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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Finding Electric Field on rod or ring?
- Brad_1234
- · Replies 1 ·
Calculate Max Acceleration Mass-Spring System: Vibration/SHM Help
- hshphyss
- · Replies 1 ·
Understanding the Behavior of Electrons in Neutron Stars
- PhilipF
- · Replies 1 ·
Solving for Maximum Kinetic Energy of a Particle in Motion | F=F0*e-kx
- brad sue
- · Replies 3 ·
Mass of Steam Needed for 1kg of Ice to Yield 20°C Water
- heelp
- · Replies 3 ·
Maximizing Efficiency: Uncovering the Truth About Heat Engines
- cheez
- · Replies 3 ·
Angular speed and rotation problem
- suspenc3
- · Replies 4 ·
Calculate the ideal (Carnot) efficiency of a heat engine
- lilkrazyrae
- · Replies 6 ·
Solving a Force Problem on Ski Incline | 65
- avb203796
- · Replies 3 ·
Calculating Spring Constant with Hook Weight Included
- burnside
- · Replies 2 ·
Specific heat; calormetry (no clue)
- heelp
- · Replies 1 ·
How Does the Weight of a 1500kg Animal Affect Earth and a Moon-Like Planet?
- avb203796
- · Replies 5 ·
How Does a Rocket's Trajectory Change Near a Star?
- skizm240
- · Replies 1 ·
Help with what is probably an easy question please. Pressure Problem
- cdm1a23
- · Replies 3 ·
Polarized Free Electrons vs Polarity of Static Magnet
- Buckeye
- · Replies 2 ·
Wave properiies of supersonic jets
- gapgirl1010
- · Replies 4 ·
Maximum weight that helium balloon can lift
- Raiden9
- · Replies 1 ·
Football Throwing Problem: Solving for Horizontal Catch Distance
- ckymike
- · Replies 3 ·
How does gravity cause movement in a balance?
- eosphorus
- · Replies 14 ·
Energy conservation and e = mc^2
- iommi0028
- · Replies 3 ·
Trouble Solving a Ladder Problem: Need Help!
- naeblis
- · Replies 1 ·
Still stuck in momentum vs energy on a tetherball
- eosphorus
- · Replies 8 ·
How does power relate to intensity?
- beanryu
- · Replies 4 ·
Final Angular Speed: 0.5m, 0.25kg, 23rad/s, 0.33Nm
- wholf09
- · Replies 3 ·
Moment of inertia / torque question
- ptlffrty
- · Replies 9 ·
Simple force down an inclined plane question.
- wasteofo2
- · Replies 7 ·
Calculating Escape Velocity for Reaching Altitude of 800km
- naeblis
- · Replies 5 ·
The Power of Heat: 16x More Energy at 550°C
- lilkrazyrae
- · Replies 3 ·
Solving for Extension Needed to Reach Target Distance with a Spring
- SS2006
- · Replies 3 ·
Projectile Motion of Diver Problem
- stuart_5
- · Replies 5 ·
Solving Thermal Equilibrium Problem: Aluminum & Iron Rods
- JJMezzapesa
- · Replies 3 ·
Simplifying the Equation for Beginners
- LENIN
- · Replies 2 ·
Having trouble on two problems- magnetism/inductance
- Grandmas
- · Replies 1 ·
Find angular speed of a point on the earth
- suspenc3
- · Replies 1 ·
Forces on an Accelerating Object
- sweet877
- · Replies 10 ·
How Do You Add Angular Frequencies in Wave Simulations?
- Ginny Mac
- · Replies 1 ·
Pendulum problem - What is the magnitude of the torque?
- suspenc3
- · Replies 1 ·
Coefficient of Friction of brakes
- sweet877
- · Replies 12 ·
Finding Angular Acceleration for Easy Rotation Quest
- suspenc3
- · Replies 1 ·
How Does a Spring Affect Maximum Compression in a Totally Inelastic Collision?
- suspenc3
- · Replies 3 ·
Zero Electric potential and null electric field
- fmilano
- · Replies 1 ·
Center of Gravity: Finding 0.387m from 1kg Sphere?”
- Greenrose
- · Replies 5 ·
Calculating the work done by friction
- NutriGrainKiller
- · Replies 11 ·
Calculating Resultant Velocity of Colliding Particles - Homework Check
- elle
- · Replies 2 ·
Conservation of Energy and calculating potential energy?
- suspenc3
- · Replies 5 ·
Calculating Linear Velocity for Volleyball Spike: Any Help Appreciated!
- stuart_5
- · Replies 1 ·
What is the lift force exerted by the air on the rotors?
- thschica
- · Replies 3 ·
Centripetal force of a block on a string
- physics10
- · Replies 4 ·
What Force Lifts the Bicycle Wheel Off the Ground?
- physics10
- · Replies 4 ·
Static equilibrium diagram help
- naeblis
- · Replies 3 ·
Calculate Temperature for Closed Expansion Joint on Steel Bridge
- lilkrazyrae
- · Replies 5 ·
Temperature change boiling water
- lilkrazyrae
- · Replies 6 ·
How Do Two Friends Balance a 200kg Crate Up Stairs?
- Greenrose
- · Replies 1 ·
Solve Collision Lab: Mass 1 & 2 = 0.541 kg | Error %?
- F.B
- · Replies 3 ·
Friction Question an incline plane with two angles
- SS_KingTiger
- · Replies 1 ·
Calc 320g H2O Melting Ice @ 68°C
- lilkrazyrae
- · Replies 3 ·
How Far Must a Glider Travel to Achieve 14 Joules of Work with a 19N Weight?
- lando45
- · Replies 8 ·
Calculating Change in Internal Energy: Work and Heat in an Insulated System
- lilkrazyrae
- · Replies 6 ·
2 questions (weightlessness and SHM)
- KatieKangaroo
- · Replies 5 ·
Left Hand Rule for a Straight Conductor
- 29 clicks
- · Replies 1 ·
PHysics (Torque?) problem BAFFLING
- coey
- · Replies 2 ·
Optics - Beam illuminating coin under water
- frozen7
- · Replies 1 ·
Calculating Solar Radiation Intensity and Temperature: The Stephan-Boltzmann Law
- smallbadwolf
- · Replies 9 ·
Mechanical Energy: A to B, Forces -70J/+50J
- nrc_8706
- · Replies 6 ·
A Problem on Thermal Equilibrium
- smallbadwolf
- · Replies 3 ·
Solving an Electrostatic Force Problem
- eok20
- · Replies 4 ·
Solving Momentum & Kinetic Energy Conservation: Lab Analysis
- F.B
- · Replies 6 ·
Can an object with constant angular velocity experience net torque?
- hshphyss
- · Replies 1 ·
How Is Electric Field Amplitude Related to Power in Electromagnetic Waves?
- Tcat
- · Replies 1 ·
How Long Does It Take a Rolling Sphere to Reach the Edge of a Rotating Platform?
- dilberg
- · Replies 11 ·
Determine the angle of incidence
- lw11011
- · Replies 2 ·
Calculating Stretching of a Wire: 2.5m Long
- naeblis
- · Replies 3 ·
Calculating Angular Velocity with Moment of Inertia & Torque
- kingyof2thejring
- · Replies 5 ·
Does 6 kW Cooling Fan = 6 kW of Heat?
- TSN79
- · Replies 4 ·
Induced EMF ~ Faraday's Law/Lenz's Law
- Kali8972
- · Replies 4 ·
Motion of Magnet on Inclined Plane: Info & Force Calculation
- Jurij
- · Replies 2 ·
Help! Egg Launcher Project for High Schooler
- gogetagritz
- · Replies 3 ·
Calculating Total Force on a 1/2 Wavelength Section of a Wave-Rope System
- sari47
- · Replies 1 ·
Calculate Angle & Torque for Square Coil in Vertical Magnetic Field
- Pseudo Statistic
- · Replies 3 ·
Faraday's Induced Emf: Help & Solutions Needed
- Kali8972
- · Replies 2 ·
Center of Rotation w/ 4 Objects: Finding Tension
- SS2006
- · Replies 5 ·
How Does the De Broglie Wavelength Relate to Scattering Angles?
- QueenFisher
- · Replies 3 ·
Solve Golf's Ocean Dilemma: Projectile Motion Help for a 20 Degree Drive
- avb203796
- · Replies 5 ·
How Much Energy Is Needed to Convert Ice at -108°C to Water Vapor at 1108°C?
- zhen
- · Replies 4 ·
How to Calculate Intensity from Wavelength & Amplitude
- Nm
- · Replies 2 ·
Calculate Height of Building from Stone Dropping Velocity
- kingyof2thejring
- · Replies 6 ·
Special Relativity Andromeda galaxy Question
- IntellectIsStrength
- · Replies 30 ·
How much of this energy is stored in the magnetic field of the inductor?
- mr_coffee
- · Replies 2 ·
Calculating Average Force: Momentum Question
- Andy87055
- · Replies 4 ·
Calculating Scale Readings for Dropped Mass on a Spring
- Leomar
- · Replies 4 ·
Understand the Difficulty of Torque Situps: Expert Response
- hshphyss
- · Replies 2 ·
Calculate the number of revolutions the disc makes
- kingyof2thejring
- · Replies 4 ·
Electromagnetic Waves Problem -
- ashkash
- · Replies 2 ·
Centripetal vs centrifugal acceleration
- dnt
- · Replies 3 ·
Frequency of Pendulum on Moon: 1.18 Hz
- Punchlinegirl
- · Replies 2 ·
Equilibrium of a Rigid Body Under Coplanar Forces
- Jordan_
- · Replies 3 ·
Rotation Dynamics mastering physics 10.32
- wku_tops
- · Replies 1 ·
Calculating the Total Length of a Spring with Varying Masses
- Punchlinegirl
- · Replies 4 ·
Calculating Velocity with Relativistic Mass Equation
- kingyof2thejring
- · Replies 4 ·
Calculating Thermal Energy from a Head-On Collision
- crisicola
- · Replies 1 ·