Velocity in a Two-Ball Pendulum Collision?
- chazgurl4life
- · Replies 1 ·
Questions on Electrostatics/Electricity/Stuff?
- Mehta29
- · Replies 2 ·
Phone a friend question and specific heat
- physicskillsme
- · Replies 6 ·
Discovering the Other Functions of Domestic Air Conditioners
- kidia
- · Replies 6 ·
Estimating Atmospheric Masses Using the Barometric Equation
- Brewer
- · Replies 10 ·
What is the Zeroth Law of Thermodynamics and How Does it Define Temperature?
- francisco
- · Replies 3 ·
What is the Kinetic Energy of the Daughter Nucleus?
- mb85
- · Replies 6 ·
What is the tension on the line when the elevator is accelerating
- superdave
- · Replies 5 ·
How Does Current Affect Magnetic Force and Torque in a Rotating Loop?
- kidia
- · Replies 13 ·
Optical spectrometer experiment
- LoD
- · Replies 1 ·
Satellite Orbital Transfers: How to Calculate Work Done by Rocket Motors
- pureouchies4717
- · Replies 3 ·
Why Does a Rigid Electric Dipole Move in an Electric Field?
- MaddenDude
- · Replies 3 ·
Should You Adjust Your Thermostat When Leaving Home for Short Periods?
- sharonita
- · Replies 1 ·
Solving a Momentum Problem: Calculating Average Force and Impulse
- rachael
- · Replies 1 ·
How Fast Must a Turntable Spin to Slide a Bug Off?
- neoking77
- · Replies 1 ·
Speed of Light: Wave Frequency & Wavelength Explained
- BoogieL80
- · Replies 1 ·
The cost to transmit the energy to the city each hour is $534.944.
- AdnamaLeigh
- · Replies 2 ·
How Do Asymmetrical Stepladder Masses Affect Vertical Forces?
- Swagger
- · Replies 1 ·
How Do You Calculate the Maximum Height of a Projectile Shot Upwards?
- pureouchies4717
- · Replies 5 ·
Solving Spring System: Box Movement & Total Work
- Huskies213
- · Replies 1 ·
Mechanical Waves & Wave Equation
- verd
- · Replies 1 ·
What Are Simple Home Experiments to Understand Molecular Behavior?
- Espresso
- · Replies 2 ·
What Formula Can Help You Understand Satellites in Orbit?
- pureouchies4717
- · Replies 6 ·
Calculating Magnetic Field to Overcome Friction in Metal Wire Setup
- Dr.Brain
- · Replies 7 ·
Is Time a Scalar or a Vector in Physics?
- louis arthur
- · Replies 5 ·
Capacitors and Dialectric Constant
- kris24tf
- · Replies 3 ·
Straight Line Motion: Time & Distance Calculation
- Jess1986
- · Replies 26 ·
How Do Weight and Magnetic Force on an Electron Compare Near Earth's Surface?
- kidia
- · Replies 1 ·
Velocity and particle of a particle with a wave going through
- sauri
- · Replies 2 ·
Sunlight Intensity: Calculate Total Average Power Output of Sun
- 1ceHacka
- · Replies 3 ·
Need help to understand the photovoltiac effect please
- chuck_norris
- · Replies 2 ·
Simple harmonic motion and maximum speed
- sauri
- · Replies 2 ·
Magnetic Fields and Maximum Current
- Mehta29
- · Replies 1 ·
What is the required horizontal force to deflect a hanging rod by 30 degrees?
- John O' Meara
- · Replies 3 ·
How Much Ice Was in the Calorimeter Initially?
- boomboompoop
- · Replies 1 ·
Projectile with air resistance
- Jess1986
- · Replies 33 ·
Why is it that in general geodesics are paths of stationary character
- Thrice
- · Replies 2 ·
Help with a probability question
- justinbaker
- · Replies 1 ·
Kinetic friction - finding time
- inner08
- · Replies 3 ·
Me Understand This Before The Test 2morrow: Current In Capacitor Circuit
- Lisa...
- · Replies 9 ·
How Do You Calculate Tension Forces in a Hanging Weight Problem?
- mrserv0n
- · Replies 1 ·
Calculating Density of Immersed Weight using Vibrations and Fluid Statics
- boomboompoop
- · Replies 1 ·
Power loss in transmission lines (Electromagnetic Induction and Faraday's Law)
- confusedbyphysics
- · Replies 1 ·
Total Acceleration of a Ball Whirled in Inclined Vertical Circle
- cfkorea
- · Replies 1 ·
Human Eye Resolution: Testing Light Levels
- alex_boothby
- · Replies 1 ·
N-slit Interference/Diffraction
- Warr
- · Replies 1 ·
+ or - in an equilibrium problem
- blutoonwcarrotnnail
- · Replies 4 ·
Solving for Time of Collision for 2 Particles with Initial Speed u
- Jess1986
- · Replies 4 ·
Charging a Battery: Finding the Current in a Series Circuit
- moo5003
- · Replies 3 ·
Spring System with Masses: Force and Vertical Oscillations
- Lewis
- · Replies 1 ·
Electrical Fields in everyday life
- standardflop
- · Replies 1 ·
Efficiency of Carnot Engine w/ 0.75kg Ideal Gas
- endeavor
- · Replies 37 ·
How Much Heat Does a 111V Electric Iron Develop in One Hour?
- AdnamaLeigh
- · Replies 1 ·
Parallel Batteries: Power a Wheelchair Motor
- moo5003
- · Replies 4 ·
How Do I Calculate the Specific Heat of Metal in a Heat Transfer Problem?
- Disgustipated
- · Replies 11 ·
Calculating Wave Distance Across Land
- NoHeart
- · Replies 4 ·
Finding magnetic force on two different segments
- ultrabionic_ang
- · Replies 1 ·
Looks like a lot of people mess up on energy
- Da-Force
- · Replies 9 ·
Is Collaborative Homework Increasing Error Rates in Physics Assignments?
- pureouchies4717
- · Replies 2 ·
Banked Curves (finding smallest & largest speed)
- helen3743
- · Replies 2 ·
Calculating Work and Energy in a Block on an Inclined Plane
- chazgurl4life
- · Replies 16 ·
Calculating Particle Collision Time and Speeds in Vertical Projection
- Jess1986
- · Replies 4 ·
Rollercoaster& velocity problem
- chazgurl4life
- · Replies 9 ·
Velocity of a Raindrop: Solving $\frac{dv}{dt} = 9 - 09.t$
- cscott
- · Replies 2 ·
Calculating Speed & Height of a Spring-Released Ball
- chazgurl4life
- · Replies 8 ·
DrewDrew's Rotational Dynamics Questions: Seeking Answers and Understanding
- johngatlin
- · Replies 32 ·
Work and enegry theoretical problem
- chazgurl4life
- · Replies 6 ·
Mechanics -straight line motion
- Jess1986
- · Replies 11 ·
Calculating Time and Oscillations in Spring-Mass System | Beginner's Guide
- kel
- · Replies 19 ·
Diameter of the Image: Solving Problem with Professor's Steps
- mr_coffee
- · Replies 8 ·
Calculate Tangential & Normal Acceleration of Particle in Elliptical Orbit
- brasilr9
- · Replies 5 ·
Proof for Radiation Momentum Transfer to Perfect Absorber?
- Kenny Lee
- · Replies 2 ·
Increase Carnot Efficiency: Lower Low-Temp Res?
- endeavor
- · Replies 7 ·
Solve Linear Momentum Problem: 6,000 N, 900 kg, 25 m, 20 m/s
- physicskillsme
- · Replies 13 ·
What Force is Responsible for a Car's Kinetic Energy?
- nicolas38
- · Replies 2 ·
Millikan's experiment with a twist
- physicsss
- · Replies 2 ·
Assignment Help, Combustion Engine
- TysK
- · Replies 2 ·
Tire inflation to determine weight
- BooGTS
- · Replies 5 ·
Can a Man Catch a Constantly Accelerating Train?
- Jess1986
- · Replies 1 ·
Did I assume too much in this problem? Stuck on some trig, simple mirror.
- mr_coffee
- · Replies 10 ·
Need to prove my teacher wrong on this test question
- Gmoney23
- · Replies 3 ·
Does the Efficiency of Pulley Systems Increase with More Pulleys?
- dekoi
- · Replies 2 ·
Find Out if Diffraction Grating Can Resolve Wavelengths 5800 & 5802 Angstroms
- Reshma
- · Replies 4 ·
Solving Horizontal Motion Problem: Tension & Angular Speed
- GregA
- · Replies 4 ·
Discover the Solution to a Simple Physics Problem: Bullet Speed Calculation
- k20a3
- · Replies 15 ·
More projectile motion problems (sigh)
- raizen91
- · Replies 8 ·