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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Non-constant index of refraction due to layered material.
- Fraqtive42
- · Replies 10 ·
What Is the Maximum Horizontal Force to Apply Without the Upper Block Slipping?
- barthayn
- · Replies 12 ·
Calculating Relativistic Doppler Shift for Moving Radar
- fluidistic
- · Replies 1 ·
AP Physics: Do you think I lost points for this on the AP exam?
- GreenPrint
- · Replies 2 ·
Rate of decrease of the magnetic fields
- Oblakastouf
- · Replies 1 ·
How Does Friction Affect the Acceleration of a Truck Carrying a Heavy Crate?
- homyungtj
- · Replies 3 ·
Graph of simple harmonic motion
- mizzy
- · Replies 5 ·
Finding vector components with angles from a displacement diagram
- mizzy
- · Replies 1 ·
Kinematics, getting position and velocity equations from an acceleration graph
- Telemachus
- · Replies 1 ·
Finding x and y components from an angle
- Null_
- · Replies 1 ·
Solving for Displacement in Frictionless Plane
- Je m'appelle
- · Replies 8 ·
Why isn't average speed just the mean of 135 mph and 90 mph?
- NettioB
- · Replies 9 ·
SHM: Why do Both Masses Have Same Periods?
- gaobo9109
- · Replies 5 ·
W = F d cos θ Is Algebra Okay for Work?
- peacerosetx
- · Replies 5 ·
Cycloid Particle: Finding Velocity and Acceleration
- shyta
- · Replies 1 ·
What is the differential form of the continuity equation for mass?
- Dafe
- · Replies 2 ·
Calculate difference between observed frequency and original frequency
- mizzy
- · Replies 11 ·
Calculate the mechanical energy
- 8uhohs
- · Replies 3 ·
Horizontal component of the superhero’s displacement?
- Thousands
- · Replies 4 ·
Artificial gravity in a washing machine
- agadag
- · Replies 5 ·
Calculate the minimum frequency needed to start the electron
- pyxolo
- · Replies 2 ·
Finding the impluse of a stopping car
- Ibby
- · Replies 6 ·
Kinetic energy, special relativity
- fluidistic
- · Replies 5 ·
The current given from a Car Battery?
- Tinger
- · Replies 7 ·
Estimating Earth's mass from light travel time and surface gravity
- hasan_researc
- · Replies 6 ·
Problem Involving Ring's gravitational force and velocity of distant partice
- Cocagola
- · Replies 3 ·
How Long Does It Take for an Oil Drop to Travel Between Charged Plates?
- roam
- · Replies 1 ·
Does infinite time with correct conditions make an event probability 1?
- dcroose
- · Replies 2 ·
Resolving vectors - direction issue
- Hemingway
- · Replies 3 ·
How do I solve a series-parallel circuit with a 40V power supply?
- kai92
- · Replies 6 ·
Tension in rope connecting blocks A and B on incline with friction
- Ogakor
- · Replies 3 ·
How to find rocket thrust, force impulse of energy method?
- virgil123
- · Replies 13 ·
How Do Altitude, Pressure, and Temperature Affect Airship Gas Dynamics?
- TheUnkown
- · Replies 3 ·
How to Calculate Force Applied on a Ladder Supported by a Wall and Ground?
- Brunno
- · Replies 8 ·
What Direction Should You Swim to Minimize Drift in a River Current?
- kudoushinichi88
- · Replies 7 ·
Identifying Vectors: Examples and Explanation for Basic Vector Questions
- Null_
- · Replies 5 ·
How Is Kinetic Energy Converted in a Spring System with Friction?
- R.H.2010
- · Replies 1 ·
How Accurate Is Our Estimation of the World’s Ocean Mass?
- hasan_researc
- · Replies 3 ·
Relativity length contraction problem
- Fizex
- · Replies 2 ·
Motion at constant acceleration problem
- cubejunkies
- · Replies 7 ·
Magnetic field from rectangular current loop
- ovoleg
- · Replies 9 ·
Maxwells theory satisfied Faradasy desire
- imy786
- · Replies 2 ·
Electric potential of a conductor.
- Terocamo
- · Replies 6 ·
Can a Spaceship Always Spot the Lone Inhabitant on a Spherical Planet?
- Heirot
- · Replies 10 ·
Finding velocity zero time, max acceleration, and phase in SHM
- mizzy
- · Replies 10 ·
Finding total mass of sand grains with surface area of a cube
- rt3ll3z
- · Replies 1 ·
Basic linear motion question.Is it good?
- german1234
- · Replies 1 ·
Finding X-component of this force vecotr
- prepharmtaby
- · Replies 1 ·
[Kerala PMT 2005 Physics] [Online QP Solving]
- dharavsolanki
- · Replies 1 ·
Two bloack stack on top, find max force to prevent skidding
- vincer777
- · Replies 1 ·
Estimating Books in College Library: 3500sqm Space
- iRaid
- · Replies 2 ·
How Does Battery EMF Affect Power Dissipation in a DC Circuit?
- eprparadox
- · Replies 3 ·
How to Solve a Kinematics Equation for a Dropped Ball from a Balloon?
- nirajnishad
- · Replies 4 ·
Find the Speed of a Freight Car When All the Sand is Gone
- Shing
- · Replies 3 ·
Understanding Phase Shift in RC Circuits
- pat666
- · Replies 5 ·
Circular Motion and tangential acceleration Problem
- animesh27194
- · Replies 5 ·
How Do You Calculate Velocity on an Elliptical Path at a Specific Point?
- pollytree
- · Replies 3 ·
When does impedance depend on frequency in AC circuits?
- pat666
- · Replies 4 ·
Calculating Normal Force: Adding/Subtracting?
- barthayn
- · Replies 3 ·
Physics Projectile Motion Question
- pollytree
- · Replies 8 ·
Heat/fusion/vaporization question?
- pirates01
- · Replies 3 ·
Calculating the highest point of a trajectory
- sjduhig
- · Replies 1 ·
Number of maxima in double slit interference for 500 nm light
- svitak
- · Replies 5 ·
F.B.D. for beam on disabled hoist (confirmation on work needed)
- LauraR
- · Replies 4 ·
Air track acceleration experiment gives g = 0.48 m/s²
- Archy
- · Replies 17 ·
Converting 38.1 nautical miles to kilometers for salvage ship location
- rt3ll3z
- · Replies 2 ·
Moment of Inertia of 2-Spheres Connected by Rod
- bjnartowt
- · Replies 4 ·
Physics course SPH3U-A through ILC
- Ryan B
- · Replies 1 ·
2 Resistors in Parallel versus in Series
- mlostrac
- · Replies 2 ·
Power dissipated by 60W and 75W bulbs connected in series at 220V
- poskhare
- · Replies 2 ·
Yo-yo Dynamics: Stopping Time Calculation
- Gary531
- · Replies 1 ·
Prove a spinning yo-yo has angular velocity
- virgil123
- · Replies 2 ·
Vector help with tension and magnitude
- Frenchie
- · Replies 1 ·
Question on Practical Electricity
- zensushi
- · Replies 1 ·
How Can Weight, Surface Area, and Speed Affect Friction?
- 8uhohs
- · Replies 1 ·
Energy of a proton using de broglie formula
- curiouschris
- · Replies 5 ·
Trumpet players, sound intensity level
- LBRRIT2390
- · Replies 3 ·
Calculating a Model Rocket's Speed and Altitude Using Acceleration of Gravity
- gragsur
- · Replies 1 ·
Solve Physics Problems: Alternative Sources for Challenging Questions
- inkpot
- · Replies 4 ·
How Do You Calculate the Frequency of a Tuning Fork Using Water Resonance?
- mizzy
- · Replies 10 ·
Electric Potential Problem Assistance
- phunphysics1
- · Replies 3 ·
Problem involving two Ice Skaters' Positions
- Cocagola
- · Replies 3 ·
Find the work done by the train Kinetic energy problem
- pokeefer
- · Replies 10 ·
Block on block with pulley and bucket: max sand load
- Emil233
- · Replies 1 ·
How Fast Is the Car Moving When the Pebble Flies Out of the Tire Tread?
- sona1177
- · Replies 4 ·
Sign of acceleration in the pulley-type question
- tsw99
- · Replies 3 ·
Internal energy and pv diagrams
- coffeem
- · Replies 1 ·
Does the Launch Angle Affect Efficiency in a Slingshot?
- donkeycopter
- · Replies 18 ·
Why Does the Factor of 1/2 Appear in Dynamic Pressure Calculations?
- malindenmoyer
- · Replies 3 ·
What is the Average Angular Speed of the Leaning Tower of Pisa?
- R.H.2010
- · Replies 1 ·
Is Entropy Change Different for Reversible Paths in Ideal Gas?
- eprparadox
- · Replies 3 ·
Given 2 Sets of Data, Find 3rd (Velocity, Acceleration?)
- hatesmath
- · Replies 1 ·
Atwood Machine and the Work done
- animesh27194
- · Replies 4 ·
1D Kinematics - 2 stones thrown - where do they meet?
- Hemingway
- · Replies 4 ·
Power problem with water over the dam - why not Fv?
- Ryker
- · Replies 3 ·
Can the fit equation accurately predict the discharging of a capacitor?
- mlostrac
- · Replies 2 ·
How Do Simultaneous and Axis Rotation Methods Affect Force System Calculations?
- widger
- · Replies 1 ·
Steady Temp of a heater in a box (Thermodynamics)
- cdanderson04
- · Replies 6 ·
Projectile Motion Problem - Diving
- Whotto
- · Replies 10 ·