Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
How Is Work Done by Friction Calculated for a Crate Pulled at a Constant Speed?
- JSmith2009
- · Replies 1 ·
Find masses on an equilibrium plane
- Naldo6
- · Replies 1 ·
Finding Velocity given x and y velocities
- MrMiguel
- · Replies 2 ·
A couple Force, work, KE, and spring problems I'm working on.
- raven2783
- · Replies 3 ·
Sign conventions for weight components on a frictionless incline
- korters
- · Replies 1 ·
Floating test tube oscillating on water: finding the period
- Hareesh
- · Replies 2 ·
Physics olympiad - electrostatics
- alexmahone
- · Replies 32 ·
A Problem on Simple Harmonic Oscillations
- Hareesh
- · Replies 1 ·
Problem related to Simple Harmonic Oscillations
- Hareesh
- · Replies 4 ·
Solving Horizontal Rifle Bullet Gravity Problem
- nasjo30
- · Replies 1 ·
Relative speed between two objects
- Husker70
- · Replies 1 ·
How Do I Solve Energy and Conservative Forces Problems?
- zoner7
- · Replies 12 ·
Angular Velocity on a circular platform
- Naldo6
- · Replies 3 ·
Angular motion problem (wheels on a car coming to a stop)
- xregina12
- · Replies 1 ·
What is the momentum at its maximum height?
- redhot209
- · Replies 1 ·
How Do Newton's Laws Apply to These Real-World Physics Problems?
- nns91
- · Replies 24 ·
Find the kinetic energy stored in the flywheel
- persephone
- · Replies 3 ·
How Much Force to Slide a 10 kg Box with Friction?
- lxared
- · Replies 2 ·
Torsion - Coupling connecting two shafts
- Tom McCurdy
- · Replies 1 ·
Speed and direction of clay balls after inelastic collision
- Nulligan
- · Replies 1 ·
Ball falling on to parabolic track
- jemstone
- · Replies 3 ·
Effect of Two Springs on an Object
- jemstone
- · Replies 3 ·
Finding average force on shoulder from 30-06 rifle recoil
- redhot209
- · Replies 1 ·
Projectile motion radar antenna
- physics0926
- · Replies 1 ·
Projectile Motion of golf chip shot
- bkoiskewl1
- · Replies 3 ·
Effect of Dielectric Material on Electric Field in a Parallel Plate Capacitor
- Sheneron
- · Replies 6 ·
Work-Energy Theorem: Calculating Work Done on a Sliding Block
- kmikias
- · Replies 5 ·
Calculating Force for Uniform Deceleration in a Mass-Force Relationship
- redhot209
- · Replies 4 ·
How Much Force to Move a 150 kg Crate on Different Friction Surfaces?
- bmandrade
- · Replies 9 ·
Solving Two Veggie Patties Physics Problem
- vpv
- · Replies 5 ·
Calculating Power of DC-3 Airplane Takeoff: 9500 kg Mass, 110 km/h Speed
- nm12182
- · Replies 1 ·
What is the Work Done on a Carton on an Inclined Ramp?
- SuPaFly43218
- · Replies 3 ·
Twin Paradox and Time Travel (Special Relativity)
- scurry18
- · Replies 5 ·
Finding the Critical Velocity for Special Relativity Effects
- scurry18
- · Replies 4 ·
Gaussian Cylinder Electric Field and Net Charge Calculation
- Doc Z
- · Replies 19 ·
Object launched from Mars - finding initial velocity given final velocity
- soupastupid
- · Replies 3 ·
Does Equal Kinetic Energy Imply Different Momenta for Cars with Varying Masses?
- avenkat0
- · Replies 8 ·
Block colliding with movable ramp
- ionic_scream
- · Replies 1 ·
Man pulling himself up a rope over a tree branch
- eatingblaa
- · Replies 11 ·
Braking Distance Increase Factor w/ 50% Speed Increase
- sugarntwiligh
- · Replies 2 ·
Finding maximum distance h for 7 kg block falling over pulley with spring and friction
- duketogo
- · Replies 2 ·
Work done by force Fx = Cx³ on 1.5 kg particle
- maniacp08
- · Replies 1 ·
Impulse in Inelastic Collisions
- avenkat0
- · Replies 13 ·
How Does Wind Affect the Maximum Roundtrip Distance of a Jetliner?
- pippintook
- · Replies 1 ·
Total induced emf at different speeds
- cryptoguy
- · Replies 4 ·
How Does Bohr's Atomic Model Address Electron Energy Loss?
- Ahsan Khan
- · Replies 2 ·
Magnetic Moment, Electron Spin, Energy
- roeb
- · Replies 1 ·
What is the Angular Velocity of the Runner and Turntable System?
- anubis01
- · Replies 2 ·
Tension between two accelerating forces.
- Notyou
- · Replies 10 ·
Calculating decay constants and half-life
- Steph191290
- · Replies 9 ·
What is the Magnitude of Frictional Force with Varying Applied Forces?
- hansel13
- · Replies 3 ·
Energy of one mole of 570 nm photons in kilojoules
- lucky_star
- · Replies 4 ·
Finding semi-major axis and aphelion of a comet with 100-year period
- myoplex11
- · Replies 1 ·
Biot-Savart Law (infinite filament)
- gsan
- · Replies 2 ·
Conservation of momentum (neuclear decay)
- avenkat0
- · Replies 7 ·
Measuring Potential Difference Across 4.5kOhm Resistor w/ Voltmeter
- physstudent1
- · Replies 1 ·
How Did the Father Match His Son's Kinetic Energy After Speeding Up?
- netrunnr
- · Replies 1 ·
How Do You Calculate Angular Acceleration from Initial Speed and Angle Change?
- xregina12
- · Replies 1 ·
Calculating Normal Force on Pilot in Air Show Loop
- myoplex11
- · Replies 1 ·
How much mechanical work was done by 2 men lifting a boat 24 times?
- maxdaddy
- · Replies 3 ·
How Does a Mass and Spring System Behave on an Inclined Plane?
- besenji
- · Replies 1 ·
Momentum of an explosion problem. Desperately
- Alphonso
- · Replies 1 ·
How Do You Calculate Earth's Angular Velocity in Its Orbit?
- ch2kb0x
- · Replies 1 ·
Coefficient of kinetic friction for spring-block system
- besenji
- · Replies 1 ·
Is a Constant Force Always Conservative?
- zoner7
- · Replies 1 ·
Rocket-propelled box accelerating on horizontal surface
- FEMA
- · Replies 1 ·
Electric potential due to line of charge
- stickyrice581
- · Replies 4 ·
Gauss's Law to Symmetric Charge Distribution
- magda3227
- · Replies 6 ·
Planet Motion: Calculate Star Mass
- myoplex11
- · Replies 1 ·
Side length of equilateral triangle inscribed in circle of radius 2.9 m
- kmiller
- · Replies 1 ·
Spreadsheet integration of coupled differential equations for cos and sin
- fk378
- · Replies 8 ·
Is a Central Force Always Conservative?
- subwaybusker
- · Replies 1 ·
Power of Elevator: Calculating Motor Power Needed
- blayman5
- · Replies 1 ·
Magnetic flux in a straight wire to a cylinder
- goWlfpack
- · Replies 3 ·
How Does Earth's Magnetic Field Flux Change with Loop Orientation?
- goWlfpack
- · Replies 3 ·
Conservation of energy involving spring and friction
- IniquiTrance
- · Replies 1 ·
Thermal expansion, percent change in density problem
- ctpengage
- · Replies 2 ·
Solving a Kinetic Energy Conceptual Question: 0.5m * v^2?
- netrunnr
- · Replies 5 ·
Thermal Energy dissapated from brakes.
- besenji
- · Replies 4 ·
Find the boat's speed as a function of time
- khdani
- · Replies 2 ·
How is thermal energy affected by friction on an inclined plane?
- mystic3
- · Replies 5 ·
Estimating Mass of the Milky Way Galaxy
- myoplex11
- · Replies 3 ·
Calculating the Radius of a Geosynchronous Satellite Orbit Around Earth
- aligass2004
- · Replies 3 ·
Where Will a Falling Particle Leave a Sphere with No Friction?
- fluidistic
- · Replies 5 ·
How Is Tension Calculated in a Pulley System with Unequal Masses?
- Notyou
- · Replies 1 ·
Dimensional analysis to determine unknown exponents
- Vasili
- · Replies 1 ·
How to build a cart that moves from suspended mass
- DylanMX
- · Replies 3 ·
Which Energy Levels in Hydrogen Produce the Red Line?
- catkin
- · Replies 5 ·
Mass of a ball with different density
- asi123
- · Replies 6 ·
Why does |dl × R| become dl in this formula?
- gsan
- · Replies 20 ·
Solve the equation vf = vi + at for acceleration
- joykizz_16
- · Replies 3 ·
Calculating Moment of Inertia at Point A
- asi123
- · Replies 8 ·
Why is the force minimum when torques balance?
- asi123
- · Replies 2 ·
Refraction Problem: Find Angles with Triangles
- khoais
- · Replies 5 ·
Surface charge density of Styrofoam
- Gear300
- · Replies 6 ·
Block held against wall, force problem
- azure kitsune
- · Replies 3 ·
Circular Motion Problem: Solving for Revolutions with Constant Acceleration
- mjolnir80
- · Replies 2 ·
Is Your Thermodynamics Exam Coming Up?
- PeterSK
- · Replies 2 ·
What Is the Magnetic Force Per Unit Length on a Wire in a Bundle?
- Ithryndil
- · Replies 2 ·
Deleted data recovery question
- wolffbite
- · Replies 1 ·