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 Calculations: Ship's Shot at an Enemy Ship and Island Peak
- lucianman24
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Is There Buoyant Force at the Base of an Object in Water?
- kindaichi
- · Replies 26 ·
Calculating Tension and Motion in a Three-Box and Pulley System
- mbrmbrg
- · Replies 3 ·
Help with linear momentum conservation problem
- bananan
- · Replies 2 ·
What is the tension in the cords of two hanging paint buckets?
- chocolatecello
- · Replies 2 ·
Calculating Kinetic Energy in Alpha Decay: Thorium to Radon Nucleus
- Soaring Crane
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Coefficient of Friction problem
- demode
- · Replies 13 ·
What Potential Difference Will Cause the Thread to Assume a 30° Angle?
- kuwaiteng
- · Replies 2 ·
Particle dropped on platform with spring - Compression of springs
- rasa
- · Replies 1 ·
Max height given angle and distance
- agentnan
- · Replies 1 ·
Solving a Pulley Forces Problem: Tension in B and C
- ubiquinone
- · Replies 8 ·
Launching a projectile into Orbit
- Noone1982
- · Replies 5 ·
2Qs - Average Frictional Force & Velocity
- glasgowm
- · Replies 7 ·
Force on a diving board, work to stop a flywheel
- lizzyb
- · Replies 9 ·
Explanation of how a capacitor works?
- joker_900
- · Replies 1 ·
Projectile Motion - Incline Plane
- Harmony
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Impulse Momentum Theorem and space probe
- shaka23h
- · Replies 3 ·
How to Calculate Vmax in a Circuit Equation?
- Alt+F4
- · Replies 1 ·
How Much Force Must a Bicyclist Apply to Climb a Hill at Constant Speed?
- spoonthrower
- · Replies 3 ·
Coefficient of static friction question
- Angelofhappiness
- · Replies 6 ·
Why Acceleration is Always Squared | Newbie Question Answered
- newb
- · Replies 9 ·
Spring compression distance from a block sliding down a ramp
- Reverend Lee
- · Replies 5 ·
Understand Rotational Inertia for AP Physics C
- GoldPheonix
- · Replies 4 ·
Solving A = (B + C) / D - Isolate for C
- Dazed
- · Replies 3 ·
Faraday's Law and magnetic field
- erik-the-red
- · Replies 2 ·
Car crash collision calculation
- AFG34
- · Replies 2 ·
What Is the Correct Angular Speed for Doubling the CD's Kinetic Energy?
- UCrazyBeautifulU
- · Replies 4 ·
How to Solve a Tension-Pulley Problem with Acceleration and Force
- Nemi
- · Replies 3 ·
Proving the Law of Conservation of Energy Using a Pendulum
- physicsgal
- · Replies 10 ·
Action/reaction pair Newton's law
- moomoocow
- · Replies 3 ·
Understanding Forces and Acceleration in Newton's Laws of Motion
- app
- · Replies 6 ·
What is the acceleration experienced by the puck?
- petal5
- · Replies 13 ·
How to derive the kinetic gas equation?
- loom91
- · Replies 17 ·
How Fast is the River Flowing in the Fisherman's Problem?
- PPonte
- · Replies 2 ·
Suvat Question - seemingly too little info
- TicTac2
- · Replies 3 ·
Calculating Line Strength to Stop a Salmon
- cd80187
- · Replies 27 ·
How Do You Calculate the Energy of an Electron Beam in an Electron Gun?
- joker_900
- · Replies 1 ·
Calculating Work Done by a Rope on a Sled
- kbyws37
- · Replies 5 ·
Charge density, electric fields
- glid02
- · Replies 3 ·
How Do You Derive the Differential Equation for a Parallel RLC Circuit?
- piano.lisa
- · Replies 18 ·
A problem about spring constant
- katie7la
- · Replies 3 ·
Finding tension in tarzan swing
- vu10758
- · Replies 7 ·
Circular motion with tangential acceleration
- vu10758
- · Replies 3 ·
Calculating Acceleration on a Slope with Friction Coefficients
- Fusilli_Jerry89
- · Replies 9 ·
What is the total rotational kinetic energy of the wheels?
- brncsfns5621
- · Replies 3 ·
How Do I Calculate the Average Force Exerted on Bicycle Pedals?
- Liatana
- · Replies 3 ·
Speed and Mechanical Energy Lost in Railroad Car Collision
- TrippingBilly
- · Replies 3 ·
How Do You Determine the Spring Constant with Mass and Displacement?
- kbyws37
- · Replies 4 ·
Elastic potential energy of two blocks of mass
- TrippingBilly
- · Replies 7 ·
What is the Maximum Mass that Can Be Hung Before the Block Moves?
- Destrio
- · Replies 7 ·
Simple Laws of motion question
- faamfwvame
- · Replies 3 ·
Applications of vector dot product in physics
- Laossi
- · Replies 3 ·
How Far Does a Coin Roll Before Stopping Given Its Angular Deceleration?
- physics1234
- · Replies 6 ·
Understanding Kirchoff's Laws: Troubleshooting Common Application Problems
- junior_J
- · Replies 6 ·
Solving the Length of Ramp for a Box Weighing 200N
- perryrb
- · Replies 7 ·
Spring Constant of ping-pong ball
- brncsfns5621
- · Replies 3 ·
Frictional Force: Find Accel. of 3kg & 2kg Blocks
- ubiquinone
- · Replies 5 ·
Discovering the Energy of Accelerated Electron Beams by Jonty
- joker_900
- · Replies 1 ·
Calculating Air density as a function of height?
- Noone1982
- · Replies 2 ·
Learn How to Calculate cos^2 (53) with Easy Steps | Expert Tips
- Hollysmoke
- · Replies 3 ·
Physical device with both inductance and resistance
- kiwinosa87
- · Replies 2 ·
Paraglider acceleration problem
- spoonthrower
- · Replies 2 ·
Physics Major Help: Calculating Coasting Speed of Coupled Railroad and Flatcar
- almost__overnow
- · Replies 7 ·
How Is Compression Distance Calculated in a Friction-Affected Spring System?
- rmc112
- · Replies 9 ·
Calculate Skier's Horizontal Distance on Frictionless Incline: Energy Question
- parwana
- · Replies 7 ·
How Is Tension Calculated Between Train Cars During Acceleration?
- spoonthrower
- · Replies 1 ·
How Is Force Calculated on Bicycle Pedals When Cycling Uphill?
- juliorgonzalez
- · Replies 1 ·
Calculating Work Done by a Force Using Integration
- amcca064
- · Replies 10 ·
Max Force Applied to System of Two Masses Connected by Rope w/o Breaking
- vu10758
- · Replies 4 ·
A problem involving two velocities (special relativity)
- raul_l
- · Replies 3 ·
Heat Absorbed to Melt Ice & Warm Water to 10°C
- Sabres151
- · Replies 5 ·
Understanding the Right Hand Rule: A Simple Explanation and Shortcut Method
- Alt+F4
- · Replies 2 ·
Calculating Potential & Kinetic Energy of Springs & Mass: Help Needed
- Kaizer6
- · Replies 3 ·
How Do You Calculate the Constant k for a Bungee Jump Rope?
- student85
- · Replies 4 ·
Conservation of energy - pendulum
- Treefrog123
- · Replies 1 ·
Solving a Motor Lift Problem: Find Out What You Need to Do
- Liatana
- · Replies 4 ·
Help with conservative/non-conservative forces
- JasonAdams
- · Replies 3 ·
Understanding the 1 s Digit Rule in Unit Conversions | Helpful Tips and Examples
- Dazed
- · Replies 7 ·
Calculating Power for a Motorcycle on an Uphill Slope: Step-by-Step Guide
- cheechnchong
- · Replies 15 ·
Pendulum problem in KE chapter
- esinn08
- · Replies 3 ·
Newton Third Law general equation
- bigredd87
- · Replies 7 ·
Constant velocity and acceleration problem
- rcmango
- · Replies 3 ·
Solving Energy Concept Problem: Masses m1, m2, m3 Speed of m3 After 2.5m
- BunDa4Th
- · Replies 11 ·
Yes, your calculations are correct.
- petuniac
- · Replies 5 ·
How Does Friction Affect the Acceleration of a Rolling Cylinder?
- John O' Meara
- · Replies 10 ·
Circular Motion of a car on a curve
- FossilFew
- · Replies 3 ·
Solving Physics Problem 4: 24840 N/C?
- Alt+F4
- · Replies 1 ·
Single slit diffraction, from an angle
- mooshasta
- · Replies 1 ·
Help w/ review of lab conclusion
- NIZBIT
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Simple Energy Problem Im missing something
- Stevedye56
- · Replies 3 ·
Trig. identities method problem
- DAZZLED
- · Replies 2 ·
Calculating Work Done in a Closed Piston Cylinder Device with V^1.2 = Constant
- junglep
- · Replies 3 ·
Circular Motion and speed of mass
- vu10758
- · Replies 2 ·
Calculating Resultant Force: 60N East + 40N North | Magnitude & Direction
- caityjo
- · Replies 10 ·
Moment of inertia uniform plate problem
- monotonousJ
- · Replies 1 ·
Circular Motion Problems: Solving for Speed, Period, and Acceleration
- ysk1
- · Replies 2 ·
Solving for Salmon's Speed: vi = ?
- petuniac
- · Replies 4 ·
How Can Jane Calculate the Minimum Time to Climb the Vine?
- Tensaiga
- · Replies 7 ·
Tennis ball hitting a wall and rebounding - contact force
- mathewings
- · Replies 1 ·
Calculating Forces on a Block Against a Wall
- mbrmbrg
- · Replies 2 ·