Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Normal Force between accelerating blocks
- disque
- · Replies 8 ·
Finding resultant force from two dogs pulling at 59 degrees
- spacecadette
- · Replies 13 ·
Solving Parabolic Problem from Giancoli Physics 6th Edition Ch. 3
- doogerjr
- · Replies 7 ·
How can the pilot reach his original destination after encountering bad weather?
- JJ91284
- · Replies 5 ·
Franklin's lightning bells. Easy Question.
- shimizua
- · Replies 1 ·
Potential Energy of a child on a swing
- lguer47860
- · Replies 6 ·
Force and Simple Dynamics: Pushy Astronaut
- mrnastytime
- · Replies 2 ·
Determine a rocket's altitude; how long rocket is in air
- tatertot560
- · Replies 15 ·
Charged pellet accelerating between parallel plates
- lmlgrey
- · Replies 1 ·
Pressure difference between aorta and aneurysm
- dcramps
- · Replies 2 ·
Chebychev's Theorem: Old Faithful Geyser at Yellowstone
- slimrs13
- · Replies 1 ·
What is the final velocity of a watercraft with 2-dimensional acceleration?
- chris097
- · Replies 5 ·
Sports car braking acceleration and cliff height from sound delay
- AbbyGirl
- · Replies 1 ·
Inelastic collision of a projectile with a pendulum
- mjolnir80
- · Replies 2 ·
Finding gas temperature in isothermal compression with work done
- keemosabi
- · Replies 3 ·
Calculating point charges and ratio of electrostatic force to weight
- zooboodoo
- · Replies 1 ·
Electrical fields between two objects
- cougarsoccer
- · Replies 1 ·
Two Infinite Non-Conducting Planes
- blueskadoo42
- · Replies 3 ·
Bernoulli's Equation and venturi meter
- keemosabi
- · Replies 3 ·
Calculating Moment of Inertia and Frictional Torque for Rotating Wheel
- nns91
- · Replies 15 ·
Fluids at Rest: Calculating the Force Required to Hold Wood Underwater
- arpitm08
- · Replies 5 ·
Finding zero net force between two charges
- kam761
- · Replies 7 ·
Two problems gettin on my nerve
- O.J.
- · Replies 8 ·
Center of Mass and Linear Momentum of pellet gun
- michaelmayhem
- · Replies 8 ·
What Is the Realistic Horsepower of a Truck Climbing Rabbit Ears Pass?
- pippintook
- · Replies 1 ·
Solving Quadratic Equation: Find the Time
- intenzxboi
- · Replies 5 ·
Solve Acceleration Due to Gravity on Distant Planet
- Malaya
- · Replies 2 ·
Skier on 35° incline with friction: finding acceleration and time
- beamerrox
- · Replies 1 ·
Critical angle/ last angle of refraction
- davidelete
- · Replies 6 ·
What Mass Can a Bug Have to Maximize Stress on a Spider Web?
- dimpledur
- · Replies 5 ·
Significant figures for subtraction and division
- myxomatosii
- · Replies 1 ·
Finding lever angle from moment magnitude about point A
- jonnyboy
- · Replies 3 ·
Accelerating Ions through semicircular plates
- tmvphil
- · Replies 1 ·
Static and Kinetic Friction Forces (Finding Net Force)
- FAJISTE
- · Replies 10 ·
What happens to a light bulb when an RC circuit switch opens?
- ncm2
- · Replies 4 ·
How Do You Calculate the Area of a Gold Leaf and the Length of a Gold Fiber?
- P.O.L.A.R
- · Replies 8 ·
Finding where Magnetic Fields = 0
- nmacholl
- · Replies 1 ·
How to Find Force Given Mass, Distance, Angle, and Velocity?
- kuhawkfan25
- · Replies 10 ·
Critical angle for total internal reflection at glass-water interface
- davidelete
- · Replies 6 ·
Max Mass of Carpenter to Keep Table Upright: Fnet=ma #15
- dtl42
- · Replies 1 ·
Thermodynamics ice cube question
- physics_geek
- · Replies 5 ·
Canoeing: Speed Relative to Water and Shore
- Breaststroke2
- · Replies 3 ·
Calculating Height Using Elastic Potential Energy
- kuhawkfan25
- · Replies 6 ·
Vectors, magitude, scalar components
- brittbc
- · Replies 1 ·
Projectile motion cannonball problem
- maobadi
- · Replies 1 ·
Calculating Work Required to Move a Charge Between Two Identical Charges
- cashmoney805
- · Replies 5 ·
What is the Maximum Acceleration of a Mass Attached to a Vertical Spring?
- adashiu
- · Replies 6 ·
What is the Torque on Point A?
- OneCosmicGuy
- · Replies 11 ·
Finding X components for instantaneous velocity with points on a graph
- NEAnderson90
- · Replies 1 ·
What Happens to an Insulator When a Charged Metal Ball Approaches?
- fwFAWFSERG
- · Replies 1 ·
How Do You Calculate Wave Speed and Frequency in Water and Sound Waves?
- ahrog
- · Replies 1 ·
How Long Does It Take to Hear a Stone Hit the Bottom of a Shaft?
- ahrog
- · Replies 3 ·
Spring and electrostatic forces
- Krique
- · Replies 2 ·
Finding g from a 2.00 m pendulum making 84.5 oscillations in 4 minutes
- ahrog
- · Replies 3 ·
How to draw electric field around neutral object, dipole, and charged object
- yalublutebya
- · Replies 1 ·
Projectile with fixed angle and tripled velocity
- enantiomer1
- · Replies 1 ·
What Are Key Questions About Light Refraction and Wavelength?
- patriots1049
- · Replies 6 ·
Finding resultant force from two forces in quadrants II and III
- spokorne
- · Replies 7 ·
Kinematics question centripedal acceleration and projectile motion
- reb659
- · Replies 3 ·
What Is the Centripetal Acceleration at Different Points on a Rotating CD-ROM?
- luap12
- · Replies 3 ·
When does an object return to initial position from a velocity graph?
- yayitsrobby
- · Replies 7 ·
Heat Tranfer Problem with Varying Temperature
- tejas710
- · Replies 1 ·
How Does Temperature Affect the Diameter of a Hole in an Aluminum Plate?
- Brit412
- · Replies 1 ·
2007 F=ma Physics Olympiad test problems (questions 1–27)
- myanmar
- · Replies 2 ·
Need kinematic formulas and how to find ledge height from falling boulder
- examhelp!
- · Replies 2 ·
Finding Equilibrium Charge: Solving for the Number of Electrons Transferred
- pghjenn19
- · Replies 3 ·
Calculate Acceleration of object in Circular motion
- Jordash
- · Replies 1 ·
Relatvitiy - Spaceship traveling into Galaxy
- Nitric
- · Replies 5 ·
Introduction to Physics HELP. I AM LOST
- cashboxz01
- · Replies 8 ·
Dinstance traveled with a constant force?
- disque
- · Replies 3 ·
How Long Does a Projectile Take to Reach the Valley Floor?
- Jordash
- · Replies 4 ·
Proton and electron released at midpoint of capacitor
- Hannisch
- · Replies 5 ·
Thermal Expansion of a steel plate
- Brit412
- · Replies 4 ·
What is the Minimum Force to Move Two Connected Bars on a Frictional Surface?
- cordyceps
- · Replies 4 ·
How to Calculate Electric Field of Half Spherical Shell with Gauss Law?
- asi123
- · Replies 4 ·
Electric field and charge enclosed
- 2Pac
- · Replies 5 ·
Impulse-Momentum Theorem and diving board
- chops369
- · Replies 1 ·
Finding weight in a statics problem with two rope tensions
- d1343
- · Replies 3 ·
Short answer questions on Solid state physics
- closed
- · Replies 1 ·
Electric field of an infinite wire using Gauss law
- asi123
- · Replies 2 ·
Moving a block with kinetic and static friction to find the net force?
- disque
- · Replies 2 ·
Tension in a cord suspending a pulley with 1.2 kg and 3.2 kg masses
- botab
- · Replies 6 ·
Dude. How do you Uncross a cross product?
- Saladsamurai
- · Replies 2 ·
Why is v² = v₀² + 2at dimensionally incorrect but v² = v₀² + 2ax correct?
- Manda*n
- · Replies 2 ·
Finding the magnitude of force given acceleration?
- disque
- · Replies 2 ·
Electric potential inside charged ball
- malawi_glenn
- · Replies 14 ·
Solving for two forces from equilibrium equations
- d1343
- · Replies 1 ·
Currents in an series electric circuit
- -EquinoX-
- · Replies 11 ·
Perfectly Inelastic and initial kinetic energy
- jan2905
- · Replies 3 ·
Circular motion/momentum conservation
- ritwik06
- · Replies 12 ·
How many tanks can a 150 ft. barge carry without sinking more than 1 ft?
- NYCHE89
- · Replies 2 ·
Max Height Achieved by Ball in Physics Project
- Michael17
- · Replies 2 ·
Thermal Conductivity of a Metal Rod
- Koshi
- · Replies 4 ·
How Is the Electron's Path Altered in a Parallel-Plate Capacitor?
- xjadeu
- · Replies 2 ·
Quantum Mechanics and Eigenfunctions Checks
- TFM
- · Replies 4 ·
Electric field of a cell membrane
- throllen
- · Replies 1 ·
I quick. havent been paying much attention.
- 85Mario85
- · Replies 10 ·
Magnitude of the Net Electrostatic Force On an Oxygen Atom
- shimizua
- · Replies 1 ·
How Do You Calculate Direction and Vector Components in Physics Problems?
- Scropion
- · Replies 3 ·
What Force Does the Wood Exert on the Bullet?
- mrnastytime
- · Replies 4 ·