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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Potential inside sphere with empty cavity
- bfusco
- · Replies 2 ·
Collision of ball with inclined plane problem
- coldblood
- · Replies 8 ·
Angular Velocities using Relative Velocities
- sakau2007
- · Replies 7 ·
Geothermal heat extraction math problem
- courtneywetts
- · Replies 19 ·
Mass on Pulley problem need to find angular acceleration
- nickb145
- · Replies 21 ·
John Taylor Classical Mechanics Chapter 3, Problem 7
- karmonkey98k
- · Replies 1 ·
Torque and work to accelerate an electric trimmer blade to 605 rpm
- nickb145
- · Replies 6 ·
Problem with rotational torque and angular acceleration
- Loopas
- · Replies 10 ·
Calculating Angular Velocity at the End of a Time Interval
- hoxbug
- · Replies 1 ·
Heat and pressure in sealed steam container with constant volume
- TheBelgiumWaff
- · Replies 2 ·
Angular ,Radial,linear accelerations
- RevX
- · Replies 5 ·
Electric Field at a point inside 2 semi circles
- A Shoto
- · Replies 2 ·
Speed of 1.67 kg object struck by stick with time-varying force
- oneamp
- · Replies 6 ·
What is the Temperature at which the Gap Between Two Bars will be Closed?
- BOAS
- · Replies 4 ·
Finding initial speed for Saturn escape with final speed of 28 km/s
- MAC5494
- · Replies 1 ·
Magnitude of magnetic field at the center of a semi-circle
- nuagerose
- · Replies 11 ·
Acceleration of a wire inside a magnetic field
- kopinator
- · Replies 5 ·
How Is the Spring Constant Calculated for an Acrobat's Safe Landing?
- tartio
- · Replies 1 ·
Find the Maximum Charge of a Capacitor
- jvdamdshdt
- · Replies 6 ·
A car with a mass of 1800 kg slows from 42 km/h [E] to 28 km/h [E].
- CabalGroupie
- · Replies 2 ·
ChetFinding the Center of Mass of a Figure with a Circular Cutout
- vac
- · Replies 17 ·
Confusion in centre of gravity and centre of mass differentiation
- coldblood
- · Replies 8 ·
Calculus Problem: Solving for t Given x=6.1
- jeremy5561
- · Replies 2 ·
Finding final temperature when ideal gas pressure and volume change
- astru025
- · Replies 1 ·
Two blocks sliding down an incline
- oneamp
- · Replies 3 ·
Newton's Laws: Book-Table-Earth
- mjm3
- · Replies 1 ·
Can Lance Armstrong Beat a Healthy Young Male in a Hill-Climbing Bike Race?
- jpark31
- · Replies 2 ·
Newtons Laws, Finding tension in the tow cable and foce
- mjm3
- · Replies 6 ·
Point mass in a (non-hyperbolic) paraboloid.
- Lavabug
- · Replies 19 ·
How Far Is the Crab Nebula from Earth?
- Daniel Luo
- · Replies 11 ·
Can two waves with different amplitudes form a standing wave?
- nil1996
- · Replies 7 ·
What happens when two objects collide?
- zpodnisn
- · Replies 2 ·
Aluminium Block immersed in water beaker
- k31453
- · Replies 1 ·
Diffraction from a single slit, with Lens
- JosephK
- · Replies 3 ·
Skateboarding Down a Ramp: Finding Speed at Bottom
- sallychan
- · Replies 1 ·
Energy conversion efficiency of each bounce
- postie
- · Replies 1 ·
Dynamics Question Involving two blocks on a plane
- James 94
- · Replies 1 ·
Speed vs acceleration in a race: which matters more over time?
- AFSteph
- · Replies 3 ·
Kinetic energy problem during collision
- coldblood
- · Replies 9 ·
How Do You Calculate Final Velocities in a Two-Mass Elastic Collision?
- davev
- · Replies 3 ·
Ice cream falling on escalator at mall
- Nax
- · Replies 2 ·
Acceleration of centre of mass problem
- coldblood
- · Replies 2 ·
Collision of multiple particles
- coldblood
- · Replies 2 ·
How Do You Calculate Minimum Constant Acceleration for a Jumbo Jet Takeoff?
- Physicsnoob90
- · Replies 2 ·
How to Solve a Liquid-Floor Collision?
- coldblood
- · Replies 24 ·
Why Might Option B Be Correct in This Collision Problem?
- coldblood
- · Replies 3 ·
Attraction of -Q to +Q in x and y directions
- Violagirl
- · Replies 1 ·
Potential due to Electromagnetic field
- spark693
- · Replies 7 ·
The relationship between time taken per oscillation and mass
- WaterMelllon1
- · Replies 3 ·
How to Calculate the Mass of the Left Block in a Pulley System?
- oneamp
- · Replies 3 ·
How Is Average Force Calculated in a Football Collision?
- woaini
- · Replies 3 ·
Find magnification of a fish in a fish bowl
- MrMoose
- · Replies 1 ·
Finding the tension in a pulley that rotates
- PhyIsOhSoHard
- · Replies 1 ·
How Do You Derive the Axes of a Kepler Orbit from Its Equation?
- Emspak
- · Replies 1 ·
How to Determine Power Output and Energy Storage Over Time?
- awais1985
- · Replies 12 ·
Object slides down frictionless ramp. Find acceleration.
- fergus123
- · Replies 3 ·
Pendulum with initial speed at 30°: why is my energy calculation wrong?
- 386221
- · Replies 10 ·
Magnitude of force on electron in magnetic field
- jaydnul
- · Replies 3 ·
Understanding Spring Force and Potential Energy on a Tilted Ramp
- Zyrn
- · Replies 2 ·
Calculate Mass Lost Burning 1 Gallon of Gas
- 462chevelle
- · Replies 9 ·
How Does the Period of a Spinning Disk Pendulum Change?
- Saitama
- · Replies 22 ·
How Do You Calculate Cable Length and Vector Forces in Statics?
- sevag00
- · Replies 15 ·
Find index of refraction of a sphere given the beam path
- MrMoose
- · Replies 1 ·
Question: How do I account for the wire below the loop when finding net torque?
- nuagerose
- · Replies 1 ·
Why does adding an electron to a 2.1 aF capacitor give zero energy change?
- member 422733
- · Replies 4 ·
Bernoulli's Equation and pipe reducer
- Nirupt
- · Replies 10 ·
Pressure and Temperature proportionality.
- SherlockOhms
- · Replies 6 ·
How Fast is the Rocket Traveling According to Earth's Time Reference?
- PsychonautQQ
- · Replies 6 ·
Which formula should I use to calculate the force needed to stretch a wire?
- anthonyk2013
- · Replies 15 ·
Variable acceleration and terminal velocity
- abdo799
- · Replies 11 ·
Conservation of Momentum of railway gun
- xdctassonx
- · Replies 1 ·
Find energy threshold from a proton collision
- oddjobmj
- · Replies 18 ·
Work done by force, friction, and gravity on a trunk pushed up a 28° incline
- zaddyzad
- · Replies 18 ·
Calculating Velocity of Particles with Given Energy in Special Relativity
- PsychonautQQ
- · Replies 6 ·
Optimal Launch Speed for Swinging Across a Ravine
- Iconic
- · Replies 2 ·
What is the force and recoil problem for Bob throwing a rock at 30 m/s?
- vac
- · Replies 9 ·
How Do You Derive Irreversible Adiabatic Work Equations?
- speny83
- · Replies 1 ·
Pulling mass with motor through pulley (with mass)
- Esoremada
- · Replies 1 ·
Can Induced EMF Be Greater Than Actual EMF and Create Opposing Currents?
- judas_priest
- · Replies 1 ·
Magnetic Field at Center of Single Coil-Loop
- kopinator
- · Replies 1 ·
Method to produce and measure velocity of a standing wave
- Rampant
- · Replies 1 ·
Electronic transition; Emission Spectra
- Qube
- · Replies 1 ·
Nanoscale electronics and impulse force
- xdctassonx
- · Replies 2 ·
At what angle must water balloons be launched to just graze a 3.3 m ceiling?
- mithilsheth
- · Replies 18 ·
Solve Ball's Acceleration: Vectors, 35m/s, 30m/s, 0.005s
- ahmed1237
- · Replies 4 ·
Package Dropped On A Conveyor Belt
- RandyRanderson
- · Replies 1 ·
Amusement Park Ride, Find Velocity at Point C
- jlewallen18
- · Replies 2 ·
How high will the pendulum rise?
- tbdm
- · Replies 2 ·
Dynamics - Using the coefficient of friction
- K.QMUL
- · Replies 1 ·
What is the weight of this bucket after time?
- Matriculator
- · Replies 1 ·
Dynamics Question: Calculate Resistive Force on Car
- K.QMUL
- · Replies 1 ·
Calculating Current in a Suspended Copper Wire System
- jvdamdshdt
- · Replies 9 ·
Which of the arrangements of two compasses shown in the figure is a
- outxbreak
- · Replies 4 ·
How Does Observer Motion Affect SHM Period Perception?
- PsychonautQQ
- · Replies 2 ·
Coefficient of static friction calculation
- Tepictoc
- · Replies 4 ·
Two bulbs connected by a tube with two mercury threads
- coconut62
- · Replies 10 ·
Induction Problem Related to Cars
- NasuSama
- · Replies 2 ·
Spring - Pulley - Mass system. Proving omega is a certain value
- Anavra
- · Replies 1 ·
Ball swinging from a rope - Net force and curved path
- jbow615
- · Replies 4 ·
How Much Force is Needed to Raise a Block on a Frictional Wedge?
- amal
- · Replies 7 ·