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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Why can momentum be expressed as an operator
- bfusco
- · Replies 1 ·
Newton law of universal gravitation
- Tiven white
- · Replies 3 ·
Tutorial In Introductory Physics: charge
- Salamandersam
- · Replies 1 ·
A stone is thrown vertically upward.
- PHYSStudent098
- · Replies 10 ·
Heat transfer question - Graphing temperature versus radius
- theBEAST
- · Replies 11 ·
Does constant speed affect acceleration?
- Tiven white
- · Replies 1 ·
Radius of a planet, given the density
- s.dyseman
- · Replies 3 ·
Calculating Apparent Depth of Print Beneath Flint Glass Plate
- Aoiumi
- · Replies 2 ·
What is the initial velocity of the second stone dropped into the river?
- jdawg
- · Replies 18 ·
Are these free-body diagrams correct (mass-spring-damper system)?
- kal854
- · Replies 4 ·
Ski tow power needed with 60% friction losses
- Speedking96
- · Replies 5 ·
2007 F=ma exam number 28 bicycle
- licantroleon
- · Replies 13 ·
Can a 66kg Person Sit on a 24kg Table Without Tipping?
- ajcoelho
- · Replies 3 ·
Wire with mass at midpoint: why is my extension calculation wrong?
- Dumbledore211
- · Replies 13 ·
How Much Tensile Load Can a Bolt Withstand?
- KiNGGeexD
- · Replies 9 ·
Gauss's Law Problem - Spherical Shell with Non-uniform Charge
- MichelCarroll
- · Replies 4 ·
Calculating the effect of humidity volume and temp of compressed air
- InquisitiveOne
- · Replies 2 ·
Calculating Time and Displacement for Non-Constant Acceleration
- ItsImpulse
- · Replies 4 ·
Difference between paramagnetism and ferromagnetism
- Denver Dang
- · Replies 2 ·
Distance between memory and processor
- Chemp_93
- · Replies 13 ·
Electronics (Circuit Analysis) Questions
- stefan10
- · Replies 2 ·
Centrifuge Problem (Circular Motion)
- GoodOldLimbo
- · Replies 2 ·
Bar on inclined slot on one end
- TheFerruccio
- · Replies 10 ·
Why Are Electrons Not Attracted to Holes in a MOSFET Without Gate Voltage?
- Denver Dang
- · Replies 3 ·
Why Must the Initial Hill Be 1/2 R Higher Than the Loop?
- aerospacedout
- · Replies 11 ·
Why does a textbook define focal point as where parallel rays converge?
- adjacent
- · Replies 9 ·
How many hours until ice on lake freezes from 5.78ft to 6.76ft?
- Sorbik
- · Replies 12 ·
Solving Physics Problems: Coin Down an Incline
- Jon.G
- · Replies 5 ·
Superposition of waves - constructive or destructive interfernce?
- Alzir
- · Replies 5 ·
What is the Radius of Curvature at Point B on the Road?
- LeFerret
- · Replies 6 ·
Charge, before and after two touching objects.
- contrivance
- · Replies 3 ·
Does the Lorentz equation preserve causality?
- silenzer
- · Replies 3 ·
Why Does Kirchoff's Second Law State That Voltages in a Closed Loop Sum to Zero?
- princejan7
- · Replies 3 ·
Grade 12 Physics-Finding the Spring Constant
- physicsjunkie1
- · Replies 28 ·
Why do rod and cylinder have different moments of inertia with same mass and length?
- student34
- · Replies 2 ·
How Do Wave Interference and Velocity Relate in Real-Life Scenarios?
- thatoneguy6531
- · Replies 3 ·
Integrating Velocity: Distance = bt^3/3
- Qube
- · Replies 5 ·
When does the partition function factor for independent systems?
- NewtonApple
- · Replies 3 ·
Voltage divider (circuit analysis)
- Miike012
- · Replies 2 ·
What is the equation of motion for a launched spherical stone?
- hvthvt
- · Replies 12 ·
Finding the second displacement from the first and resultant
- Synthase
- · Replies 2 ·
Time Dilation/Length Contraction Question?
- lee_sarah76
- · Replies 1 ·
How do you find the direction when adding two vectors?
- emlekarc
- · Replies 3 ·
Flux density inside and outside a coaxial cable.
- lam58
- · Replies 1 ·
Mass of sculpture given fm, mass, lengths etc
- tg22542
- · Replies 2 ·
Movement of bacterium in the microscope
- negation
- · Replies 4 ·
How to use the energy equation for SHM to find the position at a given velocity?
- Oneablegal
- · Replies 2 ·
Energy and cost savings from turning down the thermostat?
- Sorbik
- · Replies 7 ·
Charged sphere hanging from a string-Find the charge?
- Hayliee30
- · Replies 4 ·
Find centre of mass of a lamina.
- Calu
- · Replies 1 ·
Impact velocity for spring-mass impact shock test device
- m3atwad
- · Replies 5 ·
Two Electric Dipoles-Net Charge of Zero
- cactusblanket
- · Replies 4 ·
Verifying coherence time formula with g(t) = e^(-|t|/t_c)
- Observer Two
- · Replies 2 ·
Electric potential due to two point charges near origin
- raving_lunatic
- · Replies 1 ·
Prove that the absolute value of a dot product is less than or equal t
- speny83
- · Replies 2 ·
Calculating Initial Velocity of a Basketball Shot
- Mgh3
- · Replies 1 ·
How to Calculate Absolute Error Correctly?
- JessicaJ283782
- · Replies 1 ·
Torque and Tension Problems. How to answer these problems?
- carterwrangler
- · Replies 4 ·
Electric Forces, Balloon Problem
- NATURE.M
- · Replies 13 ·
Solving for Spring Stretch with Two Blocks of Mass m/2
- thonwer
- · Replies 32 ·
Momentum conservation question.
- cragar
- · Replies 1 ·
Conservation of moentum and a spring.
- JohnGG
- · Replies 7 ·
Calculating Electron Density of States at Dirac Point in Graphene
- Aelo
- · Replies 1 ·
Projectile Motion launch angles
- Jon.G
- · Replies 2 ·
What is the equation for uniform electric fields?
- CookieSalesman
- · Replies 2 ·
Checking signs in Kirchhoff's laws circuit problem
- frazdaz
- · Replies 4 ·
How Should a Ferryboat Navigate a River with Flowing Water?
- negation
- · Replies 29 ·
What is the voltage drop across a diode when it's on?
- theBEAST
- · Replies 11 ·
Ideal diatomic gas undergoing adiabatic compression
- hvthvt
- · Replies 1 ·
Average Velocity: Find the Answer
- Qube
- · Replies 2 ·
Calculating apparent separation
- bobo1455
- · Replies 3 ·
Calculate the final temperature of the metal.
- bad at math gu
- · Replies 2 ·
RC Circuits, capacitor charges and voltages
- lovelyrwwr
- · Replies 15 ·
What Are the Units of a and b in the Velocity Equation?
- Qube
- · Replies 1 ·
Do the forces on two blocks attached together differ when pushed from opposite sides?
- thonwer
- · Replies 9 ·
How to harness current from piezoelectric plates to charge a phone?
- cnichols1999
- · Replies 23 ·
Friction coefficient multiple choice and ladder problem
- cracktheegg
- · Replies 3 ·
Work of pulling sleigh in the top of the hill including the friction
- Xaime
- · Replies 1 ·
How Does an Object's Acceleration Affect its Initial Velocity?
- negation
- · Replies 12 ·
The sum of two vectors, A→ + B→
- negation
- · Replies 11 ·
What is the significance of the displacement in this system?
- binbagsss
- · Replies 5 ·
When is a particle with given position function at rest or accelerating?
- negation
- · Replies 16 ·
Neutral atom and a point charge
- tuggler
- · Replies 5 ·
How far can a golf ball travel on the moon?
- negation
- · Replies 25 ·
Question about choosing which Physics equation to use?
- JessicaJ283782
- · Replies 1 ·
How to Calculate the Total Number of Particles in Different Energy States?
- NewtonApple
- · Replies 2 ·
Thermodynamics, engine cycles , entropy, concepts.
- binbagsss
- · Replies 23 ·
Projectile motion cannon ball angle
- Asdf123
- · Replies 4 ·
Orbital velocity of Ganymede and Callisto
- Steins
- · Replies 1 ·
Conducting bar on a rail question
- lovelyrwwr
- · Replies 19 ·
How can friction force tell if an object is moving?
- utube9195
- · Replies 8 ·
Calculating Coulomb Forces Between Point Charges
- Sneakatone
- · Replies 5 ·
Average speed for half distance vs half time at different speeds
- emlekarc
- · Replies 6 ·
Calculating the Force between Hydrogen Atoms using Potential Energy
- ubermuchlove
- · Replies 8 ·
Stopping a car before collision
- hav0c
- · Replies 1 ·
What are the strength and direction of the electric field
- SIL3NTK0D3R
- · Replies 2 ·
What are the dimensions of intensity?
- Old Guy
- · Replies 1 ·
Why is my solution for real diode analysis wrong?
- theBEAST
- · Replies 5 ·
Can a circuit have parallel paths if the resistors aren't parallel to each other?
- Coco12
- · Replies 11 ·