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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Kinetic Theory Of Temperature Problem
- Iscariot
- · Replies 2 ·
Finding distance and average speed for multi-segment car trip
- snowbelle
- · Replies 4 ·
Earth-moon center of mass and pool ball collision angles
- Punchlinegirl
- · Replies 8 ·
Does the Compton effect depend more on wavelength than scattering angle?
- asdf1
- · Replies 12 ·
Converting electron mass from kg to MeV/c²
- asdf1
- · Replies 7 ·
Solving a Swing Problem: Finding the Tension
- ilovephysics123
- · Replies 4 ·
How Do You Calculate Work Done by a Varying Force in One Direction?
- k20dc5
- · Replies 2 ·
Angular velocity from θ = 4t − 3t² + t³ at t=1 and t=5.5
- ViewtifulBeau
- · Replies 2 ·
Solving Elastic Collision: Final Speed of Mass M
- ViewtifulBeau
- · Replies 4 ·
Number of Wavelengths from Excited H Atom (n=9)
- Pengwuino
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Tension and reaction forces for pole with hanging load at 37°
- sprouser
- · Replies 15 ·
Calculating Induced Current in Coaxial Solenoid-Wire System
- blur13
- · Replies 2 ·
Solving Spring Constant: mu, m, g, v
- SpicyQ
- · Replies 3 ·
Measuring tube velocity with air bubble?
- furtivefelon
- · Replies 8 ·
Orbital velocity and period of weather satellite, Atwood machine
- dustybray
- · Replies 1 ·
What Determines the Amplitude of a Vibrating Membrane?
- furtivefelon
- · Replies 1 ·
Heater rated 500W stops raising water temperature at 60°C
- furtivefelon
- · Replies 20 ·
Uniform Circular Motion questions
- LostStudent
- · Replies 4 ·
Change in momentum for object deflected from 30° below to 25° above horizontal
- amcavoy
- · Replies 10 ·
Draw Minkowski Diagram: x-axis 0-5m, ct-axis 0-5m
- Pixter
- · Replies 2 ·
Current & Power After Battery Change Doubling EMF in Circuit
- Erwin Schrodinger
- · Replies 1 ·
What is the Density of a 6.8-kg Piece of Metal That Displaces 1 Liter of Water?
- sharonita
- · Replies 7 ·
Does each fragment get half the momentum when a shell explodes?
- Weather Freak
- · Replies 4 ·
Calculating Block's Max Height from Impulse/Velocity
- joex444
- · Replies 1 ·
How does the gravitational force between two objects change with distance?
- elle
- · Replies 5 ·
How Do You Calculate the Electric Potential Due to a Non-Uniformly Charged Rod?
- thenewbosco
- · Replies 6 ·
What Is the Force on the Wheaties Box from the Cheerios Box?
- suspenc3
- · Replies 4 ·
Uniform Circular Motion of streetcar
- suspenc3
- · Replies 8 ·
Difficult gravitational potential problem
- Atomos
- · Replies 2 ·
Sputnik I gravitational potential energy change from apogee to perigee
- wr1015
- · Replies 3 ·
Why Does Tcos(20) Equal umg in a Sledge Problem?
- unnamedplayer
- · Replies 7 ·
Gas Pressure at 25°C: 0.45 mol, 0.65 L
- DB
- · Replies 2 ·
Vertical jump calculations from jump test data
- Winner
- · Replies 9 ·
Maximum possible static friction
- boris16
- · Replies 3 ·
Why does F=kx give wrong net work for spring with friction?
- unnamedplayer
- · Replies 6 ·
What other forces act on a rod-pivot system besides centripetal force?
- SN1987a
- · Replies 9 ·
Solve the Puzzle: Find the Scale Readings for a Mass Distribution
- innman
- · Replies 2 ·
How Do You Calculate Muzzle Velocity Using Mass and Height?
- lando45
- · Replies 15 ·
Calculating the Age of an Ancient Boat: A Radioactive Decay Problem
- Iscariot
- · Replies 2 ·
How Does Heat Affect the Expansion of Monatomic Gas in an Insulated Cylinder?
- alias25
- · Replies 1 ·
One question on cercular motion
- kevinlikesphysics
- · Replies 1 ·
Uncertainty of Grating Constant
- jdog6
- · Replies 1 ·
How Does Bending Knees Reduce Impact Force During a Jump?
- chipsdeluxe
- · Replies 2 ·
Solving Circuits and Calculating Resistance and Voltmeter Readings
- QueenFisher
- · Replies 6 ·
Marble gun - how far to compress string
- brad sue
- · Replies 2 ·
How to Calculate the Mass of a Toy Car Using Kinetic Energy?
- runicle
- · Replies 2 ·
How do i determine power generated be an applied force
- runicle
- · Replies 3 ·
Physics Problem: Brick Thrown From Building Height
- Physicsdummy_101
- · Replies 5 ·
Physics: Find Wagon Speed Up 18.1° Hill Given Tension and Distance
- marishik
- · Replies 1 ·
Finding the center of mass with a modified reaction board method
- Winner
- · Replies 10 ·
What is the formula for friction on an inclined plane?
- nguyen713
- · Replies 2 ·
How Accurate Must the Orbit Radius Be for Geosynchronous Satellites?
- Dorothy Weglend
- · Replies 2 ·
Difference between qualitative and quantitative velocity vs. time graphs
- Lloydsgurl
- · Replies 2 ·
What is the Resultant Force on a Mass in Non-Uniform Circular Motion?
- [imagine]
- · Replies 4 ·
Calculate the net torque about the axle of the wheel
- confusedbyphysics
- · Replies 6 ·
Inertial Disk Lab: Physics 11 H Experiment
- agentd00nut
- · Replies 1 ·
Why use a discharge tube instead of a light bulb?
- jdog6
- · Replies 2 ·
Projectile Motion Problem: Calculating Horizontal Distance with d=s*t Formula
- needs_physics_help
- · Replies 1 ·
How Does Adding Mass Affect Velocity in a Frictionless System?
- Trista
- · Replies 4 ·
Car accelerating in a circle with friction and variable speed
- newcool
- · Replies 2 ·
Solve Flying Baseball Problem: a-h
- shepwarp
- · Replies 4 ·
Lab report: pulling cart up a ramp, find efficiencies
- msimard8
- · Replies 2 ·
Simple Harmonic Motion and time equation
- erik-the-red
- · Replies 2 ·
Velocity of mail bag released from helicopter
- physicsphreak123
- · Replies 2 ·
Train tracks and helium gas. 2 questions.
- Pixter
- · Replies 1 ·
Energy of Harmonic Oscillators?
- erik-the-red
- · Replies 2 ·
Non-Native English Speaker: Torpidity Coefficient
- Good old Grim
- · Replies 1 ·
How Does Work Affect Acceleration on an Air Track?
- msimard8
- · Replies 1 ·
Conservation of Momentum in a Two-Sled System
- Punchlinegirl
- · Replies 7 ·
How do you find the resistance of a coil
- Tcat
- · Replies 6 ·
Current Calculation Problem (Probably Simple)
- Iscariot
- · Replies 1 ·
Kinematics of rocket - calculate total hang time
- physicsphreak123
- · Replies 1 ·
Force/Energy Analysis of Two Bars Connected by a Spring
- maverick280857
- · Replies 7 ·
Why does 30,000 kg of snow at 0°C contain more heat than 1 mL of water at 100°C?
- bandrews789
- · Replies 3 ·
How can I find the acceleration and position of a chain overhanging a table?
- hola
- · Replies 11 ·
What is the kinetic energy of object 1 after being pulled?
- AdnamaLeigh
- · Replies 1 ·
Solar panel cell configuration and thermistor potential divider
- 123Sub-Zero
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Finding potential difference of Va-Vb, circuits.
- mr_coffee
- · Replies 2 ·
Why does light reflect at a lower refractive index boundary in thin films?
- dekoi
- · Replies 3 ·
How Is the Swing Angle Determined in a Ballistic Pendulum Problem?
- Punchlinegirl
- · Replies 2 ·
Can Vector Operations Be Done in Polar Coordinates?
- WalterWilliams
- · Replies 1 ·
Jane swinging across river on vine against wind force
- kreil
- · Replies 3 ·
Inclined Plane Newton's Third Law
- hshphyss
- · Replies 4 ·
How Do Rearview Mirrors Affect Image Size?
- jena
- · Replies 1 ·
How Can You Find the Mass of a Satellite Without a Given Radius?
- Lemmy
- · Replies 1 ·
Work Done by Elevator Lifting Mechanism
- SS2006
- · Replies 3 ·
Calculating the Center of Mass for a Dog on a Flatboat
- Punchlinegirl
- · Replies 2 ·
Calculating Acceleration from High Speed Camera Footage
- gr3g1
- · Replies 5 ·
Magnitude and direction of impulse
- PhunWithPhysics
- · Replies 17 ·
Solving Horizontal Force for Femur Injury Treatment
- stunner5000pt
- · Replies 3 ·
How Do You Calculate the Moment of Inertia for a Tube?
- chui
- · Replies 12 ·
Airplane heading with 100 km/h wind from the north
- kirbykirbykirby
- · Replies 9 ·
What Is the Coefficient of Kinetic Friction and the Boy's Acceleration Downhill?
- lunarskull
- · Replies 1 ·
Finding coefficient of friction for a sled pulled at constant speed
- Confuzzlement
- · Replies 2 ·
Harsh Torque problem. Check for me :o)
- Winner
- · Replies 3 ·
Did i add up these Ressitors right?
- mr_coffee
- · Replies 1 ·
How Does Heating Affect the Internal Energy of Gas in a Piston-Cylinder System?
- huskydc
- · Replies 1 ·
Max and min forces on an elevator.
- yeyspaz
- · Replies 2 ·
What Angle Gives a Magnetic Force of 1.8 Times the Original Force?
- kpangrace
- · Replies 1 ·
Findiing internal resitance trouble
- mr_coffee
- · Replies 3 ·