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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Rotational motion of a turntable
- mizzy
- · Replies 3 ·
Cylindrical Surface Charge Density
- dinnsdale
- · Replies 10 ·
Conservation of Energy with Spring Mass System on Inclined Plane
- JakeHowarth
- · Replies 3 ·
Conceptual: electric potential
- calgal260
- · Replies 3 ·
Linear Momentum (One Dimension) Quiz Question
- LeonGrande
- · Replies 3 ·
Perfect gasses temperature vs kinetic energy per molecule
- madah12
- · Replies 1 ·
Solving Energy & Power Homework on Train Mass & Vertical Rise
- mizzy
- · Replies 12 ·
Why apply momentum conservation when gravity acts on the acrobat-monkey system
- metalrose
- · Replies 11 ·
Center of mass equation for an ellipsoid?
- moonman239
- · Replies 1 ·
What are the relevant equations for two dimensional motion in physics?
- madah12
- · Replies 10 ·
Perfectly Inelastic Disk and Stick Collision- Angular Speed
- bcca
- · Replies 2 ·
Vector Analysis of Point Charges: Solving for Net Force
- pat666
- · Replies 2 ·
Electric field position for -14.1 nC charge at (2.48, 1.24) cm
- Ush
- · Replies 2 ·
Some diffraction slits/gratings questions
- lol_nl
- · Replies 5 ·
Nanotechnology: scales of tools and objects
- priscilla98
- · Replies 2 ·
What does it mean to find current in milliamps?
- randomss444
- · Replies 3 ·
Potential energy of two opposite charges when separation increases to 3R/2
- chemistry4all
- · Replies 6 ·
Friction; what does not contribute?
- jadiepants
- · Replies 5 ·
Does rotational motion or energy typically follow Newton's laws?
- sona1177
- · Replies 3 ·
Maximum bumper compression in elastic collision between cars
- eric.c
- · Replies 3 ·
What Is the Maximum Speed of an Alpha Particle with 2.34 MeV Kinetic Energy?
- Kommandant
- · Replies 1 ·
Realistic bullet drop calculation
- warfreak131
- · Replies 13 ·
How Fast Does a Sandbag Hit the Scaffolding in a Pulley System?
- mizzy
- · Replies 9 ·
Finding the accel of two objects on an incline.
- Agent M27
- · Replies 4 ·
How do I figure out the initial velocity of an object?
- Dobro_player
- · Replies 1 ·
Oscillating sphere on a parabolic surface
- Swap
- · Replies 7 ·
Is My Interpretation of the Left Ventricle Blood Acceleration Problem Correct?
- ryant14
- · Replies 4 ·
Pressure Discrepancy in Submarine Airlock - What's the Real Answer?
- astenroo
- · Replies 6 ·
G-force question. amusment park physics
- JT1993
- · Replies 2 ·
Electric field at the center of the equilateral triangle
- mlostrac
- · Replies 3 ·
How Fast Were the Cars Traveling Before the Collision?
- ilovemynny
- · Replies 1 ·
Electric current flowing through a resistor
- PhysicsUnderg
- · Replies 8 ·
Why does a ball attract both positive and negative charges?
- harimakenji
- · Replies 8 ·
Physics-Wave concepts/standing waves
- Noles1
- · Replies 30 ·
Rubber stopper hanging from the view view mirror of a car
- shawli
- · Replies 7 ·
How Do We Calculate Equivalent Resistance with Measurement Errors?
- Quantumkid
- · Replies 4 ·
Dynamics - rope attached to an object
- itsumodoori
- · Replies 1 ·
How Long Does It Take for the Cart to Complete One Rotation?
- sona1177
- · Replies 3 ·
Why is the electric flux from a dipole at the center of a sphere zero?
- venkat1989
- · Replies 4 ·
Finding average torque and net work for a spinning turntable
- Mowgli
- · Replies 3 ·
Finding Magnitude of Acceleration using the force
- ilovemynny
- · Replies 1 ·
How Long Does It Take Astronaut Jane to Drift Back to Her Spaceship?
- Mowgli
- · Replies 7 ·
How many revolutions per second does a bike wheel make?
- ortegavs
- · Replies 2 ·
Ideal Gas Theory: Calculate N, V from P, T
- Jenkz
- · Replies 4 ·
What is the Radius of a Helium Balloon Needed to Lift 180 kg?
- physics_freak
- · Replies 1 ·
Physics experiment ideas for grade 12 extended investigation
- LachlanMc
- · Replies 3 ·
Really clueless = Minimum Mass Tension Force Question
- Pandaanli
- · Replies 9 ·
When was the quasar formed in relation to the Big Bang?
- lol_nl
- · Replies 4 ·
Diffraction pattern of a light beam from a narrow slit
- -Aladdin-
- · Replies 1 ·
How Do You Calculate Terminal Voltage Vab in a Circuit?
- rizardon
- · Replies 3 ·
Finding the Work done on a Ride?
- ilovemynny
- · Replies 5 ·
How to Calculate Work Done by an Escalator?
- sylavel
- · Replies 3 ·
Wheel slowing from 210 rpm to rest in 15 seconds
- Mowgli
- · Replies 5 ·
How can kinematics problems be solved with reaction time taken into account?
- stphillips
- · Replies 1 ·
Bat Force and Human Lifting Capacity in Softball Pitching
- Mowgli
- · Replies 21 ·
Daisy colliding with stationary friend on ice
- Mowgli
- · Replies 6 ·
Frequency, and finding wave speed. Professor mistake?
- ShineyPenny
- · Replies 6 ·
Average force on stationary locomotive in elastic collision
- mizzy
- · Replies 4 ·
Pressure exerted by a swinging hammer on impact
- cds333
- · Replies 11 ·
Granite and steel cube collision using energy and momentum conservation
- DrSmiles
- · Replies 2 ·
Finding frequency of AC source with inductor
- -Aladdin-
- · Replies 6 ·
Conserv. of E and Work momentum
- saliiravezz
- · Replies 1 ·
How Far Do Dishes Move in the Tablecloth Trick?
- sona1177
- · Replies 4 ·
Calculating the Speed on a Roller Coaster
- ilovemynny
- · Replies 8 ·
What is the angle between the directions of motion of the helium atom
- ecogreen
- · Replies 1 ·
Power mechanics physics problem
- -Aladdin-
- · Replies 3 ·
How Is Surface Charge Density Calculated from Electric Field Magnitude?
- pat666
- · Replies 3 ·
The velocity of each object after the collision
- mizzy
- · Replies 8 ·
Calculating Mass of Gas Needed to Correct Rocket's Course
- Maiia
- · Replies 2 ·
Drift velocity problem 9 and 10
- yang09
- · Replies 1 ·
Vertical Drop how to find the speed?
- ilovemynny
- · Replies 10 ·
How Does Iceberg Buoyancy Relate to Sea Water Density?
- Agent M27
- · Replies 4 ·
How Do You Calculate the Speed of a Car Down an Inclined Driveway with Friction?
- mizzy
- · Replies 6 ·
Angle, range and extension in projectile motion?
- donkeycopter
- · Replies 2 ·
Popgun projectile height with friction in the barrel
- illidari
- · Replies 5 ·
Work and Work-Energy Theorem: Finding Work and Speed of Object Lifted Vertically
- mizzy
- · Replies 2 ·
Surface Integral: Finding Distance Along Sphere
- Gear.0
- · Replies 4 ·
Will the gun explode if I do this?
- comsubin61
- · Replies 4 ·
If there is a satellite in geosynchronous orbit
- ninetyfour
- · Replies 1 ·
Solving a Pulley Problem with Unknown Variables
- jprg
- · Replies 7 ·
Object dragged at an angle across a horizontal plane
- ninetyfour
- · Replies 14 ·
Forces - distance of a skier on an incline
- shawli
- · Replies 3 ·
Ratio of Momentum of m1 to m2: A, B, C or D?
- ecogreen
- · Replies 1 ·
Critical angle for pulling a wound string on coaxial cylinders
- Krappy
- · Replies 4 ·
Solve Impulse Problem: Find Lowest Average Force
- ortegavs
- · Replies 2 ·
Combination of Speeds? Car Crash problem?
- ilovemynny
- · Replies 1 ·
How long is the bus trip from Balamb to Galbadia?
- HiSoCReeD
- · Replies 1 ·
Electric field between two point charges 17 cm apart
- pat666
- · Replies 6 ·
Find the force acting on the charge at the origin
- pat666
- · Replies 2 ·
Does Temperature Affect Current Flow?
- randomss444
- · Replies 4 ·
I with vector addition and subtraction
- ninetyfour
- · Replies 2 ·
How Much Energy Is Stored in a Non-Stretching Rope and Mass System?
- Higgy
- · Replies 3 ·
Solving Distance of Train from Start to Stoppage
- Canha
- · Replies 9 ·
Sailing East: Finding Ship's Ground Velocity
- ashvinthecha
- · Replies 2 ·
Estimating image distance in lens and mirror
- ShineyPenny
- · Replies 5 ·
Forces - finding minimum mass given coefficients of friction
- shawli
- · Replies 11 ·
Electric Field and Potential in Spherical Shells
- rizardon
- · Replies 6 ·
Forces - two objects in contact
- shawli
- · Replies 6 ·
Sketching Vector Function: -yx'+xy
- abrowaqas
- · Replies 2 ·