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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Capacitor Charge Calculation: C1 and C2 in Series
- i_island0
- · Replies 3 ·
Falling body in a non-inertial reference frame
- karnten07
- · Replies 5 ·
Hooks and pulleys (torque and force)
- Niles
- · Replies 18 ·
Understanding Spring-Coupled Masses: A Quick Guide
- *best&sweetest*
- · Replies 4 ·
Coeffiecient of friction question
- paneity
- · Replies 1 ·
Understanding Atom Structure and Radiation for Physics Students
- DEWANA
- · Replies 7 ·
Mechanics 1 Help: Solve Questions on Bead Equilibrium
- CathyLou
- · Replies 5 ·
Calculate Red Light Wavelength in Liquid | Angle of Refraction
- rhxoehwhfh
- · Replies 4 ·
How Can You Solve Challenging Mechanics Problems?
- magicuniverse
- · Replies 11 ·
Pendulum Damping Force Calculation
- geordieman101
- · Replies 3 ·
Finding Angle of Refraction with Given Angles
- rhxoehwhfh
- · Replies 2 ·
Which Medium Has a Lower Index of Refraction: C or D?
- rhxoehwhfh
- · Replies 4 ·
Calculating Light Travel Time in Glycerine: A Homework Guide
- rhxoehwhfh
- · Replies 6 ·
A question about Simple Harmoic Motion
- wowolala
- · Replies 2 ·
Equipartition theorem and chlorine
- PeterPoPS
- · Replies 1 ·
Deriving and Integrating Terminal Velocity Equation for Position
- Joza
- · Replies 1 ·
Projectile Motion With Drag [Aprox's are Welcome]
- Ikeness
- · Replies 2 ·
Help with Electricity Assignment: Vt, It, I1, I2
- jam7cacci
- · Replies 9 ·
Elastic Collision of a 90kg ball
- Lyphta
- · Replies 2 ·
How Does Sucking on a Straw Affect Pressure in a Child's Mouth?
- gills
- · Replies 1 ·
Can Photons and Electrons Cause Inelastic Collisions in Quantum Physics?
- tsochiu
- · Replies 11 ·
Calculating Angular Acceleration of a Washer's Tub
- smd1991
- · Replies 1 ·
Solving Physics Homework: Force of Friction & Work Done
- pebbles
- · Replies 1 ·
Calculating Work: 15.0N Object Moved 3.00m with a 60.0N Force
- blue__boy
- · Replies 2 ·
SPH 4U0 Questions: Homework Solutions
- Jimmy215
- · Replies 1 ·
Made a small mistake and can't figure out what to do->Projectile motion
- pebbles
- · Replies 2 ·
What is the Damping Coefficient in a Pendulum's Dampened Oscillation?
- GreenLantern674
- · Replies 1 ·
Hooke's Law: Two springs in series
- xxx7r1s7axxx
- · Replies 6 ·
Solve Physical Pendulum: Length, Mass, Period
- JolleJ
- · Replies 18 ·
What is the roller coaster's final speed at the bottom?
- irrrjntlp
- · Replies 2 ·
Find the Image of a Point Object at a Glass Sphere
- pardesi
- · Replies 4 ·
Fruit cell emf varying with temperature
- D_o_S
- · Replies 1 ·
Solved: Value of Infinity for Hydrogen Atom Wavelength
- alexlee33
- · Replies 4 ·
How Do You Calculate the Moment of Inertia for a Tennis Racket?
- metalInferno
- · Replies 7 ·
Direction of Friction Problem HELP
- metalInferno
- · Replies 5 ·
Gravitational potential energy of ball
- pebbles
- · Replies 25 ·
Solve Momentum Problem: Mass of Gas for Course Correction of 30 Degrees
- pebbles
- · Replies 5 ·
Meteors will strike earth at what speed?
- gills
- · Replies 2 ·
Electric Flux Calculation for Uniform Field in Closed Shoe Box - [SOLVED]
- Kajayacht
- · Replies 2 ·
Finding Basis of 5x5 Matrix: A - A^T
- ND3G
- · Replies 1 ·
Angular velocity - different ans by conserv E and momentum
- catkin
- · Replies 10 ·
Kinetic and poetenial energy of a roller coaster loop
- Cate
- · Replies 3 ·
Calculating Velocity of a Crate on an Incline Using Spring Constant and Mass
- KAT444
- · Replies 9 ·
Finding the acceleration of an object problem
- DJW
- · Replies 11 ·
How Does Friction Affect the Motion of Three Blocks?
- complexc25
- · Replies 3 ·
Two charges, find collision point
- DaNiEl!
- · Replies 4 ·
Find the Net Torque on Pulley with Masses M1 and M2
- Gravitino
- · Replies 8 ·
Finding the Image Distance for a Mirrored Sphere
- pardesi
- · Replies 3 ·
Sun's gravitational pull problem
- jperk980
- · Replies 1 ·
Calculating Power of Melting Ice with Thermoelectric Heater/Cooler
- lastoftheligh
- · Replies 9 ·
What is the Change in Velocity of a Model Airplane in a Circular Motion?
- aham925925
- · Replies 25 ·
Ball of putty hits rod (rotation)
- jonnyboy
- · Replies 3 ·
Relativity Homework: Understanding Gamma Factor from Professor Shankar's Notes
- Tedjn
- · Replies 7 ·
Understanding Spring Constant: 8.0kg Stone Compression
- JFlash
- · Replies 1 ·
Is this the answer to this question?
- predentalgirl1
- · Replies 1 ·
Formula given acceleration and distance
- Pure_Anarchy
- · Replies 3 ·
How Do You Calculate Projectile Altitude on the Moon?
- MellowOne
- · Replies 12 ·
Finding Velocity for Work and Energy Problem
- petern
- · Replies 4 ·
Law of sine/cosines to find resultant force
- Saladsamurai
- · Replies 6 ·
How to Calculate Tension in a Hanging Sign Supported by Two Ropes
- physicsma1391
- · Replies 6 ·
Tension in a rope on frictionless pulley
- simon360
- · Replies 32 ·
Determine the radius of the electron's orbit.
- Frogger Man
- · Replies 13 ·
Can Water Be Sucked from a Vacuum?
- SciencePF
- · Replies 9 ·
How can I find the resultant force using only the law of cosines and sines?
- Saladsamurai
- · Replies 9 ·
Calculating Proton Speed in 0.1T Magnetic Field
- jbuck886
- · Replies 3 ·
Banked road need to find the angle
- LDRshipphysic
- · Replies 3 ·
Need help finishing Physics Problem, almost have answer.?
- Frogger Man
- · Replies 9 ·
A question about Newton's Law of Universal Gravitation
- Spongemonkies
- · Replies 4 ·
Gravity Work & Power of a Lawn Mower & Motion of a Cart
- kingsrock783
- · Replies 1 ·
Is This Destructive Interference and Ambulance Speed Calculation Correct?
- tornzaer
- · Replies 7 ·
What Is the Current Distribution in a Parallel Circuit with Three Loads?
- swathi
- · Replies 1 ·
Forces on a Box in a Moving Truck
- wyclefchick
- · Replies 3 ·
How can radiation be stopped by different materials?
- sciencefreak
- · Replies 3 ·
Understanding Undamped Oscillations
- jonnyboy
- · Replies 2 ·
Calculating Entropy Change of a Wire Conduction
- pizzafihop
- · Replies 3 ·
Work done by kinetic frictional force
- Jacque77
- · Replies 5 ·
Faster or Slower: Doubled Mass & Wall Slide
- pyroknife
- · Replies 3 ·
Need help - body in central force-field
- chem_master
- · Replies 25 ·
Angular momentum and oscillation of disk
- jonnyboy
- · Replies 1 ·
Derivation of Simple Harmonic Motion for a Spherical Bowl
- merryjman
- · Replies 2 ·
Max Tension for Bridge Cable: Calculating Safe Distance from Wall
- Joza
- · Replies 6 ·
Calculating Charge on a Capacitor in an RC Circuit
- Ryo124
- · Replies 5 ·
At what time will the policeman catch up with the car?
- faunmia
- · Replies 3 ·
Find Min Force to Keep 50kg Block in Place
- rainingurl
- · Replies 1 ·
Find Tension in Lamp Hanging Vertically w/ 3 Wires
- perfectchaos180
- · Replies 4 ·
How to Solve an Inclined Plane Problem: Finding Mass with Acceleration and Angle
- Grimly
- · Replies 11 ·
Static equilibrium and tension problem
- Vanessa23
- · Replies 7 ·
Determine Acceleration from Position vs. Time Graph
- petern
- · Replies 4 ·
Acceleration Problem due to Rotational Inertia [Exam in 9hrs]
- maxxed
- · Replies 2 ·
How Does Electron Momentum Change Across Hydrogen Atom Energy Levels?
- khorsani
- · Replies 1 ·
Angular tension on a hanging body
- MrJingles
- · Replies 3 ·
Projectile Motion Softball Question
- xxnicky
- · Replies 4 ·
How well can you know the momentum of the electron?
- khorsani
- · Replies 2 ·
How Do You Calculate the Acceleration of a Crate with Kinetic Friction?
- physicsma1391
- · Replies 3 ·
Excel spreedsheet for Range formula- Lab
- brncsfns5621
- · Replies 6 ·
Solve the coefficient of friction in a problem involving circular motion
- adca14
- · Replies 2 ·
What is your friends speed relative to you?
- dashkin111
- · Replies 1 ·
How Deep Does a Barge Sink with 3000 Tonnes of Coal?
- j_suder2
- · Replies 4 ·
Are These Physics True or False Answers Correct?
- Jimmy215
- · Replies 1 ·