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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Momentum and kinetic energy of collision between two identical railroad cars
- dani123
- · Replies 1 ·
Oscillation and Rotation: Can You Solve These Equilibrium and Motion Problems?
- benf.stokes
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Find velocity of gun and bullet on frictionless surface
- dani123
- · Replies 2 ·
Lift force on car roof at 100km/hr
- salpal243
- · Replies 1 ·
Membrane Potential and Permittivity
- alex_b93
- · Replies 1 ·
High Pressure in Tyres, Won't Burst
- Kyoma
- · Replies 1 ·
Speed of longitudinal wave 30 times the speed of a transverse wave?
- PirateFan308
- · Replies 8 ·
Particle's Velocity in t: -kt^3 + c
- Cbray
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Can the spring constant k be negative ?
- idir93
- · Replies 5 ·
Magnetic Field of a Coil Problem
- bdh2991
- · Replies 1 ·
Physics momentum and impulse questions
- Ereny
- · Replies 3 ·
How to Calculate Work Required for Moving a Charge in 2D Electric Field
- linda300
- · Replies 1 ·
Centre of mass problem; Non uniform rod with ball weights
- Conesdome
- · Replies 1 ·
Physical meaning of a commutator?
- Fellowroot
- · Replies 1 ·
How to Calculate Relative Velocity and Force for a Moving Plane and Carrier?
- TyErd
- · Replies 1 ·
Deriving x = A cos(ωt) for simple harmonic motion
- Oz Alikhan
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Calculate the pressure experienced by the sensor ?
- Colin19
- · Replies 5 ·
Kinetic friction, mass on track when will it stop.
- sg001
- · Replies 4 ·
A plane is flying through the air at a velocity 88km/hr
- jacknjersey
- · Replies 16 ·
Find the speed of fluid using bernoulli
- songoku
- · Replies 2 ·
How Far Should a 100kg Mass Be Placed from Point A to Keep a Rod Horizontal?
- shalikadm
- · Replies 10 ·
Calculate the distance the aircraft has travelled ?
- Colin19
- · Replies 19 ·
Sound Intensity and Bird Watching
- majormaaz
- · Replies 3 ·
Mathematical Foundations of Quantum Physics for High School Students
- KJB
- · Replies 5 ·
Looking for tables of data - Nuclear/Particle physics
- iamBevan
- · Replies 1 ·
Maximum current in parallel conducting rods above and below weight-lifter
- tnbstudent
- · Replies 3 ·
Equilibrium of Two Rods: Finding the Point of Toppling
- songoku
- · Replies 4 ·
Rotating and Nonrotating Rods Superposed
- PeachBanana
- · Replies 5 ·
Calculating Time for a Person Pulling a Lawn Mower
- zaddyzad
- · Replies 2 ·
How Can Precision and Setup Influence Metal Rod Mass Measurement Accuracy?
- DopplerFX
- · Replies 1 ·
Calculate the voltage drop of the train (Picture included)
- Simmer
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Finding Moments of a Beam: Where Did I Go Wrong?
- Spakfilla
- · Replies 2 ·
Simply supported beams bending moment
- stevemilw
- · Replies 8 ·
Finding speed and mass from kinetic energy and magnetic radius
- ChaseDuncan
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What Is the Hydrostatic Force on One End of a Tank Filled with Gasoline?
- sushifan
- · Replies 17 ·
Confirming Data Table for Mars Lander Speed-Time Graph
- jacknjersey
- · Replies 1 ·
Electric Potential, conducting sphere in a conducting shell
- fornax
- · Replies 21 ·
Why Are Initial Velocity and Position the Constants in Motion Equations?
- phys2
- · Replies 3 ·
Kirchoffs Law and simple circuit problem
- QuarkCharmer
- · Replies 6 ·
Calculating the work done during an isothermal expansion using integration
- bsmm11
- · Replies 2 ·
Calculating torque, force and angles
- Leata
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Conservation Laws in Lagrangian Mechanics
- Lengalicious
- · Replies 24 ·
Finding the magnetic field at a point with two wires.
- cndman
- · Replies 1 ·
Inelastic collision of two identical carts
- eagles12
- · Replies 26 ·
Why isn't linear momentum conserved?
- IntegrateMe
- · Replies 6 ·
Calculating Applied Torque for a Grinding Wheel
- PeachBanana
- · Replies 4 ·
Java calling methods: how do I use them?
- ProPatto16
- · Replies 9 ·
Finding Max Determinant of 6x6 matrix
- shiranian
- · Replies 2 ·
Superposition of harmonic oscillations
- Lengalicious
- · Replies 5 ·
Nit-Picky Questions on Induced EMF, and Electromagnetism in General
- pr33ch
- · Replies 2 ·
Resistors connected in parallel and series
- Cromptu
- · Replies 3 ·
Does an Inelastic Collision Affect Conservation of Mechanical Energy?
- eagles12
- · Replies 8 ·
How far does the putty-block system compress the spring?
- eagles12
- · Replies 5 ·
In which situation is the magnetic force nonzero?
- McAfee
- · Replies 2 ·
Finding angular velocity of a car and period of a planet's rotation
- mi-go hunter
- · Replies 2 ·
Particle Dynamics: Proving t(a) < t(b) for Two Masses Connected by a String
- nik jain
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What is the angle of static friction for two boxes with different masses?
- quakedude
- · Replies 2 ·
What is the Tension Force of a Swing Set at the Bottom of its Path?
- testme
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How Does Inductance Affect Light Dimming in AC Circuits?
- Sefrez
- · Replies 1 ·
Conservation of momentum vs conservation of kinetic energy
- eosphorus
- · Replies 18 ·
Momentum question involving an elastic collision
- Heron
- · Replies 6 ·
Thermodynamics: two pistons; different pressures, volumes, and temperatures
- Color_of_Cyan
- · Replies 3 ·
Noted and corrected, thank you!
- jacknjersey
- · Replies 2 ·
Velocity - time home work check
- jacknjersey
- · Replies 2 ·
Standing sound waves for fundamental and first two overtones
- chaotiiic
- · Replies 5 ·
How Fast Does the Tip and Center of Mass of a Falling Rod Travel?
- sweetpete28
- · Replies 1 ·
Adiabatic Expansion: Solving for Pressure and Volume
- bobsmith76
- · Replies 1 ·
Angular momentum of ball spinning on a pendulum around a support point
- Los Frijoles
- · Replies 1 ·
How Does an Ant Manage to Move a Caterpillar on an Inclined Plane?
- Koborl
- · Replies 5 ·
2D motion: frames of refrence: calculating velocity,heading and time
- rahrahrah1
- · Replies 1 ·
Why is the constraint force on a rotating rod in the radial direction?
- theBEAST
- · Replies 4 ·
Kinetic Energy of a Bowling Ball
- PeachBanana
- · Replies 3 ·
Solving a Monatomic Ideal Gas Expansion Problem
- VincentweZu
- · Replies 4 ·
Force Required by Rockets and Angular Acceleration
- PeachBanana
- · Replies 4 ·
Understanding Momentum and Conservation in Falling Balls
- Ereny
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What Is the Mass of the Second Ice Skater?
- eagles12
- · Replies 7 ·
Skier Going Uphill - Intro Physics Problem
- Roadman20
- · Replies 7 ·
Potential Energy of System (Uniform Rod and String)
- FeDeX_LaTeX
- · Replies 1 ·
How do you simplify the following expressions?
- hexhall
- · Replies 10 ·
Friction Force on Banked Curves
- jnlbctln
- · Replies 11 ·
Electric Field via partial derivative
- fornax
- · Replies 7 ·
What is the force exerted by a golf club on a ball in a typical swing?
- eagles12
- · Replies 3 ·
Vertical Displacement of Electron (Millikan's Oil Drop)
- honeybee63
- · Replies 1 ·
Conservation of Momentum in Different Frames of Reference
- quantised
- · Replies 1 ·
Rotational Plus Translational Motion for Sphere of Yarn
- sweetpete28
- · Replies 5 ·
How Do You Calculate the Moment of Inertia for a Wheel with Accelerating Mass?
- original
- · Replies 9 ·
Conservation of Momentum possibly?
- JuliusDarius
- · Replies 1 ·
Estimating current pulse duration and magnitude in Faraday's coil experiment
- black_hole
- · Replies 1 ·
How High Will Each Ball Swing After Elastic Collision?
- Mdhiggenz
- · Replies 2 ·
Angular and Linear Acceleration on a Wheel
- PeachBanana
- · Replies 2 ·
How to find the binding energy of a photon?
- Mayhem12
- · Replies 4 ·
Max speed of a car at a curve banked road.
- azizlwl
- · Replies 14 ·
Expressions for the energy density of electromagnetic waves
- 99wattr89
- · Replies 7 ·
A person moves a full sam's club shopping cart mass=80.0 kg from rest
- Ereny
- · Replies 1 ·
Net Magnetic Field at the Center of a Loop and X Distance Away From a Wire
- BornSurvivor
- · Replies 1 ·
Charging and Discharging capacitors
- whatwhatwhat
- · Replies 1 ·
Velocity and Loss in Energy onedimensional
- Nuingaer
- · Replies 1 ·
Baseball Pitch Momentum: Impact of Pitcher and Catcher on Ball's Momentum
- Ereny
- · Replies 1 ·
Elastic Collision or Inelastic Collision? Two balls colliding.
- testme
- · Replies 2 ·
Elastic Collision between billiard balls
- testme
- · Replies 4 ·