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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Coin in water pool, how does coin appear? Optics
- frozen7
- · Replies 8 ·
Calculate Theoretical Period of Rotation for Physics Lab
- yosup231
- · Replies 13 ·
Find a 2D Scattered Field Application - Levi
- levi
- · Replies 3 ·
Building a sensor and making measurements
- alex_boothby
- · Replies 3 ·
Projectile motion particle problem
- vaishakh
- · Replies 14 ·
Inertia of a Bowling Pin: Can We Predict Its Complex Motion After Impact?
- ddoucet
- · Replies 10 ·
Solving Work, Energy & Friction for Block Movement & Spring Compression
- joex444
- · Replies 5 ·
Simple variable control question.
- metalmagik
- · Replies 2 ·
Solve High School Physics Midterm Problem Involving Pulley & Masses
- Whitebread
- · Replies 5 ·
Solving Rotational Problem: Find Min Distance & Accels
- Eumcoz
- · Replies 2 ·
Particle slides into a rod and pivots
- joex444
- · Replies 5 ·
.Learning Fluid Dynamics on my Own
- ziad1985
- · Replies 1 ·
Why Is the Total Angular Momentum of a Particle System Constant?
- ElDavidas
- · Replies 1 ·
2 blocks sliding down a incline connected by string (check please)
- Seiya
- · Replies 3 ·
Solving the Convergence of Points A and B
- vaishakh
- · Replies 2 ·
Energy created by falling object
- Greg E
- · Replies 1 ·
System of 4 Pendulums: Why Don't They Move Faster?
- teken894
- · Replies 1 ·
Solving 2D Wave Interference - Find Wavelength & Speed
- F.B
- · Replies 1 ·
When Does a Skier Lose Contact with a Snowball?
- courtrigrad
- · Replies 2 ·
How Do You Calculate the Coefficient of Kinetic Friction in a Pulley System?
- psycovic23
- · Replies 1 ·
Help with a question form 1984 physics B AP exam
- Petrikovski
- · Replies 1 ·
Solve Heat Balance Problem: 50g, 30 Deg, 530 Sec, 10W, 100g, 16.1W
- polyperson
- · Replies 5 ·
How Do Electrical Equations Help Calculate Charge and Electron Flow in Circuits?
- runicle
- · Replies 1 ·
How do forces on a hippo change on a steeper hill?
- yosup231
- · Replies 3 ·
Calculate Eccentricity and Period of Central Force III Planet's Orbit
- Nusc
- · Replies 8 ·
What is the ratio between the depths they will sink into the ice?
- s_avraanips
- · Replies 2 ·
Understanding Adiabatic Expansion in Thermodynamics
- vaishakh
- · Replies 3 ·
What is the frequency of the photon?
- helpm3pl3ase
- · Replies 17 ·
Finding electric field intensity of two spheres
- an_mui
- · Replies 8 ·
Electric Potential related question
- kfan321
- · Replies 8 ·
Central Force II: Find F(r) & Closest, Furthest Distances
- Nusc
- · Replies 7 ·
How Do Protons Hit a Target Under Electric Field Influence?
- an_mui
- · Replies 3 ·
Explaining the Formula E=hf for Planck's Constant
- nvidia17
- · Replies 3 ·
Call me crazy but, I think there might a speed faster than C
- suckstobeyou
- · Replies 12 ·
Measuring Mass, Volume, and Density: How to Obtain Accurate Measurements
- noorey711
- · Replies 2 ·
Easy shameful force and speed question
- scryedzxp
- · Replies 3 ·
F frequency of small diameter organ pipe
- msimard8
- · Replies 5 ·
Help with relativity and time dilation
- jaterp
- · Replies 1 ·
Kinematics Equation: Finding Velocity with Mass, Potential Energy, and Gravity
- DonovanX
- · Replies 1 ·
Calculate Launch Velocity: Spring Force with 80kg Mass and 2kg Object
- avb203796
- · Replies 14 ·
Differential equation that governs the motion of the particle?
- Nusc
- · Replies 4 ·
Momentum and KE in multiple collisions at the same instant
- onizuka
- · Replies 2 ·
Forces and wrecking ball Question
- yosup231
- · Replies 8 ·
Quantum Physics energy between states
- frozen7
- · Replies 1 ·
What is the Angular Speed of a Car Wheel?
- chowyo123
- · Replies 3 ·
Why Is Moving Charge Between Different Voltages Important in Physics?
- Snake
- · Replies 9 ·
ANother force problem (Please offer any help you can)
- avb203796
- · Replies 6 ·
Find the net torque about an axis through O
- jesuslovesu
- · Replies 6 ·
How Can I Determine the Stopping Time of a Mass on a Spring?
- chandran
- · Replies 2 ·
Madeburg’s Hemispheres from 1657 Revisited
- Roger900
- · Replies 3 ·
Calculating Gravitational Potential Energy for a Sliding Box: Expert Tips
- avb203796
- · Replies 12 ·
Finding the Distance b/w Particles in Gravitational Field
- vaishakh
- · Replies 2 ·
Stable Equilibria: Is x = pie a Solution?
- Nusc
- · Replies 15 ·
Calculating Work and Velocity: Force/Work Problem Explained
- avb203796
- · Replies 2 ·
Solving Farmer Lever Problem | Min Force Needed
- donjt81
- · Replies 2 ·
Question from my Kinematics Exam.
- x2468
- · Replies 2 ·
Projectile Speed Comparison: Explaining with No Equations
- amcavoy
- · Replies 3 ·
Particle in Circular Motion: Newton's 2nd Law & Orbital Periods
- Nusc
- · Replies 6 ·
One-dimensional undamped harmonic oscillation
- Nusc
- · Replies 2 ·
Physics Audio Tapes: Learning, Lectures & More for Your Drive
- kuahji
- · Replies 3 ·
How Does Physics Explain the Stability and Movement in Jenga?
- rayden54
- · Replies 11 ·
What is the formula for calculating friction and normal force in physics?
- DaFuZzMaStA
- · Replies 24 ·
What is the minimum force needed to make a brick topple in a moving train?
- Omar.Castillo
- · Replies 3 ·
Cofused with this Momentum problem
- teken894
- · Replies 3 ·
Help Needed: Calculating Slit Distance Using Interfringe Value
- Cyannaca
- · Replies 3 ·
Torque Calculation for Jacked-Up Car Changing Tires
- hshphyss
- · Replies 2 ·
Struggling with Torque Problems?
- hshphyss
- · Replies 2 ·
How Do You Solve for X(t) in an Underdamped Oscillator Problem?
- don_anon25
- · Replies 1 ·
Solving for Wavelength of a Harmonic Wave
- physics_ash82
- · Replies 4 ·
Solving a Spring-Mass System Energy Problem
- Dooga Blackrazor
- · Replies 1 ·
Centripetal force equation help
- cheez
- · Replies 7 ·
Vector Resolution and Force Balancing on a Force Table
- avb203796
- · Replies 4 ·
What is the displacement of the car from the point of origin?
- thschica
- · Replies 2 ·
Calculate the work done by a force
- don_anon25
- · Replies 7 ·
How Can Reducing Pallet Weight Increase Coca-Cola's Operational Efficiency?
- 9000_red
- · Replies 7 ·
Angular Velocity of Thin Wheel/Axle System
- asdf60
- · Replies 10 ·
Frictional Forces: Paper & Object on Top
- grief
- · Replies 3 ·
How Is Work Calculated in a Piston-Cylinder Device with a Linear Spring?
- bruceflea
- · Replies 4 ·
How high will the hand glider pilot rise with this energy conservation problem?
- cheez
- · Replies 9 ·
Where Should the Pivot Point Be Placed to Balance a Seesaw?
- answerseeker
- · Replies 1 ·
How Do You Build a Crumple Zone for an Egg Drop with Toothpicks?
- Frank_Horrigan
- · Replies 5 ·
Mirror Height for Self-Reflection at Distance D for H
- Edgar White
- · Replies 1 ·
Inertia, Friction & Velocity in Golf
- SpaceChic21
- · Replies 7 ·
How Does Phase Change Affect Destructive Interference in Radio Waves?
- Arctangent
- · Replies 4 ·
How Do You Calculate Stopping Distances and Projectile Motion?
- thschica
- · Replies 2 ·
How Do You Calculate Thermal Equilibrium and Ice Formation Times?
- Goalcard
- · Replies 8 ·
Calculating Vector Components: X & Y
- seang
- · Replies 4 ·
Object being pushed up an inclined plane
- Bushman
- · Replies 4 ·
Solve Centrifuge Problem with Calculus & Angular Velocity
- Omar.Castillo
- · Replies 1 ·
Solve Optics Problem w/ Hi/Ho Formula & Understand Measurements
- unctarheels1
- · Replies 3 ·
Calculating the Minimum Height for a Safe Amusement Park Ride: A Physics Problem
- courtrigrad
- · Replies 3 ·
Fallacy in Work-Energy theorem?
- rushil
- · Replies 6 ·
What was the weight of the person?
- beaniegoober
- · Replies 3 ·
Are explosions soley the result of expanding gas?
- VonWeber
- · Replies 5 ·
Can Electrons Jump Between Energy Levels if the Energy is Not Precisely Matched?
- rushil
- · Replies 2 ·
What type of problem is this? Physics 1 practice final.
- chloeishere
- · Replies 3 ·
Electric fields and parallel plates
- F.B
- · Replies 1 ·
Solving a Two-Box Frictionless Physics Problem
- Alw
- · Replies 2 ·
What are the overtones of a clarinet?
- gapgirl1010
- · Replies 3 ·