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 Power and Energy Consumption of Two Coffee-Makers
- Humbleness
- · Replies 6 ·
Buoy in waves problem (Feynman)
- mainguy
- · Replies 13 ·
Calculating Mass of a Balanced Beam with Two People Using Torque Equations
- EchoTheCat
- · Replies 5 ·
Center of mass of a disk with a hole
- Tomas Carvalho
- · Replies 8 ·
How to calculate leverage with complex shaped levers
- Pinon1977
- · Replies 3 ·
Finding tension force length in slingshot problem
- Krashy
- · Replies 5 ·
Charge redistribution on capacitors
- Jahnavi
- · Replies 7 ·
Max voltage of an air capacitor
- HelloCthulhu
- · Replies 4 ·
Centripetal acceleration of a 7.5m turbine at 94 rpm
- Juliusz
- · Replies 22 ·
What is the Mistake in Calculating Power Dissipation in a Resistor?
- Jahnavi
- · Replies 10 ·
Curved Motion: Calculating Acceleration Components
- isukatphysics69
- · Replies 1 ·
Earth's Acceleration Toward the Sun
- boblolo123
- · Replies 5 ·
When is speed increasing in curved motion?
- isukatphysics69
- · Replies 1 ·
Why Is My Physical Pendulum Period Calculation Incorrect?
- lc99
- · Replies 1 ·
Using quadratic formula to find time [projectile motion]
- camcognito
- · Replies 2 ·
Calculating tangential acceleration of rotating object
- APphysicsSenior
- · Replies 2 ·
Nonlinear pendulum equation with air resistance proportional to velocity
- Michael Nelo
- · Replies 4 ·
Lifting an object, kinetic energy, work and forces
- Karagoz
- · Replies 11 ·
Is the Total Force in Damped Harmonic Motion Always Opposite to Velocity?
- fcoulomb
- · Replies 4 ·
Divide 720m fall into three equal-time segments
- Juliusz
- · Replies 14 ·
Stationary vertical cylinder with heavy piston
- BobaJ
- · Replies 3 ·
Potential difference and charge across a capacitor
- Jahnavi
- · Replies 2 ·
Block on frictionless incline: finding normal force and acceleration
- Ella1777
- · Replies 2 ·
Solution of basic special relativity problem
- Adgorn
- · Replies 4 ·
Show Line of action of suspended rods relative to points on the rods
- Richie Smash
- · Replies 13 ·
How Do I Calculate Fluence, Flux, and Dose for a TiH Beam?
- sportcardinal90
- · Replies 26 ·
How would I calculate how close a ship can approach the sun?
- CricK0es
- · Replies 4 ·
What happens to the angle of a circular ring as temperature increases?
- Jahnavi
- · Replies 5 ·
The work of the magnetic force
- Eitan Levy
- · Replies 6 ·
Converting g/cm³ × mL × m/s² to Newtons
- Makali
- · Replies 2 ·
Comparing slopes and accelerations on a v-t graph with 120° and 135° angles
- Jahnavi
- · Replies 5 ·
Time period from potential energy expression
- Jahnavi
- · Replies 6 ·
What conversions are needed for solving a density equation?
- Makali
- · Replies 14 ·
Kepler's 3rd Law Question finding how long a year is for Pluto
- Jon Bori
- · Replies 2 ·
I Need to Calculate the Speed of Sound for a Lab
- Frosty Cakes
- · Replies 4 ·
Find Charges on Capacitor w/ Floating Plates
- Hydrous Caperilla
- · Replies 8 ·
3 balls in a moving mechanics problem
- Manolisjam
- · Replies 41 ·
Carbon-14 dating for the Iceman with 52% remaining
- Meeeessttteeehh
- · Replies 8 ·
Classical Mechanics Problem with balls
- Manolisjam
- · Replies 29 ·
2 trucks pulling a third truck by the means of a pulley
- Jkyou
- · Replies 24 ·
Calculating the speed of longitudinal wave
- bolzano95
- · Replies 2 ·
Charges pushed to the ends of a pole -- Faraday's law
- Eitan Levy
- · Replies 9 ·
How Does Current Direction and Charge Flow in a Solenoid-Wire System?
- Eitan Levy
- · Replies 4 ·
Should I add or subtract work done by friction when finding net work?
- almosthavoc
- · Replies 1 ·
How does variable density and viscosity affect Reyleigh-Taylor instability?
- MrOne
- · Replies 3 ·
How Much Voltage Is Needed to Suspend Charged Water Droplets?
- Chawker
- · Replies 5 ·
Will current flow in an open circuit in a changing magnetic field?
- Vatsal Goyal
- · Replies 4 ·
Biot-Savart's law and Ampere's Law -- are they the same?
- srikanth tupurani
- · Replies 1 ·
How Does Water Volume Affect Pressure in a Closed Container?
- Physicist1011
- · Replies 4 ·
Calculating total amount of energy in a fusion reaction
- Humbleness
- · Replies 4 ·
Work from Carnot engine burning 100 cu ft natural gas
- Mimi Sanford
- · Replies 14 ·
RC circuit: time current exceeds 50mA in capacitor discharge
- kcombs
- · Replies 9 ·
Does r=mv/Bq hold true considering Maxwell's E.M wave theory?
- randomgamernerd
- · Replies 6 ·
Calculate Height of Light Pole from Shadow Length
- lbwet
- · Replies 4 ·
Minimum Initial Speed for Ball to Clear Hemispherical Rock
- nebullient
- · Replies 15 ·
How does this solution make any sense? (Tension problem)
- Unqualifiedlol
- · Replies 4 ·
Speed at which a car loses contact with a frictionless road
- Tommie Robinson
- · Replies 16 ·
What is the displacement and average velocity of a classic car in a road rally?
- dancingfish897
- · Replies 1 ·
Force between Parallel Current Carrying Wires
- mitchy16
- · Replies 5 ·
Projectile motion - microgravity astronaut training
- nebullient
- · Replies 9 ·
Complete Motion of a ball in a Stable Equilibrium
- TanX
- · Replies 10 ·
How Does the Direction of Fields Affect Charged Particle Motion?
- Jahnavi
- · Replies 13 ·
Minimum voltage for electrons to reach anode in cylindrical geometry
- PumpkinCougar95
- · Replies 12 ·
Heat transfer, how long it takes ice to reach melting point
- Humbleness
- · Replies 6 ·
Hall voltage accuracy within ±5% as temperature varies from 40°C
- evans
- · Replies 2 ·
How is Weight Distributed on a Man's Feet on a Turning Railroad Car?
- CGandC
- · Replies 17 ·
Horizontal propagated movement of mechanical wave
- bolzano95
- · Replies 1 ·
Finding the gravitational force over a flat infinite sheet
- Phantoful
- · Replies 6 ·
Number of electric field lines through concentric spheres
- Helmy
- · Replies 2 ·
Draw a diagram showing the forces acting on a plank and find x
- Richie Smash
- · Replies 50 ·
Solving for time in a frustrating dynamics question
- Meeeessttteeehh
- · Replies 4 ·
Calculating the Velocity of a Catapulted Object
- I-Love-Maths2
- · Replies 5 ·
Linear motion question -- Drops falling from a dripping faucet
- Russ Morgan
- · Replies 4 ·
Plank oscillating on a cylindrical log
- Jahnavi
- · Replies 2 ·
Could this bulb resistance problem be modified ?
- Jahnavi
- · Replies 3 ·
Galilean Transformations Problem: Two moving Rockets+Missile
- Shadowmaker
- · Replies 2 ·
Compute acceleration on an inclined plane with friction
- Jim Bob
- · Replies 5 ·
Three charges constrained to a ring
- auctor
- · Replies 4 ·
What happens if the magnetic field is too weak in a synchrotron accelerator?
- Physics345
- · Replies 25 ·
Deriving an equation for the velocity of a particle
- LonelyElectron
- · Replies 1 ·
Kepler's 3rd law and a binary system
- Taylor_1989
- · Replies 2 ·
Is being in something conductive during a storm good?
- Cheesycheese213
- · Replies 1 ·
How do we know how long the force is acting on an object?
- eprparadox
- · Replies 4 ·
Gas expansion with heater and liquid spilling: is it quasi-static adiabatic?
- Terry Bing
- · Replies 4 ·
Why is my egg-drop force calculation only 7 Newtons when eggs need 25 to break?
- Yellowkies_3275
- · Replies 7 ·
How Do You Calculate Total Displacement in Multi-Stage Motion Problems?
- TheGeek
- · Replies 3 ·
Radial Heat Conduction through a Cylindrical Pipe
- Thisbe Schwer
- · Replies 3 ·
Proving Snell's law using Euler-Lagrange equations
- CGandC
- · Replies 15 ·
Speed and direction of b and anti-b quark
- FilipLand
- · Replies 2 ·
Apparent depth of ring near boundary between two media
- L-x
- · Replies 2 ·
Find the width increases when a monoatomic gas is heated
- Helly123
- · Replies 29 ·
What is the nearest hyperplane to the point (2,1,3,-1)?
- Leandromann
- · Replies 3 ·
Describing lasers, their use, and link to science
- Physics345
- · Replies 6 ·
How do oscillators create EM waves in cell phones?
- Physics345
- · Replies 10 ·
Find the object's acceleration
- Kerdo
- · Replies 11 ·
Uncertainty/error of a volume is greater than the normal volume
- AndrewPX
- · Replies 4 ·
Calculating rise time, settling time and overshoot for liquid tank level controller
- topcat123
- · Replies 3 ·
How Does Temperature Affect Electrical Resistance in Copper Wire?
- porporking
- · Replies 2 ·
Thomas Young's double slit experiment
- Physics345
- · Replies 6 ·