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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Force current between an Infinitely Long Wire and a Square Loop
- brunch43
- · Replies 7 ·
Question about symmetry with potential fields.
- mateomy
- · Replies 10 ·
Calculating Forces Acting on a 50m Bridge with Two Supports: A Torque Question
- kc0ldeah
- · Replies 1 ·
How to find the time of two object passing each at opposite direction.
- louis676
- · Replies 5 ·
Fluid Dynamics: Waterflow out of a Tank
- Noorac
- · Replies 4 ·
Classic Hole through Earth Problem. Period of Oscillation with Varying Density.
- BeeBopTop
- · Replies 13 ·
Why is the calculated change in PE for a mass on a spring incorrect?
- Emilyjoint
- · Replies 1 ·
Define 2nd law of thermodynamics in two ways
- ZedCar
- · Replies 1 ·
Simple Pendulum Centripetal Acceleration
- robwashere
- · Replies 2 ·
Horizontal Spring, Find Unstretched length
- ZxcvbnM2000
- · Replies 4 ·
Calculating Pressure w/ Nitrogen Molecules: Where to Start?
- cuddlylover
- · Replies 2 ·
Magnetic Field near a curving infinite wire in 3d space
- speedofdark8
- · Replies 4 ·
Magnetic field direction created by rectangular circuit
- yvesers
- · Replies 1 ·
Heisenburg Uncertainty Principle - Seems like an easy question?
- tnbstudent
- · Replies 3 ·
An ideal (lossless) transformer has 4 times as many turns
- bckcookie
- · Replies 1 ·
Thermal expansion of a copper cylinder
- dan_and_sim
- · Replies 1 ·
Elevator going down; Main energy transformation?
- magiclink
- · Replies 2 ·
Kirchhoff's Law Help: Solve Voltage & Current for Circuit
- womatama
- · Replies 2 ·
The angle of the first order diffraction
- cake_is_a_lie
- · Replies 2 ·
Initial energy of a charged particle
- skweeegor
- · Replies 3 ·
How Do Slits and Gratings Create Light Patterns You See?
- sparkle123
- · Replies 7 ·
Ideal Heat Engine: Input Temp Change, Exhaust Temp Change?
- cuddlylover
- · Replies 7 ·
Rotation : When will the rod slide off?
- AlchemistK
- · Replies 11 ·
Question about changing magnetic flux
- Dany7777777
- · Replies 1 ·
Coefficient of friction problem
- xxpbdudexx
- · Replies 3 ·
Work required to disassemble a helium atom
- tevatron1
- · Replies 2 ·
Emf in a conducting rod moving away from a wire with current I
- Mauvai
- · Replies 1 ·
Grade 12 Circular Motion Question
- mrcheeses
- · Replies 7 ·
Compute ΔB seen by a magnetometer flown on a satellite
- harlowz2
- · Replies 3 ·
Magnetic Flux Through Wire Loop
- bspride
- · Replies 3 ·
Atomic density of argon in liquid and gas form
- EmmaLemming
- · Replies 6 ·
Heat released by mercury while filling up the tube
- mazhius
- · Replies 1 ·
Internal Energy of Falling Stone in Vacuum: Is ΔU Zero?
- ketz
- · Replies 1 ·
Solving for Electric Field at Wire Surface: Homework Exercise
- Rider4
- · Replies 4 ·
Ideal Gas Law with spring, no numbers, closed container
- MrMaterial
- · Replies 9 ·
Check work on kinematics problem
- caperjay
- · Replies 3 ·
Calculating flux when charge on vertex of cube
- TsAmE
- · Replies 2 ·
Where Electric Field Strength + Potential are Zero?
- karine
- · Replies 1 ·
Role of mass in this problem on electrostatics
- Dranzer
- · Replies 2 ·
Voltage, real reactive power question
- debwaldy
- · Replies 4 ·
Tangential and Radial Acceleration
- blob84
- · Replies 3 ·
Need help finding temperature-volume relation in solving Adiabatic problem
- defmar
- · Replies 8 ·
How can i find the Potential difference?
- yy205001
- · Replies 4 ·
Calculating Work to Put Spacecraft in Orbit
- AudenCalbray
- · Replies 17 ·
Ratio of Kinetic Energies for Two Moving Charges in Uniform Electric Field
- Kishor Bhat
- · Replies 11 ·
What type of molecule has the highest average speed in a room filled with gases?
- PeachBanana
- · Replies 2 ·
How do i find the coefficient of friction
- adorrea
- · Replies 4 ·
Finding the initial velocity of an object
- adorrea
- · Replies 1 ·
(easy) Isobaric processes mastering question
- bikeman86
- · Replies 2 ·
General special relativity question
- channel1
- · Replies 2 ·
Time For A Car To Reach A Truck
- Bashyboy
- · Replies 5 ·
Calculating Force & CG of False Mud Gate Made of Steel
- bcd201115
- · Replies 2 ·
What is the intensity of sound 2?
- eagles12
- · Replies 1 ·
Speed of Waves traveling on a taut string
- eagles12
- · Replies 1 ·
Frequency of two objects moving toward eachother
- eagles12
- · Replies 3 ·
Sound Waves Traveling Down a String
- eagles12
- · Replies 1 ·
Coefficient of kinetic friction on 2 different parts
- yannguyen
- · Replies 4 ·
Infinitely tall tree falling in a forest
- ttzhou
- · Replies 8 ·
Euler's Equations, a freely rotating lamina
- Oijl
- · Replies 2 ·
Multiple-choice question, Electric field and potential
- goodstudent
- · Replies 2 ·
What's the relationship between UA, Ub and Uc?
- pepsico007
- · Replies 1 ·
Could given function represent a travelling wave?
- wirefree
- · Replies 3 ·
How Do You Calculate Torque in Bicycle Chain Drives?
- mazz1801
- · Replies 3 ·
Magnetic Flux Calculation: Square Loop in 0.5T Field
- domyy
- · Replies 1 ·
Motion of a Uniform Stick on a Frozen Lake After an Impulse
- ZxcvbnM2000
- · Replies 9 ·
How Do You Calculate Final Pressure in an Expanding Gas Scenario?
- cuddlylover
- · Replies 6 ·
Frictional Forces and Two dimensional constant acceleration problem
- Zach Lunch
- · Replies 2 ·
Electric field due to a charge density.
- FLms
- · Replies 9 ·
Physics bullet in wood; I can't figure it out?
- x86
- · Replies 4 ·
A question related to radioactivity.
- DarkStalker
- · Replies 1 ·
Finding the length of a box confining an electron?
- HenryHH
- · Replies 3 ·
What is the Electric Field in a Ball with a Positive Charge at R/2?
- dannee
- · Replies 1 ·
Nuclear Fusion Q: Create Radioactive Substances?
- incarcerate
- · Replies 2 ·
Initial velocity of soccer ball and length of time in the air- projectile motion
- dani123
- · Replies 9 ·
Torque Calculation. Short- Am I correct?
- mazz1801
- · Replies 7 ·
Calculating Work with a Variable Force
- physics79
- · Replies 4 ·
Determine acceleration when lifting a bucket.
- zeralda21
- · Replies 6 ·
How to Calculate Comet Halley's Distance from the Sun Using Kepler's Laws
- bcd201115
- · Replies 1 ·
How is Work Calculated in an Electric Field?
- jsmith613
- · Replies 1 ·
Latent heat and final temperature
- kimkibun
- · Replies 4 ·
Molecular Diameter Units: Understanding the Meaning of pm
- ZedCar
- · Replies 2 ·
Solve this algebraic equation for 'D' (Hydraulics)
- TimmehTyme
- · Replies 1 ·
Harmonic Oscillator in Dirac Theory
- eones
- · Replies 3 ·
Non inertial or inertial reference frame?
- Lengalicious
- · Replies 20 ·
Heating Mercury Affecting Floating Lead
- JSGandora
- · Replies 1 ·
A kirchoff's law question with multiple batteries
- Chester8990
- · Replies 3 ·
Related to Constant acceleration
- HelpMeHelpYou
- · Replies 7 ·
Frame of reference and relativity.
- bayan
- · Replies 2 ·
Rearrangement of a complex radiation formula
- murdrobe
- · Replies 6 ·
Calculating Angular Acceleration in Judo Foot-Sweep Move
- Batz74
- · Replies 6 ·
Calculating Heat Required to Heat Water from 15.5°C to 85°C
- kimkibun
- · Replies 1 ·
Solve Quantum States: n=6, l=1 Hydrogen Atom
- jessiewills
- · Replies 3 ·
Guitar acting as a helmholtz resonator. Explanation?
- jackscholar
- · Replies 1 ·
Calculate open pipe length given resonance.
- seker
- · Replies 3 ·
Law of conservation of momentum problem?
- abrowaqas
- · Replies 5 ·
Centrifugal Force and the Path of a Moving Particle in a Rotating Tube
- azizlwl
- · Replies 3 ·
Graphical Analysis Question - Torque, Angular Displacement
- Tempest Desh
- · Replies 4 ·
Why can't frequency of an electromagnetic wave change?
- some_letters
- · Replies 1 ·
What Is the Focusing Range for a 45 mm Lens on an SLR Camera?
- HenryHH
- · Replies 3 ·
Calculating Heat Required for Water Temperature Change
- kimkibun
- · Replies 3 ·