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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Why Isn't the Child's Pulling Force Shown in the Free Body Diagram?
- jack1234
- · Replies 1 ·
Shotput problem involving projectile motion
- TopCat
- · Replies 4 ·
Normal force acting on an loop?
- slammer
- · Replies 1 ·
Thermodynamics: entropy and engines
- fatcat39
- · Replies 2 ·
Spring gun: acceleration, exit speed, and maximum height
- ~christina~
- · Replies 9 ·
Calculating Force Exerted by Gas on Container Walls
- sun
- · Replies 13 ·
Thermal Physics: Kinetic Energy of Neon Molecules
- sun
- · Replies 2 ·
Total Stopping Distance at 80mph: How do you calculate it?
- i.am.lost
- · Replies 2 ·
How Can Cylindrical and Spherical Coordinates Calculate Moment of Inertia?
- cotufa
- · Replies 18 ·
How Is Induced EMF Calculated in a Current Loop with Increasing Current?
- mattst88
- · Replies 4 ·
About perfectly inelastic collision
- jack1234
- · Replies 1 ·
Radius of synchronous satellite from a planet
- galuda
- · Replies 4 ·
How Many Balloons Can One Helium Tank Fill?
- sun
- · Replies 2 ·
Car Crash and Such: Investigation and Analysis
- ~christina~
- · Replies 33 ·
Finding acceleration of a pulley using forces?
- battosi58
- · Replies 1 ·
How to throw a super ball so it bounces between two points
- issisoccer10
- · Replies 2 ·
Sound intensity increase as a result of wave interference?
- gills
- · Replies 6 ·
Kinetic Energy of Object Question
- MetsFan09
- · Replies 4 ·
Angular momentum and Springs (2 ques)
- zaxor0
- · Replies 1 ·
Momentum problem (Car and object)
- Dorney
- · Replies 9 ·
Helium Balloon and Compton Generator
- Sculptured
- · Replies 1 ·
Calculating Spring Force Constant from a Dropped Ball
- _700
- · Replies 2 ·
Oblique impact of smooth spheres?
- haddow64
- · Replies 4 ·
How Do You Calculate Initial Acceleration in Newton's Laws Problems?
- Bensky
- · Replies 1 ·
How Do You Calculate Pressure and Force in Deep Sea Conditions?
- ceeforcynthia
- · Replies 11 ·
Bouyancy, Pressure, Spring Scale
- ceeforcynthia
- · Replies 4 ·
Why Does My Series Circuit Show a Voltage Discrepancy?
- Ry122
- · Replies 1 ·
Sound wave displacement amplitude and intensity from frequency and pressure
- JasonV
- · Replies 1 ·
Find the Phase of a horizontal spring
- Starcrafty
- · Replies 13 ·
Can a Bead on a Parabolic Wire Exhibit Simple Harmonic Motion?
- Mattofix
- · Replies 7 ·
Plane flying west with southward crosswind: what heading angle?
- MoreZitiPlease
- · Replies 5 ·
Magnitude of acceleration problem
- zjm7290
- · Replies 11 ·
Calculate Air Temperature for 4th of July Fireworks Using Speed of Sound Formula
- BuBbLeS01
- · Replies 6 ·
Vo = (310 Hz / 340 m/s + 0 m/s) * (340 m/s / 342 Hz)Vo = 0.907 m/s
- BuBbLeS01
- · Replies 5 ·
Calculating Intensity of Sunlight Reaching Jupiter
- Jtappan
- · Replies 8 ·
How to Calculate the Speed of an Approaching Vehicle Using Doppler Effect?
- BuBbLeS01
- · Replies 1 ·
How long to heat 250 mL of water with a 350W immersion heater?
- iheartpink
- · Replies 4 ·
Moment of inertia and angular momentum of helicopter rotor blades
- captainjack2000
- · Replies 6 ·
Collision between 0.5kg cube and 5kg ball on a table
- Phyzix
- · Replies 2 ·
Simple Harmonic Motion of an ideal spring
- Jtappan
- · Replies 1 ·
What Happens to a Punctured Pressurized Canister as It Sinks in the Ocean?
- biomajor009
- · Replies 1 ·
QUESTION:What is the bird's average acceleration along its flight path?
- Imperil
- · Replies 8 ·
Coefficient of kinetic friction for a sliding baseball player
- zjm7290
- · Replies 1 ·
Solving Two-Block Friction Problem - Force Calculation
- TexasCow
- · Replies 3 ·
Calculating Length of Pendulum with 12.0 N Weight and 1.2 s Swing
- Jtappan
- · Replies 1 ·
Basic Mechanics - Projectiles Q's having problems
- hmax
- · Replies 1 ·
Huygens described light as a wave
- pinkyjoshi65
- · Replies 8 ·
Relative velocity and force vector problems
- goodie2shoes
- · Replies 1 ·
Questions on momentum and collisions
- John_Locke
- · Replies 2 ·
Your friendly physics retard is at it again
- Brin
- · Replies 7 ·
Why Is Concrete Weak in Tension and How Can It Be Improved?
- beterban
- · Replies 4 ·
Calculate Mass of Missing Piece Exploding Boulder
- yoleven
- · Replies 2 ·
Maximum and minimum resultant of 1 cm and 4 cm vectors
- MoreZitiPlease
- · Replies 13 ·
Simple Harmonic Motion and parallel-axis-theorem
- Thomas_
- · Replies 4 ·
One mass on, one half off, attached by a string
- issisoccer10
- · Replies 1 ·
What Does v² Represent in the Equation v² = u² + 2as?
- ssj
- · Replies 4 ·
Calculate the components of the vector
- MoreZitiPlease
- · Replies 8 ·
How Accurate Are My Vector Addition Results?
- MoreZitiPlease
- · Replies 5 ·
How Do You Calculate the Mass of a Spring in Simple Harmonic Motion?
- Pee-Buddy
- · Replies 1 ·
What is the velocity at impact?
- scotthands
- · Replies 7 ·
Finding metal thickness of a hollow sphere from weight in air and water
- racmhead
- · Replies 1 ·
Why Is Total Kinetic Energy Conserved in Some Collisions but Not in Others?
- jack1234
- · Replies 1 ·
What Equations Are Used in Projectile Motion Calculations?
- Pratheepa
- · Replies 1 ·
What Are the Vertical and Horizontal Forces on Door Hinges?
- issisoccer10
- · Replies 1 ·
Car on incline, mass and pulley system with friction
- ~christina~
- · Replies 4 ·
Bead confined to a circular hoop
- issisoccer10
- · Replies 10 ·
How do I calculate the moment of inertia for a wagon wheel with spokes?
- cukitas2001
- · Replies 22 ·
Calculating Distance Traveled on an Incline with Friction
- ViewtifulBeau
- · Replies 4 ·
Calculating Focal Length and Minimum Diameter for Laser Beam Diffraction
- strikingleafs01
- · Replies 3 ·
Understanding Gravity: The Role of Forces in Momentum Questions
- 404
- · Replies 2 ·
What Is the Magnitude of the Pulling Force Exerted by the Wife?
- brittany8258
- · Replies 2 ·
Transverse wave problem. It's a doozy
- Mr. Sinister
- · Replies 1 ·
Spring-propelled block over cliffs with friction
- jigs90
- · Replies 6 ·
Doppler effect with 600 Hz generator on rotating rope
- neoking77
- · Replies 10 ·
How Many Fission Reactions in a Year
- Ryo124
- · Replies 3 ·
Can a roller coaster hill be higher than the first one?
- jack1234
- · Replies 1 ·
Temperature rise of pond heated by solar energy flux
- timothy997
- · Replies 1 ·
CENTER OF MASS of a circular conical surface
- Meister RaRo
- · Replies 1 ·
Impulse, Momentum, and Baseball
- Soaring Crane
- · Replies 4 ·
Can't find mistake on Spring/block Energy problem
- falco451
- · Replies 1 ·
Can static friction cause an accelerating train to stay on its tracks?
- jack1234
- · Replies 7 ·
Net work done on boat by locomotives
- brittany8258
- · Replies 1 ·
Reducing Risk of Injury: The Impact of Air Bags on Stuntmen's Falls
- jack1234
- · Replies 3 ·
Mass energy released in U-235 fission to zirconium and tellurium
- Ryo124
- · Replies 2 ·
Why does a metal bar on a wooden deck feel colder than the wood?
- jack1234
- · Replies 4 ·
Why Must We Use Absolute Temperature for Ideal Gas Law?
- jack1234
- · Replies 2 ·
Finding net force from three 230 N ropes on a scale
- Bensky
- · Replies 1 ·
How Far Does a Block Slide Up an Inclined Plane?
- jigs90
- · Replies 2 ·
Calculate the mass of sand added to the bucket
- WebassignHelp
- · Replies 7 ·
Collision With Linear and Angular Momentum
- drakoniis
- · Replies 3 ·
Calculate RMS Voltage for 120V, 60Hz Transformer
- debwaldy
- · Replies 1 ·
Bowling ball, incline and torque
- Niles
- · Replies 5 ·
Universal gravitation problem
- physicsbhelp
- · Replies 8 ·
Rotational dynamics-rotating door w/ 4 panes
- Kate Green
- · Replies 3 ·
Two hanging masses supporting object
- mvr821
- · Replies 2 ·
Degrees of Freedom and Molar Specific Heats
- mit_hacker
- · Replies 2 ·
Rectangular sheets, angular velocity time?
- rcmango
- · Replies 1 ·
Why can't people grow infinitely tall?
- black_squirrel
- · Replies 7 ·
How Does Friction Affect the Velocity of a Mass on a Spring?
- henry2221
- · Replies 8 ·