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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Calculating the Total Resistance of a Composite Wire
- ninanoorable
- · Replies 4 ·
Magnetic field direction in Helmholtz coils
- MitsuShai
- · Replies 1 ·
What is the relationship between the width of an open organ pipe and its pitch?
- zorro
- · Replies 9 ·
How does tension work in pulley systems with friction?
- Xin R
- · Replies 14 ·
Relation between moment of inertia and acceleration
- MinaHany
- · Replies 7 ·
Gauss' Law and charges placed within a spherical conductor
- accidentprone
- · Replies 4 ·
Question on capacitors in parallel
- binbagsss
- · Replies 3 ·
Mass needed to rotate wheel and axle (rotational motion)
- MinaHany
- · Replies 2 ·
What Is the Refractive Index of the Glass Slab?
- sachin123
- · Replies 1 ·
X-ray production, continous and line spectra.
- binbagsss
- · Replies 2 ·
How Does the Continuity Equation Apply to Changing Water Flow in Pipes?
- dinhjeffrey
- · Replies 1 ·
What is the work done by a radial force in this situation?
- dinhjeffrey
- · Replies 3 ·
Why is the buoyant force 250 N and not 200 N?
- dinhjeffrey
- · Replies 1 ·
How do you calculate pressure using force and area?
- dinhjeffrey
- · Replies 2 ·
Physics Project: The Famous Foil Boat
- Yoomin
- · Replies 3 ·
Calculating Gravitational Acceleration at a Planet's Surface
- dinhjeffrey
- · Replies 1 ·
Interference Pattern: Find # Bright Fringes w/483nm Light
- tomrja
- · Replies 1 ·
According to the measurement postulate
- blueyellow
- · Replies 1 ·
How to calculate power loss due to eddy currents
- Orlando
- · Replies 1 ·
Atoms decay via alpha emission have a half-life of 150 min
- IKonquer
- · Replies 3 ·
Find Dielectric Constant Given Charges
- Runaway
- · Replies 4 ·
How Far Are the Closest Four Images of the Candle in the Mirrored Room?
- meiler01
- · Replies 1 ·
Simple circuit analysis using KVL
- PainterGuy
- · Replies 6 ·
Acceleration of a sliding mass with a sliding mass on top of it?
- Blkmage
- · Replies 1 ·
Magnetic Field Produced by Power Line
- GarthVader
- · Replies 3 ·
Calculating KE in rotational motion
- MinaHany
- · Replies 3 ·
Weight of a block in equilibrium in a system.
- IAmPat
- · Replies 3 ·
Finding moles of air entering a cylinder with a leaking cap
- awertag
- · Replies 1 ·
BOLTZMAN'S cONSTANT and Thermal laws.
- notsam
- · Replies 1 ·
Work needed to stop a rolling hoop
- IAmPat
- · Replies 2 ·
Finding the Solution for x in a Fractional Equation
- Amaz1ng
- · Replies 7 ·
Electric potential inside an insulator vs conductor
- flyingpig
- · Replies 2 ·
Amplitude of a Pendulum: Finding the Swing Range
- jelzap
- · Replies 1 ·
Doppler shift and number of signals in relativistic travel
- Delzac
- · Replies 5 ·
Find Stable Equilibrium for Mass m=5.34Kg w/ Force F(x)
- jjj2364
- · Replies 3 ·
Understanding Monochromatic Energy Density: A Temperature-Dependent Analysis
- zorro
- · Replies 2 ·
Double Slit Experiment With White Light
- richardstan
- · Replies 4 ·
Electrical motor: calculating input power, energy and efficiency
- Femme_physics
- · Replies 9 ·
Can someone explain how they got this?
- gvcalamike
- · Replies 1 ·
Proving Lagrangian L is Not Uniquely Defined
- Grand
- · Replies 6 ·
Moment of inertia of a spinning disc pendulum
- unscientific
- · Replies 5 ·
Simple Harmonic Motion - Velocity EQ.
- Masri
- · Replies 13 ·
How does a cathode ray eject inner orbital electrons?
- joebobjoe
- · Replies 1 ·
Torque, have answer, need explanation
- gvcalamike
- · Replies 2 ·
Finding magnitude and direction of resultant force from multiple forces
- BaLTHEBEAST
- · Replies 1 ·
How Does Charge Distribution Affect Gaussian Surface Flux?
- tomrja
- · Replies 2 ·
Radius of Gyration and moment of inertia
- SteelDirigibl
- · Replies 6 ·
Help with exam practice question about friction
- versaknight
- · Replies 9 ·
Calculating Pressure Difference in an Equilibrium Hydrostatics System
- Lavabug
- · Replies 2 ·
Acceleration and Velocity Relationships
- ahmdo
- · Replies 10 ·
Calculating Refraction Time in Water: Physics Homework Help
- eestep
- · Replies 1 ·
First Law of Thermodynamics - easy q's
- dtavob
- · Replies 3 ·
Magnetic field along z axis from two parallel wires 6cm apart
- watsonds1
- · Replies 1 ·
Net moment about pivot in Morin's classical mechanics problem
- bksree
- · Replies 3 ·
How To Calculate Catapult Trajectory
- tesla93
- · Replies 7 ·
What Experiments Can Demonstrate Gamma Rays in the Classroom?
- logaliciouz
- · Replies 4 ·
How Much Work Is Done in Adiabatic Compression of Gas?
- v_pino
- · Replies 3 ·
Calculating Poynting Vector in Long Resistive Rod
- bon
- · Replies 1 ·
How Does Exciting a Hydrogen Atom Affect Its Kinetic and Potential Energy?
- sphyics
- · Replies 1 ·
Crankshaft-like device with rotating moment of 150 N·m
- Femme_physics
- · Replies 11 ·
Moment of inertia of a hollow sphere proof
- Ja4Coltrane
- · Replies 14 ·
Particle Accelerator Problem, proton -> electron positron
- btbam91
- · Replies 1 ·
How to Prove |\DeltaE/E| = |\Delta\lambda/\lambda|<<1?
- ProPatto16
- · Replies 21 ·
Understanding Peel-Out From a Torque/Rotational Dynamics Perspective
- RobL14
- · Replies 7 ·
Find resulting temperature, heat quantity problem
- aelarz
- · Replies 2 ·
Conservation of momentum and velocity question
- affordable
- · Replies 1 ·
Finding radial force from inverse separation potential energy
- Prip_792
- · Replies 1 ·
Angle Between Two Forces: Understanding Vector Addition and Magnitude
- asmalik12
- · Replies 4 ·
How Do Smoke Rings Move Differently Based on Their Size?
- AttilaTheNun
- · Replies 11 ·
How Can You Find the Energy Densities of an Electromagnetic Wave?
- bon
- · Replies 8 ·
How Is Kinetic Energy Calculated in the Photoelectric Effect?
- whoopie88
- · Replies 2 ·
Particle Focusing in a Uniform Magnetic Field
- bon
- · Replies 7 ·
What Temperature Equals Hydrogen's RMS Velocity to Oxygen's at 300K?
- mit_hacker
- · Replies 3 ·
Where did I go wrong on this double-slit experiment problem?
- I Am Robot
- · Replies 1 ·
How Does a Battery Charge a Capacitor in a Direct Current Circuit?
- logearav
- · Replies 2 ·
Solving for Horizontal Distance of an Arrow Shot Over Level Ground
- Eggphys
- · Replies 14 ·
How Do You Calculate Torque in a Pulley System?
- RU2490
- · Replies 4 ·
What Determines the Speed of a Spacecraft in Special Relativity?
- Delzac
- · Replies 4 ·
Why Does a Voltmeter Show Zero in a Rotating Magnetic Field?
- quietrain
- · Replies 10 ·
Particle in a box wave function
- ProPatto16
- · Replies 26 ·
What is the Linear Impulse of a Potato with Changing Speed?
- lokobreed
- · Replies 6 ·
Proton deflection in electric field between parallel plates
- iiguitar
- · Replies 2 ·
Force, Torque and Angular Acceleration Problem
- cdbowman42
- · Replies 8 ·
Difficult Coulombs Law questions
- Basher
- · Replies 6 ·
Spring sysytem: finding A and Vmax
- satutino
- · Replies 3 ·
Deriving Length Contraction From Lorentz Transform
- Delzac
- · Replies 3 ·
Magnetic Flux through a wire loop
- Delzac
- · Replies 10 ·
Single-slit diffraction equations
- AznBoi
- · Replies 9 ·
Angular Momentum/Impulse Problem
- cdbowman42
- · Replies 4 ·
Where to buy a double-slit for Young's experiment
- Kaldanis
- · Replies 4 ·
What are the Expectations for Momentum and Energy in Quantum Mechanics?
- Grand
- · Replies 1 ·
Boy Seated On Mound of Ice, Starts Sliding
- yrsnkd
- · Replies 4 ·
How Does Slit Separation Impact Interference Patterns in Physics?
- taliaroma
- · Replies 1 ·
Can a capacitor's voltage equal the power supply voltage?
- flyingpig
- · Replies 1 ·
Finding the Root Mean Square Speed of Methane at 50°C
- omni
- · Replies 10 ·
Which wave function propagates at constant speed without profile change
- EmmaK
- · Replies 12 ·
What Is the Wavelength of a Laser Used in CD Data Retrieval?
- jsmith613
- · Replies 1 ·
What is the speed of the dart as it leaves the toy?
- jbjohnybaker
- · Replies 2 ·
Calculate the amount of heat power that is generated by the isothermal process
- accidentprone
- · Replies 3 ·
Path followed by a space station.
- zorro
- · Replies 5 ·