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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Rolling cylinder on an incline
- andrewp7
- · Replies 3 ·
Slide Block Problem With Strings
- Hypnos_16
- · Replies 1 ·
Calculating Bullet Velocity using Frictional Force and Block Displacement
- runningirl
- · Replies 1 ·
Angular momentum/ energy conservation.
- Roland of G
- · Replies 1 ·
Momentum conservation when Josh and Donna jump from a canoe
- runningirl
- · Replies 3 ·
Finding the Half Life From Activity
- Procrastinate
- · Replies 3 ·
Astronomy - interstellar dust grains
- accountkiller
- · Replies 4 ·
First law of thermodynamics problem
- XkitaX
- · Replies 2 ·
Work and efficiency for a pulley system lifting 100 N through 10 m
- thereddevils
- · Replies 6 ·
How Does the Dog's Movement Affect Its Distance from the Shore?
- VitaX
- · Replies 2 ·
Mechanics question. Person jumping off trampoline.
- Educated
- · Replies 3 ·
Calculate angle for least work done
- NewtonGalileo
- · Replies 4 ·
Angular Deceleration Calculation for Medical Lab Centrifuge
- ScienceGirl90
- · Replies 3 ·
Solve Friction Problem: Find Force P on 20kg Block on 30° Incline
- Patdon10
- · Replies 3 ·
Two carts and two masses on one ramp.
- Xarath
- · Replies 3 ·
Kinetic energy of positron/electron collision
- Kreamer
- · Replies 4 ·
Calculating Resultant Velocity for Long Distance Swimmers
- tychostar
- · Replies 1 ·
Hydrostatics - force on pistons in fluid
- Mandeep Deka
- · Replies 2 ·
Forced Oscillations (proving diff equation by subsitution)
- hjr
- · Replies 5 ·
Force of friction. Non conservation of energy
- anna sung
- · Replies 1 ·
How Do You Calculate the Coefficient of Static Friction on an Inclined Plane?
- Hypnos_16
- · Replies 2 ·
Finding coefficient of friction when 5 kg body starts sliding on 30° incline
- jaybabbar
- · Replies 2 ·
What is the Coefficient of Static Friction for a Crate on an Incline?
- Student3.41
- · Replies 2 ·
Heat transmitted in convection from a pipe
- Karol
- · Replies 3 ·
Why Is Speed Proportional to the Square Root of Time in This Physics Problem?
- NewtonGalileo
- · Replies 3 ·
What Is the Maximum Radius for a Loop So a Ball Stays on Track?
- pb23me
- · Replies 9 ·
Gravity on something with just about no information
- Hypnos_16
- · Replies 10 ·
Initial speed of cow fired from catapult with 1375 m range and 39 m drop
- DeerHunter
- · Replies 1 ·
Thin lense combined with a concave mirror
- hmsmatthew
- · Replies 5 ·
Center of Mass involving three cubes
- DLPhysics
- · Replies 1 ·
At what angle must a swimmer cross a river with a 3.5 m/s current?
- mikeh3593
- · Replies 9 ·
Student spinning with textbook at different distances
- primeboss
- · Replies 4 ·
What is the orbital speed of a satellite at a radius of 34 km?
- SamRosenblatt
- · Replies 1 ·
Will the Block Slide Down a 30° Ramp with High Friction?
- Kytte
- · Replies 2 ·
What is the speed of a pendulum at point D?
- Quark Itself
- · Replies 20 ·
Deceleration of block B sliding on block A on frictionless ice
- runningirl
- · Replies 8 ·
Kinematics Question (two objects thrown up)
- Kyleman
- · Replies 9 ·
How Do You Calculate Acceleration Due to Gravity at a Distance from Earth?
- Jyote25
- · Replies 2 ·
Radiation Levels: Inverse Square Law Outcome at 6m
- nonphysical
- · Replies 4 ·
Velocity of a tire rolling down the road
- preluderacer
- · Replies 6 ·
How do we find the equivalent voltage in a parallel circuit?
- hsnelect
- · Replies 2 ·
Which Bragg angle and order to use for solving d?
- cahill8
- · Replies 2 ·
Entropy change for supercooled cyclohexane at -20°C
- knowlewj01
- · Replies 3 ·
How Much Energy Is Needed to Move a 1kg Block Away from Earth?
- MillerGenuine
- · Replies 3 ·
Finding Time for a Wave on a Rope
- zorro
- · Replies 4 ·
How Do You Calculate Resistance in a Circuit Problem?
- hsnelect
- · Replies 10 ·
Alegbra of simple harmonic motion
- Clairepie
- · Replies 5 ·
Forces exerted on support rollers?
- iamasponge
- · Replies 1 ·
The period of a pulsating star with respect to the star
- ktdraho
- · Replies 3 ·
Finding Momentum with Uniform Magnetic Field: q, B, a, d
- Bhumble
- · Replies 3 ·
Masses in a Triangle - Gravitational Force
- Student3.41
- · Replies 8 ·
How Deep Must You Dive to Match Venus's Surface Pressure?
- lmannoia
- · Replies 3 ·
When do quantum effects become important?
- andyfry
- · Replies 3 ·
Calculating Net Work Done on a Man in a Wheelchair Climbing a Slope
- Matriculant
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Does Moment of Inertia Determine Mass?
- preluderacer
- · Replies 2 ·
SHM with 23cm amplitude at 55Hz: when does it reach 15cm?
- jimmy42
- · Replies 3 ·
Body movement question v(t), a(t), x(t)
- mystmyst
- · Replies 1 ·
Period of satellite in circular orbit
- bmoore509
- · Replies 7 ·
Potential at a point due to two charges
- 6Stang7
- · Replies 3 ·
Energy conservation of a sliding block
- simmonj7
- · Replies 6 ·
Converting rotational kinetic energy to power in watts
- Hanababa
- · Replies 10 ·
Finding alternative hole height for same projectile range using Bernoulli's equation
- panchoman
- · Replies 1 ·
Which object reaches the bottom of the ramp first, a cylinder or a sphere?
- preluderacer
- · Replies 1 ·
Direction of the friction force
- joej24
- · Replies 5 ·
Free Body Diagram of Pulley with Friction
- sean882
- · Replies 4 ·
Calculating Acceleration and Work for a Box on a Horizontal Surface
- kselanders
- · Replies 1 ·
Calculating the magnetic field inside a closed loop of wire
- aftershock
- · Replies 1 ·
Mechanical energy into thermal energy
- anna sung
- · Replies 1 ·
1800kg car at 35 km/h north hits 1100kg car at 45 km/h east
- ConstableZiM
- · Replies 2 ·
Translational and Rotaional motion
- Quincy
- · Replies 12 ·
How do you solve for t in the equation d=v1(t) + .5at2?
- homevolend
- · Replies 5 ·
Magnetic field of helmoholtz apparatus
- noname1
- · Replies 1 ·
Tension, A Rope with Mass problem
- k-rod AP 2010
- · Replies 2 ·
Net Force on 5kg Suitcase and Applied Force Calculation
- Hafsaaa
- · Replies 1 ·
How Does Lenz's Law Explain the Movement of a Loop Near a Current-Carrying Wire?
- joriarty
- · Replies 1 ·
Resultant of three coplanar forces: 100 N at 30°, 141.4 N at 45°, 100 N at 240°
- Chica1975
- · Replies 3 ·
Angular Momentum and Average Torque
- mohabitar
- · Replies 1 ·
Three Particles - Gravitational Force
- Student3.41
- · Replies 3 ·
Calculating Altitude Using Barometer and Thermometer Readings
- tweety1234
- · Replies 5 ·
Setup of a differential element on a propellor blade
- AlexChandler
- · Replies 4 ·
How to Determine the Net Force on the Sun in a Right Triangle Configuration?
- MozAngeles
- · Replies 2 ·
How Does Catching a Ball Affect the Angular Speed of a Merry-Go-Round?
- bewger
- · Replies 3 ·
How much does a person weigh on Mount Everest?
- droopster
- · Replies 10 ·
Conservation of Energy/Gravitational Potential Energy
- Dougggggg
- · Replies 2 ·
Calculating Tension in a Pulley System with Three Masses
- Anza Power
- · Replies 1 ·
Height needed for car to equal kinetic energy at 105 km/h
- kissafilipino
- · Replies 3 ·
Finding coordinates given 3-dimensional vectors
- mystmyst
- · Replies 4 ·
Rolling without slipping physics
- Phanatic 12
- · Replies 5 ·
Effect of mass, force, and gravity on acceleration of a block
- Jonathan Teas
- · Replies 6 ·
Calculating Power Output of Rotating Object with Mass M, Radius R, and Speed V
- Hanababa
- · Replies 6 ·
Pulley and blocks system with friction: energy method solution check
- salleyye
- · Replies 2 ·
An electron describing a helical path
- Alteron
- · Replies 1 ·
How Do You Calculate the Electric Field of a Finite Charged Slab?
- tomanator
- · Replies 1 ·
AC circuits, Inductance and phase shift.
- knowlewj01
- · Replies 1 ·
Can gravitational field strength equal the centripetal acceleration?
- TN17
- · Replies 1 ·
Sniper Fish's Projectile Motion
- JamesPKing
- · Replies 1 ·
How Fast Does a Book Fall from 4.20 Meters?
- kissafilipino
- · Replies 3 ·
What is the magnitude of the frictional force acting on the crate?
- moondawg
- · Replies 3 ·
How Does Pulling a Chain Affect Its Thermal Energy?
- soccerguy
- · Replies 2 ·
Finding radius of a loop using impulse and momentum
- dragonfall122
- · Replies 4 ·