Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
How Does Introducing Different Dielectrics Affect Capacitance?
- vijayramakrishnan
- · Replies 4 ·
Gravitational Potential Energy of a Sphere
- reminiscent
- · Replies 3 ·
Thin rod w/linear charge density, dipole moment
- Slightly Odd Guy
- · Replies 4 ·
How do I calculate the work due to air drag when throwing a ball in the air?
- Eater
- · Replies 2 ·
Does a Drop in Energy Level Indicate Water Flow Direction?
- foo9008
- · Replies 1 ·
Weight difference at Mt. Everest summit vs. sea level
- pauladancer
- · Replies 2 ·
Electromagnetic induction in a U shaped conductor
- FaroukYasser
- · Replies 2 ·
Calculating Magnetic Field at a Point Near a Long Wire
- Robb
- · Replies 2 ·
Solving for Kinetic & Potential Energy: Help Needed
- Robb
- · Replies 2 ·
5 Questions dealing with Optics, image included
- Pharrett
- · Replies 1 ·
Is this a simple energy conservation problem?
- Vibhor
- · Replies 45 ·
How Is Polarized Light Propagation Determined from Electric and Magnetic Fields?
- NZBRU
- · Replies 6 ·
Image of an Object Inside Hollow Glass Sphere
- Kaan99
- · Replies 1 ·
What is the Newtion Ring Experiment?
- kenok1216
- · Replies 3 ·
A conducting shell kept in a uniform electric field
- Titan97
- · Replies 57 ·
Combined Spring Forces in Preloaded System with Moving Mass
- hammadmunawar
- · Replies 17 ·
Question about Biot-Savart Law (B-field)
- kenok1216
- · Replies 21 ·
Finding pressure, mean speed and mean free path
- slim2636
- · Replies 1 ·
Potential difference between two points on a circuit
- terryds
- · Replies 7 ·
Meeting the criteria for a graph
- Stendhal
- · Replies 2 ·
Solving a Uniform Beam Inclined at an Angle
- doneky
- · Replies 1 ·
Inelastic and elastic collision (please explain)
- PoohBah716
- · Replies 1 ·
Static equilibrium, tension and compression
- Dietrichw
- · Replies 2 ·
Find my Mistake? (Moment of inertia)
- Z90E532
- · Replies 9 ·
Angular resolution of microscope
- kenok1216
- · Replies 2 ·
Current induced in a solenoid by a constantly changing B
- cbrennan545
- · Replies 1 ·
Linear and Angular Momentum on a wooden gate
- Tissue
- · Replies 17 ·
Rearranging an SUVAT Equation: Solving for Time
- Physics55555
- · Replies 4 ·
Calculating the work done in an electric field
- Biker
- · Replies 1 ·
About charge inside a spherical metallic shell
- kenok1216
- · Replies 10 ·
Electromagnetism and the motor principle
- alexandria
- · Replies 2 ·
Modern applications of electromagnetism -- Regenerative Braking
- alexandria
- · Replies 3 ·
The motor principle and direction of force on conductor
- alexandria
- · Replies 3 ·
Identifying the 'Tight Side' of a V-Belt on Pulley C
- minoroctave
- · Replies 1 ·
What Causes Charged Particles to Spiral in a Magnetic Field?
- Harrison G
- · Replies 2 ·
Archived Question about Weak Nuclear Force
- Simfish
- · Replies 1 ·
End correction of a closed pipe
- Zoro
- · Replies 6 ·
Will the car make it to the top of the hill?
- Dillion
- · Replies 5 ·
Understanding Electromagnetic Induction and Toppling of a Conducting Ring
- erisedk
- · Replies 6 ·
Calculating Work on a Charged Particle in an Electric Field
- Dillion
- · Replies 1 ·
Compton effect: Scattering angle of electron
- vetgirl1990
- · Replies 1 ·
What Is the Spring Constant in This Simple Harmonic Motion Problem?
- Stendhal
- · Replies 2 ·
Effects of Reversing Magnet Motion on Induced Current and Magnetic Field
- alexandria
- · Replies 7 ·
Electric Field along bisector of charged line (w/error)
- Slightly Odd Guy
- · Replies 11 ·
Thevenin equivalent resistance problem
- glover261
- · Replies 15 ·
Train Whistle Echo: Calculating Distance & Temperature Effects
- Xoloti
- · Replies 4 ·
Temperature change of Water after dropping a ball into it
- unified
- · Replies 10 ·
Periodic Time Calculation for Simple Harmonic Motion with a Spring
- Ch3m_
- · Replies 1 ·
Block slides down and sticks to pivoting rod, find rotation angle
- i_hate_math
- · Replies 46 ·
Finding Tower 2 Height to Achieve 3x Velocity
- Frankenstein19
- · Replies 4 ·
Finding centripedal acceleration with tangential acceleration
- tobtob
- · Replies 2 ·
Electric generator and how it functions
- alexandria
- · Replies 7 ·
What Is the Minimum Potential Needed to Emit X-Ray Photons of 10^-10 Meters?
- DarkMatter5
- · Replies 4 ·
Velocity after force applied for 0.01 s
- Anjum S Khan
- · Replies 7 ·
Why Does T^2 Not Directly Correspond to L in Compound Pendulums?
- Mike Shandon
- · Replies 2 ·
Solving Eclipsing Binary Homework
- shadowpipi
- · Replies 1 ·
Thermodynamics Conceptual Question
- fridakahlo
- · Replies 2 ·
Constant Acceleration Ratio to Constant Velocity
- Bill48
- · Replies 12 ·
Calculating a Homopolar Generator's EMF
- ElPimiento
- · Replies 3 ·
A question about Rectilinear motion
- Priyadarshi Raj
- · Replies 4 ·
Mass attached to a rope. the rope encounters a nail.
- Karol
- · Replies 2 ·
What Are the Natural Frequencies of a Double Pendulum Using Torque Methods?
- axe34
- · Replies 1 ·
On Polarised Light and its State
- JohnGaltis
- · Replies 6 ·
Can anybody help me to find acceleration
- rashida564
- · Replies 12 ·
Angular Velocity and Acceleration graph
- df102015
- · Replies 4 ·
Lagrangian mechanics, simple pendulum
- YauYauYau
- · Replies 5 ·
What is the Magnetic Force on the Loop in this Rigid Contour System?
- Ivan Antunovic
- · Replies 5 ·
Elevator and acceleration problem
- pauladancer
- · Replies 7 ·
Collision involving angular and linear motion
- GwtBc
- · Replies 5 ·
Question about the superposition of energy states
- icesalmon
- · Replies 11 ·
Magnitute and Direction of Electric Field Based on Particle
- Slightly Odd Guy
- · Replies 3 ·
Balloon and Ballast: Find Max Height of Dropped Ballast
- carlitos_30
- · Replies 6 ·
Acceleration of a Particle Due to Magnetic Field
- Hamzaa5623
- · Replies 1 ·
What Rate of Magnetic Field Change Induces a 10 A Current in a Circular Loop?
- PhysicsInNJ
- · Replies 2 ·
Electric DC motor, commutator, carbon brushes, and magnets
- alexandria
- · Replies 7 ·
Is my solution correct? (Electromagnetism problem)
- loki4000
- · Replies 5 ·
The magnetic field induced by a current loop
- Engineering Student
- · Replies 3 ·
Thermodynamics and waves problems
- kelvin56484984
- · Replies 2 ·
How to find equivalent resistance of this circuit?
- nfcfox
- · Replies 19 ·
Curve fitting for Gravity/Conservation of Energy Lab
- Dietrichw
- · Replies 4 ·
How Do You Calculate Charge and Distance from Electric Potential and Field?
- nfcfox
- · Replies 3 ·
How to calculate head loss in a pipe with sudden diameter expansion?
- foo9008
- · Replies 33 ·
Water and Ice mixture, Find original temperature of water
- Moon_tm
- · Replies 4 ·
Covering half of lens with an opaque coating
- Titan97
- · Replies 14 ·
Sled Dogs and Components of Force
- AK Husky
- · Replies 6 ·
Solve Lagrange's Mechanics Homework on Projectiles in Gravity
- YauYauYau
- · Replies 2 ·
Moment of inertia rigid body problem
- i_hate_math
- · Replies 38 ·
Finding angular acceleration when a bike wheel slows to stop
- df102015
- · Replies 3 ·
Calculating the Angle of a Pendulum Swing into a Peg
- StrangerDanger
- · Replies 3 ·
400kJ of work is exerted to reduce a car's velocity
- WannabeEngineer
- · Replies 1 ·
How Does Friction Impact Post-Collision Speed in Inelastic Car Accidents?
- ramr0d
- · Replies 4 ·
Question on Sliding/rolling spherical ball
- i_hate_math
- · Replies 1 ·
Reynold's Number: Understanding Laminar Flow in Smooth Pipes
- foo9008
- · Replies 1 ·
Thermal Conductivity and Lasers
- says
- · Replies 1 ·
Question on Moment of Inertia/Rotational Inertia
- i_hate_math
- · Replies 4 ·
Smooth rolling motion - conservation of energy?
- stfz
- · Replies 3 ·
Analyzing Angular Acceleration and Particle Motion in Rotating Spheres
- Jamest39
- · Replies 15 ·
Help with textbook question -- Where did the factor of 2 come from?
- Julia Coggins
- · Replies 4 ·
Uncharged capacitor connected to a charged capacitor
- Titan97
- · Replies 7 ·
Motion after force applied is removed
- Anjum S Khan
- · Replies 3 ·