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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Solar Energy and Green House Effect Question
- TFM
- · Replies 7 ·
Magnetic flux in a coil, find current
- hugage
- · Replies 2 ·
Finding speed from velocity vector of a ship
- _Mayday_
- · Replies 6 ·
How Does Increasing the Length of a Conductor Affect the Induced EMF?
- Icetray
- · Replies 1 ·
Electric field from a line charge extending to infinity
- XxBollWeevilx
- · Replies 10 ·
Calculate the magnitude of the charge on each sphere
- Bradsteeves
- · Replies 3 ·
Electrical Safety - Shocks - Model Answer?
- Chantry09
- · Replies 4 ·
Light plane ground velocity with wind vector from N 80°E
- victoria_b
- · Replies 2 ·
Spring Constant and Work (2 separate problems)
- kudelko24
- · Replies 6 ·
Earth MAss if Helium and Hydrogen in suns propotions were added,
- TFM
- · Replies 1 ·
Calculating Torque: Solving for Torque at Point A
- daemonakadevil
- · Replies 5 ·
Q19. What is the Stored Energy on a Capacitor Charged to 200 V?
- Strawberry
- · Replies 3 ·
Crystal Goblet-Opera Singer Frequency Problem
- pc21
- · Replies 1 ·
How Does the Conversion of Mass to Energy Sustain Life and Power Our World?
- beccadd
- · Replies 1 ·
Maximum angle in ballistic pendulum after inelastic collision
- Return
- · Replies 9 ·
Why is the Charge on the Equivalent Capacitor the Same as C1?
- Strawberry
- · Replies 1 ·
How Close Will Two High-Speed Charged Particles Get?
- Bradsteeves
- · Replies 1 ·
Electromagnetism problem from scavenger hunt competition
- brendan3eb
- · Replies 7 ·
Solving a Harmonic Motion Problem: Finding Position, Velocity, and Acceleration
- chocolatelover
- · Replies 2 ·
Circuit with ammeter , what does the voltmeter and battery read
- sonrie
- · Replies 5 ·
How Is Tension Distributed in a Scaffold Supported by Wires with Uneven Loads?
- cheryl morgan
- · Replies 1 ·
Finding the Equivalent Resistance of a Circuit
- wiz0r
- · Replies 3 ·
Calculating Energy Required to Accelerate a Ferrari from 14km/h to 25km/h
- jeahomgrajan
- · Replies 4 ·
Parallel-plate air capacitor Problem
- TFM
- · Replies 14 ·
Parallel plate capacitor find the volts
- sonrie
- · Replies 9 ·
Gravitational force between two 73 kg people 1 m apart
- chocolatelover
- · Replies 2 ·
Why Is the Tension Calculated Using Cosine in a Conical Pendulum Problem?
- Sheneron
- · Replies 4 ·
Magnetic Field in Plane of Loop
- pidoctor314
- · Replies 11 ·
Sphere rolling down an incline
- dk214
- · Replies 2 ·
Work Done on N2 Gas in Isothermal Expansion: Irreversible vs Reversible
- madtaz
- · Replies 2 ·
Finding frequency of blue light with wavelength 450 nm
- 3instein
- · Replies 1 ·
Fluid mechanics of a sinking ball
- Modern Algebr
- · Replies 1 ·
Why use a Wheatstone bridge to measure strain gauge resistance changes
- gionex
- · Replies 4 ·
Heat flow problem- what did I do wrong?
- frasifrasi
- · Replies 10 ·
Cargo ship velocity components and change in velocity
- marisa29
- · Replies 2 ·
Wave Composition - Different Amplitudes
- bobthenormal
- · Replies 3 ·
Force on a 70 kg passenger hitting windshield vs airbag
- marisa29
- · Replies 1 ·
Incline/Pulley/Train combination problem (Dynamics)
- arbitertrib
- · Replies 2 ·
What is the momentum (magnitude and direction )
- marisa29
- · Replies 1 ·
Solve Simple Force Question: Acceleration, Tension
- Sheneron
- · Replies 2 ·
Charged particle motion between parallel plates
- Kylah
- · Replies 1 ·
Which Graph Best Represents the Stone's Angular Momentum Over Time?
- awvvu
- · Replies 2 ·
Physics EEI topic: viscosity vs temperature or leverage in horse bits
- .Kestrel.
- · Replies 2 ·
Maximum Upward Acceleration of a String
- Fr3shFr0st
- · Replies 2 ·
Momentum Help: Solving a Child's Physics Problem
- psychfan29
- · Replies 1 ·
SHM, Determing Spring Constant from Period^2 vs. Mass
- nmacholl
- · Replies 1 ·
Conceptual Physics Paper on Walking - Get Proof-Read Now
- SBowling78
- · Replies 1 ·
How Do You Calculate the Velocity of a 3.00kg Block at x=2.00m?
- cecico
- · Replies 2 ·
Calculating Entropy Change of Lake from Thrown Aluminum Bar
- swimchick
- · Replies 1 ·
Hand rule application (dir of mag force)
- WPCareyDevil
- · Replies 4 ·
Kinematics Problem: Ball Thrown from 84m Window with 32.2m/s Velocity
- sz1989
- · Replies 1 ·
How Is the Potential Difference Calculated in a Suspended Charge Scenario?
- sarah_a289
- · Replies 1 ·
Forces acting on 2 boxes connected by taut thread
- Mersenne
- · Replies 3 ·
Does net force do more work when speed doubles twice?
- clarkandlarry
- · Replies 5 ·
Solving Astronaut Problem: Time Dilation, Pulse Calculation
- salsabel
- · Replies 3 ·
Calculating Force Exerted by Man on 380kg Piano Down an Incline
- inflames829
- · Replies 5 ·
Block projected up incline with friction: will it slide back down?
- SheldonG
- · Replies 7 ·
What does the letter e stand for in the formula for current in an RL circuit?
- complexc25
- · Replies 1 ·
Why Does the Acceleration of Free Fall Differ at the Equator?
- ay2k
- · Replies 17 ·
Kinematic question, i think it's hard
- 9giddjl
- · Replies 4 ·
Calculating Energy of Fission in Deuterium-Tritium Reaction
- Physicsissuef
- · Replies 3 ·
Acceleration Vs. Displacement Graph
- manfriction
- · Replies 1 ·
Involves magnetic force and point charges with constant velocity.
- AlexAnonymous
- · Replies 2 ·
Explain what modulation and demodulation is
- sanado
- · Replies 1 ·
Calculate Effects of 10% Increase in Gravity on Movement
- Budgieblue
- · Replies 1 ·
Thermodynamics refrigerator problem
- daemonakadevil
- · Replies 2 ·
What is the flux through (a) each cube face
- danago
- · Replies 10 ·
How Do Magnets Affect TV Screens?
- jackster18
- · Replies 3 ·
How Does Latent Heat Affect Ice Melting in an Insulated System?
- caesius
- · Replies 1 ·
An object travels 14 cm in fourth second of motion
- 9giddjl
- · Replies 3 ·
What angular speed is the stick spinning after the collision?
- saturn67
- · Replies 8 ·
How Do You Calculate Mutual Inductance Between an Infinite Wire and a Loop?
- jesuslovesu
- · Replies 9 ·
Calculate Leqv for Parallel Inductors
- Gear300
- · Replies 9 ·
Calculate Water Volume From Pressure Vessel Burst
- fredrick08
- · Replies 12 ·
Difficult homework problem 3-4
- daveyman
- · Replies 8 ·
Interference from Thin Films: What Happens to Wavelengths in Different Media?
- baseballer10p
- · Replies 3 ·
How Do You Calculate the Frequency of a Tuning Fork Using a Resonance Tube?
- lettertwelve
- · Replies 2 ·
Finding position and velocity when KE is 50% of total energy in SHM
- robf224
- · Replies 2 ·
Calculating Momentum Change of a Snooker Ball Collision
- Crosshash
- · Replies 3 ·
Equivalent Resistance of an RLC circuit
- wiz0r
- · Replies 1 ·
How Much Warmer Could Water Get After a 50 Meter Fall?
- caesius
- · Replies 1 ·
What is the acceleration of a book on a bookshelf
- Ruby Gray
- · Replies 4 ·
Wave Motion, writing an equation.
- Ithryndil
- · Replies 9 ·
Find frictional torque acting on the pulley?
- saturn67
- · Replies 18 ·
How Do You Calculate Magnetic Force in a Moving Conductor Setup?
- rocafella1583
- · Replies 2 ·
Work needed to stop a rotating 32 kg wheel in 15 seconds
- frig0018
- · Replies 3 ·
What is the average angular velocity?
- saturn67
- · Replies 2 ·
Block move down the curved hill and hit attached block spring with diagram
- cecico
- · Replies 20 ·
Distance-Varying Electric Field and Voltage of Parallel Plate Capacitors
- Riyuki
- · Replies 4 ·
Firing a spherical bullet into a watertank
- TheMan112
- · Replies 6 ·
How Much Work Does a Worker Do Pushing a Block on a Frictional Surface?
- KMjuniormint5
- · Replies 12 ·
Specific heat and latent heat of fusion
- rahndezvous
- · Replies 2 ·
At resonance, the phase angle in an AC circuit is?
- alexavier
- · Replies 1 ·
Calculate Maximum Velocity with Swing Chain Length and Angle
- drobtj2
- · Replies 2 ·
Interpreting a Potential Energy Graph
- moxy
- · Replies 3 ·
How Much Force is Needed to Hold a Flagpole Motionless?
- thousandsaints
- · Replies 4 ·
How Do You Calculate Flow Rate and Water Level Change in a Tank with a Hole?
- fredrick08
- · Replies 7 ·
Why Does Heating a Flask Change Its Weight?
- qrt388
- · Replies 1 ·
Can parts of an isolated system at rest start moving?
- clarkandlarry
- · Replies 7 ·
Finding planet density from satellite orbital period
- Reverie29
- · Replies 6 ·