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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Calculating Kinetic Energy in Elastic Collisions: Hammer and Nail Problem
- Cassie
- · Replies 1 ·
Solve Force and Tension for Masses in Inclined Plane System | Newton's Laws
- jedjj
- · Replies 8 ·
Position when 2 objects pass each other
- dvdqnoc
- · Replies 3 ·
Packaged dropped from Hot Air Balloon
- dvdqnoc
- · Replies 3 ·
Where Is the Electric Field Zero Between Two Positive Charges?
- Ry122
- · Replies 11 ·
Solve Acceleration & Apparent Weight of Child on Ferris Wheel
- bob1182006
- · Replies 4 ·
How Do You Calculate the Final Velocity in a Partially Elastic Collision?
- physicsimpaired
- · Replies 1 ·
Calculating Coefficient of Kinetic Friction on a Sliding Pig
- KMjuniormint5
- · Replies 14 ·
Solving 615-kg Racing Car Homework Part 1
- ilkjester
- · Replies 11 ·
What is the centripetal acceleration of the end of the rod?
- ilkjester
- · Replies 15 ·
Calculating Tension Force in a Tug-of-War
- temaire
- · Replies 3 ·
Speed of a box at the bottom of a incline.
- Paulbird20
- · Replies 6 ·
Understanding Circular Motion: Essential Concepts and Equations
- ilkjester
- · Replies 1 ·
Work/Energy Help: Calculating Force, Work & Energy Applied to a Piano
- megaforcetkd
- · Replies 11 ·
Velocity Selector Homework: Determine Proton Speed for No Deflection
- Ryo124
- · Replies 1 ·
Conceptual question on momentum
- Bob Loblaw
- · Replies 1 ·
Solving Physics Homework: Frictional Force & Speed of Baseball Player
- jess_08
- · Replies 4 ·
Magnitude of the rate of change of momentum of water
- JadeBunny
- · Replies 5 ·
Conservation of Anular Momentum
- mit_hacker
- · Replies 5 ·
Tension in a cable supporting a beam
- aligass2004
- · Replies 17 ·
How Does Constant Velocity Change with Different Accelerations?
- fitchguy316
- · Replies 3 ·
How Do Applied and Frictional Forces Compare in a Constant Speed Scenario?
- 1010
- · Replies 1 ·
Newton's 2nd law in circular motion
- miamiphysics42
- · Replies 5 ·
How do I put a Zenith Angle in my calculator?
- CaityAnn
- · Replies 3 ·
Calculating Sound Intensity at a Distance from a Speaker
- tashh01
- · Replies 3 ·
Energy and collisions when objects stick together, vi, vf help
- Jeph
- · Replies 1 ·
What is the Minimum Power Required to Lift Sand at a Quarry?
- odie5533
- · Replies 6 ·
Calculating Tension in a Revolving Sphere: Solving for T1 and T2
- klm
- · Replies 21 ·
Website title: Understanding Tension and Energy in a Vertical Swing
- pinkyjoshi65
- · Replies 2 ·
Conservation of energy of an elevator
- knives out
- · Replies 2 ·
Gravitational potential energy of baseball
- aftermatth
- · Replies 5 ·
An artillery shell is fired I don't know
- Cowtipper
- · Replies 3 ·
Revolving Around a Star: Calculating an Orbital Period
- danago
- · Replies 3 ·
Finding the Temperature at which Oxygen Molecules Have Double the RMS Speed
- Ry122
- · Replies 2 ·
Solving Work & Velocity Problem: Proton & Electric Field
- Ry122
- · Replies 3 ·
Find Weight in Homework Statement with Diagram
- pooface
- · Replies 3 ·
Work out the velocity from the momentum?
- ryansmith885
- · Replies 6 ·
How Do You Calculate the Acceleration of a Mass in a Pulley System?
- quiteacacophony
- · Replies 1 ·
Given angle and distance traveled find initial velocity
- shaunk
- · Replies 3 ·
Max Wind Speed for Small Animals to Stay Upright
- Cypripedium
- · Replies 9 ·
Kinematics police car chase question
- spizma
- · Replies 1 ·
Position of toy moving on straight track
- dvdqnoc
- · Replies 1 ·
River Speed Calculations for Relativity
- kraaaaamos
- · Replies 6 ·
Net Force of a Rocket and Acceleration
- icecubefosho
- · Replies 1 ·
Calculating Work Done and Distance Traveled on Inclined Surfaces
- willingtolearn
- · Replies 4 ·
Calculating Distance with a Balanced Pivot
- aligass2004
- · Replies 4 ·
What are the velocities of two objects after an elastic head-on collision?
- ace214
- · Replies 11 ·
I lost my calculaor Please calculate this for me
- rocomath
- · Replies 13 ·
Help please, I seem to have reached an impasse
- Cowtipper
- · Replies 1 ·
Please help - Rotational Kinetic Energy of Moving Wheel
- BlueSkyy
- · Replies 5 ·
Trouble answering this please review
- MrTaylor
- · Replies 1 ·
Understanding Fluid Displacement: The Difference Between Floating and Sinking
- yuvlevental
- · Replies 2 ·
How Many Different Photon Energies Are Emitted from Hydrogen Atoms in n=5 State?
- Benzoate
- · Replies 7 ·
Solving Force Problems: Finding F with Trig and Components
- rt525600
- · Replies 1 ·
Maximum Height Calculation for Elastic Collision on Frictionless Track
- ace214
- · Replies 4 ·
Rotational dynamics - pleaaaaase help
- jaded18
- · Replies 10 ·
Acceleration of a pulley/ rotational kinematics - pleaaaase help
- jaded18
- · Replies 2 ·
When Is Net Torque Equal to Zero?
- jaded18
- · Replies 6 ·
Rigid Body Kinetics Homework Solution
- 9988776655
- · Replies 1 ·
Systems of Particles: Man Climbing Rope Ladder Suspended from Balloon
- Destrio
- · Replies 4 ·
What Force Does the Table Exert on a Box Attached to a Pulley System?
- kaytee28
- · Replies 26 ·
Centripital force - did i do it correctly?
- klm
- · Replies 37 ·
Systems of Particles & Momentum
- Destrio
- · Replies 4 ·
Friction problem would really appreciate the help
- strobeao3s
- · Replies 2 ·
What is the tension in each cord?
- kaytee28
- · Replies 3 ·
Maximum compression of a spring
- supersingh
- · Replies 12 ·
Turning a Straight Wire into a wheel with spokes, solve for I
- gkinnish
- · Replies 3 ·
Calculate Force on Two Parallel Conductors
- Ry122
- · Replies 1 ·
Lance Deal's Angular Velocity & Centripetal Force in Rotational Motion
- faoltaem
- · Replies 2 ·
Solving Gloria's Ski Slope Speed
- NJCarter15
- · Replies 2 ·
Two Masses, a Pully, and an Inclinde Plane
- Robdog
- · Replies 2 ·
Solving Forces and Motion Problem: Find Net Force at t=2.35s
- Paul Nguyen
- · Replies 1 ·
How hard must you push a box to move it with a constant speed?
- daiea08
- · Replies 4 ·
Force, constant speed, friction, acceleration
- daiea08
- · Replies 1 ·
Calculating Time from Acceleration and Length - Karl's Schoolbook Question
- kalle437
- · Replies 11 ·
Force Equations and Final Speed
- odie5533
- · Replies 4 ·
Two blocks on a 30-degree incline with friction and tension
- Aerosion
- · Replies 2 ·
How is Power Dissipated in a Resistor Connected to a Charged Capacitor?
- indigojoker
- · Replies 7 ·
Finding the number of revolutions
- aligass2004
- · Replies 3 ·
Spinning the wheels: intro to angular momentum
- jaded18
- · Replies 2 ·
Show that there are three collisions and find all find velocities
- Destrio
- · Replies 8 ·
How long did this car accelerate
- ryansmith885
- · Replies 5 ·
Kinetic Energy of Rolling Motion
- Cici2006
- · Replies 4 ·
Conservation of Energy crate and ramp
- Dynex
- · Replies 2 ·
Solve a Simple Work Problem and Find Out Why You're Wrong
- Laban
- · Replies 3 ·
How much work does the earth do on the moon in one day?
- jazz07
- · Replies 1 ·
Blood pressure and needle insertion
- nfullernyg
- · Replies 1 ·
Projectile motion, 30 and 60 degrees on a level plain
- nooobie
- · Replies 2 ·
Need help with Electric Potential problem.
- PhysicsGnome
- · Replies 1 ·
Is Poisson Distribution Relevant for Analyzing 19th Century Cavalry Deaths?
- OguzhanCatal
- · Replies 1 ·
Thin lens equation for diverging lenses.
- nblu
- · Replies 1 ·
Energy Conservation and Kinetic, Wind Energies
- Yoshistr
- · Replies 1 ·
Electric Potential problem escape veloctiy.
- PhysicsGnome
- · Replies 1 ·
How Do I Calculate the Trajectory of a Pendulum-Released Ball to Land in a Cup?
- megaforcetkd
- · Replies 1 ·
Calculating Magnetic Field Intensity Between Two Parallel Wires
- Winzer
- · Replies 14 ·
Find the work done on the car by a string
- fiziksfun
- · Replies 2 ·
Who can solve these 2 questions ?
- ehsanbs1
- · Replies 3 ·
Rotational Motion of a disk and a box
- mit_hacker
- · Replies 5 ·
Calculating Work Needed to Change Spring Length
- mshah3
- · Replies 5 ·