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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What is your friends speed relative to you?
- dashkin111
- · Replies 1 ·
How Deep Does a Barge Sink with 3000 Tonnes of Coal?
- j_suder2
- · Replies 4 ·
Are These Physics True or False Answers Correct?
- Jimmy215
- · Replies 1 ·
How Do You Calculate the Force of a Falling Object on Impact?
- Zoe-b
- · Replies 2 ·
Spring launcher to hit a target at given distance and height
- maggiemicmuc
- · Replies 6 ·
Logic gates problem Need to check if my answers are correct
- rock.freak667
- · Replies 2 ·
Kinematic Equations for Catching Runner A
- schang
- · Replies 5 ·
GPS and Special relativity (Graph)
- p4h
- · Replies 19 ·
Power needed to accelerate up incline
- ferswin
- · Replies 8 ·
Momentum/Impusle problem [revised]
- harelo
- · Replies 12 ·
How Do You Calculate the Fall Time and Impact Velocity of a Dropped Capsule?
- cosie
- · Replies 2 ·
Latent Heat: Calculating Final State of Ice/Steam Mix
- fannge
- · Replies 2 ·
What Engaging Models Can You Showcase in a Presentation on Nikola Tesla?
- LadiesMan
- · Replies 8 ·
Graphically interpreting data regarding magnification with a convex lens
- dbodow
- · Replies 1 ·
Current in an RLC circuit at very small and very large frequencies
- spacemanrussell
- · Replies 3 ·
A physics (calculus) problem that I can't set up.
- baron.cecil
- · Replies 4 ·
What is the Kinetic Energy of a Space Probe Launched from Zero?
- Feldoh
- · Replies 4 ·
Calculating Time of Flight for Artillery Shell
- streetracer14
- · Replies 2 ·
Tossing upward with air resistance
- jvileisis
- · Replies 1 ·
Finding spring stretch distance from mass and oscillation period
- sheepy
- · Replies 1 ·
Solving a Sky Diver Project: Designing a Device to Land from 5,000 ft
- skatj
- · Replies 13 ·
Ball attached to two strings in circular motion
- Cate
- · Replies 18 ·
What is the most appropriate conversion
- Saladsamurai
- · Replies 2 ·
Which Mass Travels Further When Stopped by the Same Force?
- astro_kat
- · Replies 2 ·
Finding Speed of two objects in space
- MellowOne
- · Replies 5 ·
How long is this area in the air?
- shawn2004
- · Replies 1 ·
Finding distance traveled of a dropped object
- MellowOne
- · Replies 16 ·
What is the Velocity of the Third Object After Explosion?
- VanKwisH
- · Replies 3 ·
Need check on temperature (calorimeter) Problems
- tachu101
- · Replies 1 ·
Stationary motorcycle speeding up to a moving car
- aham925925
- · Replies 12 ·
Finding the force overcoming friction
- sarahhhh
- · Replies 1 ·
Finding RLC circuit current at very large and very small frequencies
- kevin7913
- · Replies 6 ·
Simple throwing ball up problem
- j_suder2
- · Replies 9 ·
Toboggan down hill, FIND ANGLE?
- j_suder2
- · Replies 11 ·
Waves and light (conceptual questions)
- Jbum
- · Replies 2 ·
How Does Doubling Molecular Mass Affect Vibration Frequency?
- GX255
- · Replies 2 ·
Calculating Force on a Vertical Wire Rope with 20kg Weight
- DJT1967
- · Replies 1 ·
Spring pushes two masses hanging from ceiling, how high does one go?
- supercali
- · Replies 8 ·
Acceleration in terms of distance, but not time or final velocity?
- madchemist
- · Replies 22 ·
How Much Total Kinetic Energy Do Split Nucleus Fragments Have?
- quickclick330
- · Replies 2 ·
How Does Mass Affect Velocity in an Elastic Collision?
- mayanfox
- · Replies 3 ·
What does proportional mean in Ohm's law?
- Mrod777
- · Replies 3 ·
Universal Gravitation and rockets
- MellowOne
- · Replies 6 ·
Cable Tension Problem: Calculating Tension in Cables with Changing Angles
- Emo Grass
- · Replies 1 ·
Calculating Pendulum Bob Properties: Mass 500g, Length 2m, 10° Displacement
- ThenewKid
- · Replies 4 ·
Calculating Impulse for Hailstones Striking Car Roof
- j_suder2
- · Replies 2 ·
Why are the integration constants the same for kinematic equations?
- lLovePhysics
- · Replies 7 ·
Derivation of cantilever oscillation period and amplitude formulas
- ash1098
- · Replies 4 ·
Radius of light circle from submerged source
- yuvlevental
- · Replies 6 ·
Calculating Maximum Depth for a Sphere Dropped into Water
- islanderfan
- · Replies 13 ·
Calculating Probability of Excited State of Harmonic Oscillator
- quickclick330
- · Replies 1 ·
What Would Happen To The Wave-particle Dualism If Planck’s Constant H=0?
- khorsani
- · Replies 7 ·
What force is needed to prevent a plane from crashing?
- Bonjkk
- · Replies 3 ·
Skier's coefficient of velocity
- mortho
- · Replies 19 ·
Where is the weight force located on a distributed load pipe?
- damasgate
- · Replies 1 ·
Work, Energy, Power: Accelerating Mass from Rest
- a150daysflood
- · Replies 2 ·
How do I calculate the necessary speed and direction for a plane to offset wind?
- Charles C
- · Replies 8 ·
How Does the Parallel-Axis Theorem Affect Pendulum Oscillation Periods?
- GreenLantern674
- · Replies 4 ·
Finding resultant of 5.0m W and 5.0m NW displacements
- aham925925
- · Replies 6 ·
One Dimensional Kinematics Jet Problem
- Fumbalodian
- · Replies 14 ·
What is the new rotation time of the merry-go-round?
- quickclick330
- · Replies 9 ·
How Can You Create a Unique Black Hole Simulation for a School Project?
- LadiesMan
- · Replies 1 ·
Does the Refractive Index of a Lens Affect its Focal Length?
- dranseth
- · Replies 3 ·
Finding amplitude, frequency, velocity and acceleration for simple harmonic oscillation
- wowolala
- · Replies 1 ·
Why does gravity equal centripetal force at the top of a loop?
- kevinf
- · Replies 5 ·
Speed of Free Electron Moving in Space
- quickclick330
- · Replies 11 ·
What is the speed of a box pulled by a tension force after a given time?
- quickclick330
- · Replies 2 ·
Finding gate volume from density for static equilibrium problem
- damasgate
- · Replies 6 ·
Analogy between conductance and capacitance
- Mo7amed
- · Replies 2 ·
What Is the Correct Approach to Find the Centroid of a Parabolic Area?
- jesuslovesu
- · Replies 2 ·
Calculating the pH of a Substance
- uneek1960
- · Replies 4 ·
Really simple ideal gas question.
- kidwithshirt
- · Replies 7 ·
What is the value of B at the instant E reaches its maximum value?
- samee
- · Replies 1 ·
How Does a Proton Move in a Magnetic Field?
- aurora14421
- · Replies 2 ·
How Does the Coriolis Effect Influence River Water Levels at Different Banks?
- karnten07
- · Replies 1 ·
Converting harmonic oscillator partition function to geometric series
- asdfTT123
- · Replies 1 ·
Ranking forces on beam posts with safe at different positions
- jperk980
- · Replies 6 ·
Acceleration and velocity of a free charge repelled by a fixed charge
- Aleale978
- · Replies 1 ·
Finding input work and mechanical advantage for a pulley system
- pebbles
- · Replies 2 ·
How Does Viscosity Affect Water Flow in Pipes?
- mr.
- · Replies 1 ·
Finding radius of curvature and focal length of mirrors
- rhxoehwhfh
- · Replies 5 ·
Solving Skier's Coefficient with 12.0 m/s Speed
- mortho
- · Replies 1 ·
How to Calculate Initial Velocity in an Inelastic Collision?
- harelo
- · Replies 14 ·
Grocery Cart Forces: Final Speed
- mortho
- · Replies 6 ·
Pascal's Principle? Are my solutions correct?
- predentalgirl1
- · Replies 2 ·
Mirror equation and the magnification equation
- rhxoehwhfh
- · Replies 1 ·
Mirror equation for object at center of curvature and at 1.5 m
- rhxoehwhfh
- · Replies 2 ·
Concave mirror producing an image 3 times larger than the object
- rhxoehwhfh
- · Replies 2 ·
Entropy Change of an Expanding Gas
- xinlan
- · Replies 3 ·
How Do You Calculate Force and Work for Lifting a Box onto a Dock?
- AnnieD
- · Replies 13 ·
How Fast Does Robin Hood's Arrow Propel the Sheriff's Hat?
- jenha14
- · Replies 7 ·
Camera focus distance for a mirror selfie at 2.3 m
- rhxoehwhfh
- · Replies 4 ·
Image properties in concave mirror with 50 cm focal length
- rhxoehwhfh
- · Replies 2 ·
At what height does the boy lose contact with the ice?
- mikesown
- · Replies 5 ·
Calculating Work Required to Accelerate an Electron
- AnnieD
- · Replies 9 ·
Thermodynamics Heat Engine Problem
- smithnh
- · Replies 1 ·
How do I calculate the maximum speed of a bungee jumper?
- haha
- · Replies 7 ·
A 3.0 g coin moving to the right at 26.0 cm/s makes an elastic head-on colli
- lettertwelve
- · Replies 5 ·
Find the Second Resonant length of an air column
- Spookie71
- · Replies 3 ·
Why does a pencil sometimes jump backwards when a mass drops on it?
- Zoe-b
- · Replies 5 ·