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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Can a Particle Sliding on a Rotating Rod Decrease in Distance Over Time?
- Saitama
- · Replies 36 ·
Quantum mechanics - Compton effect
- Feodalherren
- · Replies 11 ·
Non-consecutive forces and work energy theorem
- BrainMan
- · Replies 9 ·
Finding the charge on two balls in equilibrium
- Koan
- · Replies 5 ·
Ratio of Distances using Acceleration of Gravity
- Kabal
- · Replies 5 ·
Find current drawn from the cell
- utkarshakash
- · Replies 3 ·
Electric Field from Point Charges
- tristanm
- · Replies 3 ·
How Do You Calculate Capacitance in an AC Circuit with a Phase Difference?
- delsoo
- · Replies 3 ·
Solving the Two Capacitor Problem: Calculating Final Potential Difference
- Vibhor
- · Replies 2 ·
AZING! How does the Carnot cycle affect refrigerator efficiency?
- nightingale
- · Replies 6 ·
Calculating Heat Dissipation in a Circuit with Capacitors
- Tanya Sharma
- · Replies 7 ·
Path difference from time difference in Michelson-Morley
- physiks
- · Replies 2 ·
Optimal angle to pull a box against static friction
- Curieuse
- · Replies 2 ·
Does a voltmeter across a charged capacitor cause a short circuit?
- Phyba
- · Replies 4 ·
What is the net torque on a uniform rod rotating around a fixed pivot?
- Draggu
- · Replies 1 ·
How High Does the Apple Reach When Thrown at 55 Degrees?
- rlee1089
- · Replies 3 ·
Schutz First Course in GR Problem 15b, chapter 1. Mistake?
- guitarphysics
- · Replies 4 ·
How Do You Solve Capacitor Equilibrium Problems?
- Regtic
- · Replies 24 ·
Change of variables to evaluate the integral
- yis
- · Replies 3 ·
Breaking up the semi-circle into infinitesimally small rings
- spencerw105
- · Replies 1 ·
What is the Effect of Electrical Charges on the Attraction Between Two Humans?
- EliteCodexer
- · Replies 1 ·
Physics Lab - greatest common factor between all these numbers
- smakhtar
- · Replies 16 ·
A Question regarding stress/cross sectional area
- FaroukYasser
- · Replies 3 ·
Height at which pilot must pull out of dive before hitting 5g
- negation
- · Replies 56 ·
What are the variables used in laser equations?
- Paul Black
- · Replies 4 ·
Change in Energy Stored in a Capacitor Due to Removal of Dielectric
- teme92
- · Replies 2 ·
Cable car system : Tension in the pull cable
- Curieuse
- · Replies 4 ·
Electrons inside a carbon nanotube - Quatum Mechanics
- Feodalherren
- · Replies 3 ·
Force on a Magnet - Current Carrying Wire
- teme92
- · Replies 1 ·
What Are the Key Thermodynamics Concepts in These Questions?
- CAF123
- · Replies 1 ·
Why Is Tension at the Lowest Point of a Vertical Circle Significantly Higher?
- Karol
- · Replies 3 ·
Finding the Centre of Mass Speed for a High and Low Energy Photon Collision
- albega
- · Replies 1 ·
How Is Average Velocity Calculated in Multi-Stage Vector Displacements?
- Sullivan
- · Replies 3 ·
Fresnel's Equations/ Normal Incidence/ R and T coefficients.
- binbagsss
- · Replies 4 ·
Ampere's Law - Magnetic Field Strength
- teme92
- · Replies 9 ·
Force and Pressure on Hydraulic System
- BlackSideburns
- · Replies 3 ·
Calculating equivelent resistance and equivelent capaictance
- FaraDazed
- · Replies 10 ·
Resultant Moment Couple Problem
- Rico
- · Replies 2 ·
Non-consecutive forces with block and string
- BrainMan
- · Replies 3 ·
Block moving on an inclined plane
- utkarshakash
- · Replies 22 ·
Rotating particle (complex numbers)
- bawbag
- · Replies 1 ·
B field inside conductor with assymetric cavity
- Gauss M.D.
- · Replies 1 ·
Electric field of a line of charge with symmetry
- Regtic
- · Replies 2 ·
How Do You Calculate Uncertainty δd in Bragg Scattering?
- UncertaintyMan
- · Replies 3 ·
Viscosity as a function of temperature
- MexChemE
- · Replies 5 ·
Why Does My Current Density Calculation Fail Without Integration?
- cuongbui1702
- · Replies 4 ·
What is the average strain in a steel spike when struck by a 30kg sledge hammer?
- lordbolton
- · Replies 1 ·
Finding capacitor plate area with dielectric constant and strength
- mondroid
- · Replies 2 ·
Calculating Magnitude of Forces on a Door
- Daltohn
- · Replies 2 ·
How Much Friction Is Needed to Prevent Leakage in a Cubical Water Tank?
- burningnachos
- · Replies 2 ·
An elecetron is placed inside an infite box. Quantum Mechanics
- Feodalherren
- · Replies 2 ·
How Do You Calculate the Flow Rate from a Rectangular Opening in a Tank?
- burningnachos
- · Replies 1 ·
Waves in Semiclosed Tubes: Calculating Frequencies and Lengths
- CioCio
- · Replies 2 ·
First order phase transition/constancy of Gibbs
- CAF123
- · Replies 1 ·
Optic and waves design challenge about lasers
- elif93
- · Replies 1 ·
What is the spring constant for this spring?
- jannx3
- · Replies 5 ·
Calculating Entropy of Adsorbed Atoms on a Surface
- CAF123
- · Replies 14 ·
Calculating Work Done by a Constant Force on a Moving Body
- swarm17
- · Replies 8 ·
Calculate the moment of inertia
- asdff529
- · Replies 6 ·
How Does the Graph of 1/R Against E/V Relate to the Equation y = mx + c?
- Tangent100
- · Replies 27 ·
Detecting Phase sequence with light bulbs/ Short circuit voltage
- ESSVE
- · Replies 1 ·
Electrical circuits confirmation
- yesgirl10
- · Replies 7 ·
Do I Need to Include Minus Signs in Energy Conservation Equations?
- tmobilerocks
- · Replies 7 ·
What is the Coefficient of Friction in Conservation of Energy Problem?
- Karol
- · Replies 9 ·
How Does Expanding an Ideal Gas Affect Heat Absorption and Internal Energy?
- dk_ch
- · Replies 8 ·
Which angle is theta and when do I use sin or cos?
- c_programmer
- · Replies 5 ·
Light entering equilateral prism normally: angle of incidence on surface A-B
- batcave1985
- · Replies 3 ·
How far can your voice carry at 40 dB?
- Kavorka
- · Replies 1 ·
Elastic collision between ball and block
- utkarshakash
- · Replies 63 ·
How does period compar- Don't understand solution
- eidyllion
- · Replies 2 ·
How to Calculate the Length of a Capillary Tube for a Drip-Irrigation Emitter
- maxnormal
- · Replies 3 ·
Pressure flow as a function of area
- DocZaius
- · Replies 7 ·
Calculating Liquid Height Difference in U-Tube | Fluid Mechanics Homework
- bennyq
- · Replies 4 ·
Understanding Pressure Drop Calculations in Fluid Mechanics
- kachi
- · Replies 6 ·
Power of constant force for a given displacement
- sunquick
- · Replies 4 ·
Kinetic friction and distance problem.
- johnf34
- · Replies 2 ·
How Do You Calculate Uncertainty in Mean Difference?
- selsunblue
- · Replies 4 ·
Lens and mirror question, can't understand solution
- angelelizabeth
- · Replies 1 ·
How large is the force that tightens the wire
- Daltohn
- · Replies 11 ·
Finding Angular Velocity of a Torsion Spring Assembly
- qweazy
- · Replies 20 ·
Find the velocity of the 14kg mass just before it hits the ground
- PeterPeter
- · Replies 7 ·
Understanding Power Dissipation in Resistors and Ohm's Law
- delsoo
- · Replies 4 ·
What exactly do the terms near-field and far-field mean?
- s3a
- · Replies 16 ·
Loop-the-loop normal force problem. Possible textbook error?
- zakh508
- · Replies 5 ·
Why is the current not zero in part e of this Kirchoff's Law problem?
- Regtic
- · Replies 7 ·
Having trouble finding equation of one question.
- Sullivan
- · Replies 6 ·
What is the relationship between electric potential and work?
- maskerach
- · Replies 2 ·
Convex mirror question how long the image is?
- batcave1985
- · Replies 4 ·
What is the correct wavelength of the light provided by the laser?
- vanceEE
- · Replies 6 ·
Dynamics of a Cord: Solving Tension for Arlene
- ciubba
- · Replies 3 ·
Does gravitational potential energy always use center of mass height?
- darksyesider
- · Replies 1 ·
Free falling object violating conservation of energy?
- Nanosuit
- · Replies 19 ·
Odds of Collision between Incident Object and Target Objects
- thepopasmurf
- · Replies 1 ·
Finding equivalent resistance when no current flows through the middle resistor
- jaredvert
- · Replies 12 ·
Charge q located a large distance from a neutral atom
- gfxroad
- · Replies 3 ·
Did the book make a mistake? Air friction and Drag-Force problem
- Nathanael
- · Replies 2 ·
Direction and velocity vector problem
- timnswede
- · Replies 2 ·
Normal force on block placed on incline.2 approaches different result
- Curieuse
- · Replies 7 ·
Calculating Gravitational Potential Energy of a Fluid Above a Reference Line
- cwrn
- · Replies 1 ·