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 to Determine Surface Charge Densities on a Conducting Cylinder?
- Gale
- · Replies 2 ·
How to design a resonance experiment with metal strips
- Acidvoodoo
- · Replies 8 ·
Geometry of Sphere: Find All Points on Circle in Sphere
- kevinalm
- · Replies 4 ·
[Physical Science] Finding Density, Mass, or Volume
- Jessi
- · Replies 3 ·
Solve Algebra Word Problem: x+1/x - 1/4 = x+3/x+2
- homegrown898
- · Replies 2 ·
Proving Inner Product Spaces w/ (1+x^2) Defined on V
- Oxymoron
- · Replies 2 ·
Calculating Decimals for Expressions
- dagg3r
- · Replies 2 ·
How far apart are two electrons in an electric field?
- Physically Impaired
- · Replies 3 ·
Finding coil turns from charge during electromagnet shutdown
- adrianx
- · Replies 2 ·
How Do You Solve a Riccati Differential Equation?
- yoyo
- · Replies 4 ·
What is the tangential acceleration of a point
- RPDuece
- · Replies 7 ·
Calculating Density of a Dye in PMMA Sample
- Hypnotoad
- · Replies 2 ·
Determining Planck's Constant Using Diffraction Patterns of X-rays and Electrons
- Steph
- · Replies 2 ·
How Fast Will the Bowling Ball Swing at a 10-Degree Angle?
- monky
- · Replies 4 ·
Simple Harmonic Motion Question
- descartes75
- · Replies 2 ·
Calculating Air Resistance on a Space Shuttle Glider During Test Flights
- Link
- · Replies 2 ·
Why Do Sound Waves Cancel Each Other Out?
- Spyder22
- · Replies 2 ·
Electric Force of two hemispheres
- TimNguyen
- · Replies 6 ·
Few sentences related to a work concept.
- primarygun
- · Replies 4 ·
Simplifying Loga Root Expression
- novice
- · Replies 2 ·
Double slit interference and single slit diffraction problems
- Naeem
- · Replies 3 ·
What are the nth roots of unity?
- Hoplite
- · Replies 3 ·
Solving Diffraction Problem: Calculating Slit Width with He-Ne Laser
- Naeem
- · Replies 2 ·
Understanding EMF When Area Vector is at 90° with B
- admajoremdeigloriam
- · Replies 2 ·
Trouble graphing and working out functions
- Solidmozza
- · Replies 2 ·
Calculating Resistances in Parallel and Series: A Tricky Problem Solved
- NotaPhysicsMan
- · Replies 4 ·
How to Find the Area Bounded by Two Complex Curves?
- ProBasket
- · Replies 2 ·
Conjugate Hyperbola: Find Equation w/ Asymptotes y=+/-2x
- blue_soda025
- · Replies 3 ·
Kinetic friction of box down a ramp
- runner1738
- · Replies 2 ·
Bar on Roller Spinning and Translating: Force Impact?
- Dyls
- · Replies 2 ·
Optics: Finding the Diameter of the Image of the Moon through a Telescope
- zoetrope
- · Replies 3 ·
What Are the Possible Values for R in a Parallel/Series Resistor Setup?
- NotaPhysicsMan
- · Replies 3 ·
Modelling Air Resistance using Differential Equation
- $id
- · Replies 4 ·
Total resistance in parallel circuits
- Hologramdr
- · Replies 3 ·
Induced emf in a square loop in a time-varying magnetic field
- robert25pl
- · Replies 6 ·
Finding intersection of 2sin(θ)-1 and 3cos(θ)+2
- aisha
- · Replies 18 ·
Can a Straight Line Divide a Thousand Points Equally?
- DivineNathicana
- · Replies 6 ·
Car collision skid mark physics
- whereisccguys
- · Replies 6 ·
How Do You Calculate the Second Derivative Using Implicit Differentiation?
- erik05
- · Replies 3 ·
Year 12 physics - thin films question
- ash
- · Replies 5 ·
Convert mm/s to m/s for Electron Drift Velocity
- prybrr
- · Replies 2 ·
Optics - What is the magnification of this image
- FAIRMADIEN787
- · Replies 3 ·
Resistivity Coursework problem
- emikkime
- · Replies 4 ·
Is the voltage from point A to B equal to the voltage across R2?
- EvLer
- · Replies 7 ·
Determining charge on capacitor
- haribol
- · Replies 4 ·
Finding the first nodal line from two point sources
- Physicsisfun2005
- · Replies 2 ·
Answer: Understanding Ruby Laser Energy Levels and Pumping: Cr+3 Ion Diagram
- shaiqbashir
- · Replies 2 ·
Finding axes and center of ellipses from equations
- trigger352
- · Replies 2 ·
Which Truck Has Greater Momentum If Both Have the Same Kinetic Energy?
- toittoiger
- · Replies 7 ·
Calculate Volume of Object Thrown into Ocean
- elemnt55
- · Replies 2 ·
How to stop a fast moving electron
- JamesJames
- · Replies 15 ·
Finding m so that x² - 2x - m|x - 1| + m² = 0 has solutions
- maxpayne_lhp
- · Replies 7 ·
Volume of Solid Rotated About x=3, Region Bounded by x=1-y^4, x=0
- ProBasket
- · Replies 2 ·
Recommended physics exercise sites for electromagnetism and quantum physics
- CartoonKid
- · Replies 3 ·
Physics true/false questions v. isolated parallel plates
- Gonger
- · Replies 5 ·
Physics Spring Question: Block Position with Applied Force of 2.8 N
- rulers14
- · Replies 3 ·
How to Calculate Ground Conductivity with Hemispherical Electrodes?
- meteorologist1
- · Replies 3 ·
Calculating Speed and Energy: Questions on Distance, Power, and Time
- lcg
- · Replies 3 ·
The Effect of Electric Field on Proton Motion
- Soaring Crane
- · Replies 8 ·
How Can We Derive the Wavelength Sum Formula in Electron/Positron Annihilation?
- Feynmanfan
- · Replies 5 ·
Finding dy/dx for y = x ln x
- footprints
- · Replies 8 ·
Work done by kinetic friction on a refrigerator pulled at an angle
- zizikaboo
- · Replies 2 ·
Summand part in summation notation
- aisha
- · Replies 12 ·
Finding Acceleration of 16.5kg Suitcase Given Forces
- shawonna23
- · Replies 8 ·
Potential energy and a skateboard, only have until 11:30
- kpangrace
- · Replies 2 ·
Calculate Impedance of AC Circuits with 1.20kΩ Resistor and 6.8μF Capacitor
- airkapp
- · Replies 4 ·
Meet the Fockers: Movie Review and Critique
- Poweranimals
- · Replies 1 ·
Evaluating Potential of A Uniformly Charged Circular Ring - kQ/a
- Phymath
- · Replies 7 ·
What Force Maintains a Constant Velocity for a Water Skier?
- shawonna23
- · Replies 2 ·
Find the charge on each capacitor
- Gonger
- · Replies 3 ·
Most likely an easy Integration problem
- apchemstudent
- · Replies 12 ·
True/false statements on projectile motion and energy conservation
- xelda
- · Replies 6 ·
Does My Triple Integral for a Cylinder's Volume Bounded by Planes Seem Correct?
- ninjacookies
- · Replies 4 ·
Solving Algebra Problem for Limit as n Goes to Infinity
- bemigh
- · Replies 2 ·
Finding Heat of Reaction for MgSO4 and Ba(NO3)2 Solution Mixture
- erik05
- · Replies 3 ·
Can a Website Show Historical Moon Phases and Sky Positions for My Location?
- ndogg
- · Replies 5 ·
Why laser light is mono chromatic
- mohdfasieh
- · Replies 2 ·
Circular motion of two wires and a ball
- flyguyd
- · Replies 2 ·
Physics Newtons 3rd/2nd law problem
- oldunion
- · Replies 3 ·
Electron Beam Heat Up Time Calculation
- misogynisticfeminist
- · Replies 6 ·
Understanding Gauss's Law and Electric Field Distributions
- PhysicsNewb
- · Replies 3 ·
Calculating Density of Helium Gas at Different Temperatures
- laker88116
- · Replies 16 ·
Second order term in relativistic vs classical Doppler shift
- stunner5000pt
- · Replies 2 ·
Do Trucks with the Same Kinetic Energy Have Different Momenta?
- hahaha
- · Replies 8 ·
Capacitance of two spherical conductors
- funkwort
- · Replies 7 ·
Find volume of object if cross-sections are known
- ProBasket
- · Replies 2 ·
How much weight must be dropped to make a balloon rise 105m in 15s?
- Winner
- · Replies 9 ·
If I don't solve these two problems, I'm gonna lose $60
- alexgott_iscool
- · Replies 9 ·
Calculating Work Done with a Series RC Circuit with Variable Plate Spacing
- wheatmaster
- · Replies 2 ·
Find the distance of the image from the right edge of the sphere
- stunner5000pt
- · Replies 8 ·
Force between masses in a square and asteroid orbital period
- o04jjang
- · Replies 2 ·
Can Set Theory Identity (A-B) ∪ (B-C) = (A ∪ B) - (B ∩ C) Be Proven?
- SpatialVacancy
- · Replies 2 ·
Solving x^3-6xy+6=0: Implicit Diff. or Quotient Rule?
- erik05
- · Replies 5 ·
Solving Riccatti Equation: 2nd Order Diff. Eq.
- yoyo
- · Replies 5 ·
Calculate Volume of Solid Rotated about y=4
- ProBasket
- · Replies 11 ·
New intregral same old problem
- Phymath
- · Replies 4 ·
Projectile explodes at peak where will it fall?
- jaymode
- · Replies 2 ·
Solving √2 sin θ = √3 - cos θ for 0 < θ < 2π
- aisha
- · Replies 12 ·