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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How Do Skaters' Velocities Change After Grabbing a Pole?
- efitzgerald21
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I=5.805 kgm^2San Francisco YoYo Acceleration and Tension Calculations
- efitzgerald21
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Understanding Orders of Magnitude: Clearing Up Confusion | Homework Help
- liamporter1702
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Calculating the Equation of a Transverse Wave
- puhdanks
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Derivations - What's Acceptable?
- BOAS
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Kepler's Law to Determine Period of Asteroid
- scrambledeggs
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What do the I's stand for in attenuation and power loss equations?
- calculator20
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How Much Can Block A Weigh Without Block C Slipping Off?
- ashimashi
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Who Will Win In a Downhill Race?
- physicStudent
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Why didn't we need to calculate the x-component in our pulley system lab?
- santoki
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Magnetic forces and particle of mass
- vanitymdl
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Calculating the Speed of a Cricket Ball with Drag Force: Homework Problem
- bennyq
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How to find weight moving from the Earth's core up?
- Garretg06
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Infinitely Long Wire with Loop (Magnetic Field)
- Hitchslaps
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Does Pulling or Pushing Reduce Friction More When Moving a Crate?
- santoki
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Does Heat Affect Friction in Tires?
- dp86
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Does Air Resistance Cause a Ball to Take Longer Falling Down Than Rising Up?
- yoyo16
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Angular acceleration of a falling arm
- usernamed2
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Block-on-Block attached by String to Block in Pulley on Incline
- Keena
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Testifying in a case involving an accident
- negation
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Finding coefficient of kinetic friction without mass
- MakGriffith143
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Weight in an elevator? Free body diagrams
- Henrybar
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Thermodynamics - reversible isothermal cycle
- Feodalherren
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Help understanding current source
- mango21
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Calculating Efficiency of a Solar Cell Indirectly
- aaron@pitt
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Astrophysics Project: Data Collection
- fu11meta1
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Two particles connected by a spring
- elevenb
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How to Calculate Image Position and Magnification for a Camera Lens?
- GoodOldLimbo
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Length of cooling including latent heat
- VoorMMMMMM
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Find the power of the light bulb
- TwinCamGTS
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Solving a convex mirror problem
- Jack.P
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Does entropy increase in this process
- utkarshakash
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Ball rolling down slope (with wedge-shaped groove)
- BenjyPhysics
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How do I estimate hours of use and find power for appliances?
- aboojoo
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Maximum angular velocity from a swing carousel
- piisexactly3
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Photon collides with stationary electron
- BenjyPhysics
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Thermodynamics - Adiabatic Compression
- ghostops
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How Does Phasor Simplification Apply to wLT /_ theta?
- eterna
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Entropy Change from Sun to Earth: 1000 J Radiation Transfer Calculation
- Feodalherren
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Simple Harmonic Motion: Ball on Spring with Mass and Compression Calculation
- puhdanks
- · Replies 7 ·
Magnetic flux through a rectangular loop near a current-carrying wire
- Flop880
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Electromagnetism: find the laplace force
- jasmine-
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What is the frictional force between two objects on an incline plane?
- endaman95
- · Replies 8 ·
Conservation of energy for a collision
- Norules
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Hydrogen Gas Transparency With Visible Light
- Neek 007
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RPM required to simulate Earth's gravity (Centrifugal acceleration)
- jwlgrant
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How Does Decreasing Wire Current Affect a Nearby Metal Rectangle?
- bbuilder
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What Does a Thermionic Cloud Look Like?
- Kincaid K.
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Find Height of Elevator at T_1: K&K Q1.17
- Radarithm
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Why Does an Electron Move from High to Low Electric Potential Energy?
- stormagedon
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Relationship between Induced Current and Current in a Wire
- bbuilder
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Eye Resolution: Calculating the Limit and Overcoming Obstacles
- physiks
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Pressure drop across an orifice (orific drop in meters?)
- scottniblock
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Blocks and Strings, Force Analysis
- phoenixXL
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Pressure drop across an orifice (Orifice pressure drop in meters?)
- scottniblock
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Light - reflection in two facing mirrors
- HalcyonicBlues
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Uniform Circular Motion and Centripetal Force
- AJayS
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Calculate Longest & Shortest Wavelength?
- P1nkButt3rflys
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Vertical spring (trampoline) compresion.
- Sane Co.
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Corrected.Finding the Energy and Work in a Carnot Cycle
- Feodalherren
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Integral of voltage time means?
- almaand
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What is the Y-component of T1 and T2?
- rickstarr93
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Diffraction gratings and young's double slit experiment
- physiks
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Energy Question - Chain sliding off frictionless table
- dsy5037
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How much force is required to stop a space ship?
- Dustinsfl
- · Replies 18 ·
Laws of Motion-magnitude/accel-Gerry has mass issues
- a.k
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Kinematics: Find Displacement in 2x Time w/ Constant Acceleration
- joaolucas
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Finding current through resistor (Kirchhoff's Laws)
- BMcC
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Grade 11 Intro to Physics question - distance a football travels
- FirstPhysics
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Normal Reaction Forces on a Moving Car
- wai1997401
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Simple question about zero gravity and weightlessness
- QuickDraw
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Momentum of a particle, I have x and y componants of momentum
- rwooduk
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Calculating Acceleration of Hanging Mass System
- physicos
- · Replies 9 ·
Net impulse and what objects exerts force
- savaphysics
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Will Reflected Light Be Eliminated by Interference in These Thin Film Scenarios?
- blue_lilly
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Doppler Shift: Communication from a Space Probe
- blue_lilly
- · Replies 8 ·
Does the Normal Force Do Work on an Inclined Plane?
- endaman95
- · Replies 6 ·
Intensity in double slit interference
- physiks
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Finding the Number of Currents in a Circuit: Tips and Intuition
- oneplusone
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The amplitude of sound waves from two nearby speakers
- anhhuyalex
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A photon and electron collision
- feliciasutanto
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Earth's Magnetic Dipole Moment
- majormaaz
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How Do You Calculate Current and Terminal Voltage in a Mixed Battery Circuit?
- qety6321
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How to Choose Prefix for Physics Exam
- SwedishFred
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Single bead on a vertical circle.
- alingy2
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Finding the volume of air in a box when it's lowered into water?
- PhyIsOhSoHard
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Calculating Final Velocity with Given Work and Mass
- dasher141
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Determine potential difference (circuits)
- kyle
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How Much Work Is Required to Move a Refrigerator Across a Frictional Surface?
- physicos
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Memorizing C.V. Raman's Effect: Tips & Tricks
- smart_worker
- · Replies 6 ·
How do I calculate the acceleration of a particle in a parallel plate capacitor?
- temaire
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Electron Motion in Charged Plate Region: Time, Distance, and Velocity Components
- mssnamu
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Should optical cables be water tight? Geometric optics
- carnivalcougar
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Potential and Kinetic Energy on a swing as well as Tension in the rope
- lesleymarie785
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How Much Power Does a Trimmer Motor Deliver During Acceleration?
- MD_Programmer
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Observing M87's spectral of light
- bobo1455
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How Does a Rower's Speed and River Current Affect Crossing Time?
- littlebearrrr
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Torque with constant circular velocity
- Matejxx1
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Laws of Motion- dropping book off building with a twist
- a.k
- · Replies 8 ·
Finding the magnitude necessary to balance two forces
- Shadow236
- · Replies 2 ·