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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Calculating Sputnik I's Orbital Period
- uno
- · Replies 5 ·
Finding Velocity at a Given Time on an Acceleration v Time Graph
- ch2kb0x
- · Replies 4 ·
When and where will the collision occur in a one lane tunnel?
- steph35
- · Replies 1 ·
Finding position given displacement, velocity
- steph35
- · Replies 1 ·
Conservation of Momentum and KE (bullet through a pop can)
- CaptainSFS
- · Replies 2 ·
Angular Magnification of Microscope
- LeeLoo
- · Replies 1 ·
Calculating Force to Propel Boat Across Shallow Lake
- ^Kris
- · Replies 9 ·
Calculate the work done by friction of package
- veronicak5678
- · Replies 2 ·
Rotational motion of a computer hard disk
- sktgurl930
- · Replies 4 ·
Finding Tension in a String Holding a Meter Stick Against a Wall
- proace360
- · Replies 5 ·
Where does gravitation of earth and sun cancel
- robvba
- · Replies 7 ·
Statics: Equilibrium and circular lawn roller
- TranceMaster
- · Replies 1 ·
Finding the diameter of a coil.
- cds5615
- · Replies 5 ·
How to Determine the Masses of Objects from an Acceleration vs. Force Graph?
- ScullyX51
- · Replies 1 ·
Block Projected up Plane with Spring atop
- PatrickR.
- · Replies 2 ·
How Do Final Speeds of Two Balls Compare When Thrown from a Building?
- aquapod17
- · Replies 1 ·
Determining Velocity and Acceleration for a Moving Particle
- ritwik06
- · Replies 1 ·
Find the magnitude of the speed
- ScullyX51
- · Replies 2 ·
How can I find the angle between the 3d vector & x-axis ?
- @ADAMS@
- · Replies 3 ·
The coefficient of sliding friction from a static start.
- damianov
- · Replies 2 ·
Remote Control Overhanging Table
- proace360
- · Replies 3 ·
Finding Velocity on a Circular Amusement Park Ride
- joeth04
- · Replies 2 ·
Momentum of Astronaut Throwing Apples in Space
- edowuks
- · Replies 3 ·
Solve MATLAB Question: Plot Normal Distribution on Histogram
- coffeem
- · Replies 3 ·
2D Projectile Motion - Minimum Speed
- stickyriceyum
- · Replies 1 ·
Work on Block with an opposing force
- Ltcellis
- · Replies 3 ·
Finding the frequency of a subatomic particle in motion?
- Loaded
- · Replies 3 ·
Tension on a rope with significant mass
- RafaFutbol
- · Replies 1 ·
Diffraction grating wavelength problem
- bcjochim07
- · Replies 10 ·
Finding m2 in Atwood's machine to measure g with 5% accuracy
- bollocks748
- · Replies 1 ·
Calculating Decay Rates of a Nucleus with 2 Channels
- anizet
- · Replies 9 ·
Free-body diagram for an electron orbitting a proton.
- seanboy
- · Replies 7 ·
Maximum and minimum values of a force to keep a block pinned.
- DocZaius
- · Replies 6 ·
Solving for Horizontal Distance and Time in a Vertical Drop Problem
- chanv1
- · Replies 7 ·
Net force, force diagrams, normal force
- ctpengage
- · Replies 6 ·
One more quick convervation of energy problem
- crimsonn
- · Replies 1 ·
Rotational Inertia of Solid Disk
- Kickbladesama
- · Replies 1 ·
Window washer pulling herself up with a pulley system
- I_LuV_FiZiX
- · Replies 3 ·
Circular Motion Without Gravity- Calc Based
- bollocks748
- · Replies 3 ·
Energy conservation with a projectile -
- pinkerpikachu
- · Replies 1 ·
Determine the tangential and radial acceleration of the car
- kblue!1
- · Replies 4 ·
Conical pendulum: finding mass, speed, frequency and trajectory
- crhscoog
- · Replies 1 ·
Calculating the Maximum Displacement of Kate's Bungee Jump
- cj3
- · Replies 1 ·
Work done by jet engines and catapult during 17000 kg carrier launch
- Symstar
- · Replies 2 ·
Force vs Time Collision: Find Speed of 66-g Tennis Ball
- bkhofmann
- · Replies 5 ·
Solve Problem with Density: Find Object's Density
- yoleven
- · Replies 3 ·
Calculating Time to Overtake a Satellite in Orbit
- Symstar
- · Replies 2 ·
How Fast Does a 2100kg Block Travel After 3900J of Work?
- xregina12
- · Replies 5 ·
Finding the rarer carbon isotope mass in a mass spectrometer
- azhoops
- · Replies 2 ·
Finding Force via Static Friction
- xthursday
- · Replies 2 ·
Thermodynamics (heat loss problem)
- snowsquirrel1
- · Replies 1 ·
Calculating Gravitational Force with Universal Gravitation Formula
- uno
- · Replies 2 ·
How Long to Overtake at Different Speeds?
- meredith
- · Replies 1 ·
Gravitation - Satellite in circular orbit
- atavistic
- · Replies 3 ·
Conceptual question: light bulbs in simple DC circuits
- apocrypha
- · Replies 2 ·
Acceleration and tension for two blocks connected to frictionless pulley
- lil2ishaq
- · Replies 3 ·
Find Capacitance From Charged Capacitors
- McCoy13
- · Replies 2 ·
What Initial Height Ensures a Block's Force Equals Its Weight at the Loop's Top?
- diablo2121
- · Replies 1 ·
Average speed for round trip at different speeds
- steph35
- · Replies 1 ·
Bernoulli's equation limitations?
- madchemist
- · Replies 8 ·
Elevator Acceleration Calculations
- physics111
- · Replies 4 ·
Solving Free Falling Objects Problem
- steph35
- · Replies 1 ·
Rope, tension and Newtons third law
- DakE_FeatH
- · Replies 6 ·
Needed Power Output on an Incline
- akfortyseven
- · Replies 2 ·
Pushing a Lawnmower: Find tanθ_critical
- phthiriasis
- · Replies 2 ·
Finding magnitude of displacement vector
- ilovedeathcab
- · Replies 1 ·
Calculating Force in a Rifle-Bullet System
- *intheclouds*
- · Replies 2 ·
Standing wave velocity/acceleration
- Shlllink
- · Replies 2 ·
At what angle does a box start sliding on a ramp with friction coefficient 0.30?
- dubversion11
- · Replies 1 ·
What Force Does the Right Block Apply to the Left Block?
- zoner7
- · Replies 5 ·
Question About A Simple Formula
- getfirefox
- · Replies 1 ·
Finding the Speed of a Falling Elevator with a Spring and Frictional Force
- big_easy7
- · Replies 15 ·
10 kg cart pulled with varying forces over 10 m, finding work and friction coefficient
- needhelp4rmu
- · Replies 5 ·
Gravitational potential energy of a hanging ball relative to its own height
- xregina12
- · Replies 5 ·
Finding the third force when an object is in equilibrium with 28-N and 65-N forces
- haleyscavone
- · Replies 2 ·
What is the quality factor Q in forced oscillations?
- benedictes
- · Replies 2 ·
Why solve for gamma to travel to another galaxy alive
- esb08
- · Replies 4 ·
Force problem involving two pulleys and three masses
- humbucker740
- · Replies 1 ·
Conservation of Energy roller-coaster car
- maniacp08
- · Replies 3 ·
Piano string tension adjustment for frequency difference of 1.5 Hz
- isisfierce
- · Replies 4 ·
Football Problem: Calculating Ball's Clearance over Goal Post
- chanv1
- · Replies 2 ·
How Do You Calculate the Force Needed to Accelerate an Electron?
- crimsonn
- · Replies 2 ·
Simple Harmonic Oscillation Frequency in a Traveling Car
- sru
- · Replies 1 ·
Linear momentum handball problem
- beastysk8er
- · Replies 1 ·
Tension woes simple mass problem
- veitch
- · Replies 1 ·
Tension of 2 Ropes Find the Angle
- diablito25
- · Replies 10 ·
Solving Problems with Newton's Laws - Hanging Chandelier
- tiggrulz13
- · Replies 5 ·
Solving Chandelier Tension Problem: Find T1 Expression without T2
- Amria
- · Replies 3 ·
Work Done by Force from 0 to 2 m - 20.4J
- maniacp08
- · Replies 7 ·
Gravitational potential energy of satellites
- pbumper1
- · Replies 3 ·
What is the velocity of raindrops in two reference frames?
- chanv1
- · Replies 2 ·
Tension on a wire with equal angles
- nicolette2413
- · Replies 2 ·
How Much Work Does It Take to Pull a Skier Up a Slope?
- scurry18
- · Replies 1 ·
Calculating Net Force on Boxes of Different Masses in Contact
- harrycc
- · Replies 2 ·
Tension in a wire, length change
- CINA
- · Replies 1 ·
Can a Third Charge Achieve Zero Potential Between Two Unequal Charges?
- jaejoon89
- · Replies 5 ·
Clocks out of Sync (Special Relativity)
- Fusilli_Jerry89
- · Replies 7 ·
Calculate Displacement in a Police Car Scenario: Juction 4 to Accident
- e-me
- · Replies 3 ·
Train Acceleration on Sharp Turn
- chanv1
- · Replies 12 ·
Centripetal Force and maximum force
- uno
- · Replies 5 ·