Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Mastering Vector Direction: Tips and Tricks for Understanding Degrees
- superdude
- · Replies 3 ·
How is the refractive index of water calculated in rainbow formation?
- Air
- · Replies 6 ·
Another angular acceleration problem. Converting radians to meters
- rosstheboss23
- · Replies 2 ·
Diffraction Grating: What's It Called?
- kash25
- · Replies 2 ·
How Much Does a 2kg Brick Weigh and What Is Its Acceleration When Dropped?
- vandorin
- · Replies 11 ·
Aircraft Carrier: Dynamics Question #4 | Find Acceleration & Retarding Force
- looi76
- · Replies 2 ·
Two Questions on Waves and Polarised Light
- Air
- · Replies 2 ·
Thermal Stress and a Duel rod of Steel and Al.
- TFM
- · Replies 29 ·
Calculate Phase Difference for Single-Slit Diffraction
- Math Jeans
- · Replies 3 ·
Probability distribution of stationary Schrodinger equation
- ariana13
- · Replies 1 ·
Motion of Block Down an Inclined Plane with Friction
- danago
- · Replies 3 ·
Work to construct a conducting sphere
- ClCripper
- · Replies 1 ·
Find the recoil velocity of the nucleus.
- looi76
- · Replies 1 ·
What causes Venus to be hotter than Mercury despite being farther from the Sun?
- salsabel
- · Replies 3 ·
Max Force on Protons at 1000km/s
- inferno_gogo
- · Replies 3 ·
Potential Due to a Collection Charges
- simo
- · Replies 3 ·
Trying to work out isothermal heat transfer
- abbie230391
- · Replies 2 ·
How do I rearrange the equation P1V1/T1=P2V2/T2 to solve for T2?
- abbie230391
- · Replies 2 ·
SUVAT Problems: Why t-x and Not t+x?
- nokia8650
- · Replies 2 ·
What Determines Current Flow in Each Branch of a Parallel Circuit?
- david18
- · Replies 2 ·
Calculate Flight Time of Artillery Shell
- sul6an
- · Replies 4 ·
Calculating Axle Force and Rotational Inertia of a Wheel with a Horizontal Spoke
- lehel
- · Replies 1 ·
How Does the Spring Constant Affect Piston Equilibrium?
- bcjochim07
- · Replies 1 ·
Solving the Forces on a Box in a Moving Car
- Vermillion
- · Replies 6 ·
Tiltmeter Problem: Calculating Water Level Changes in Geologic Measurements
- bcjochim07
- · Replies 3 ·
Physicsline Exam Q3: Transistor Output - Debating Correct Answer
- sanado
- · Replies 2 ·
Help I Have An Electronics Test
- sanado
- · Replies 2 ·
Solve Dynamics Q#5: 0.6kg Ball's Final Velocity
- looi76
- · Replies 1 ·
Horizontal rotating rod with another mass attached
- zinc79
- · Replies 1 ·
Solved Dynamics Question #3: Calculate Velocity, Momentum, and Force
- looi76
- · Replies 2 ·
Linear Momentum - One-Dimensional Internal Explosion
- phyzmatix
- · Replies 2 ·
What resistance is needed if current is .300 A?
- pebbles
- · Replies 2 ·
Calculate Max Angle of Deflection for Ball on Cord
- bob7
- · Replies 3 ·
Snells Law (Changing view of an object through different materials)
- rzermatt
- · Replies 2 ·
Probability problem from Griffiths QM
- obiesigma
- · Replies 2 ·
Find Force from Collision of 3 Billiard Balls
- bob7
- · Replies 13 ·
Acceleration due to gravity problem.Help
- NewtonJR.215
- · Replies 3 ·
Can You Solve These General Physics Problems?
- NewtonJR.215
- · Replies 4 ·
Maxwell's equations in relativistic physics
- elivil
- · Replies 1 ·
Optical phenomena that can be photographed?
- !Live_4Ever!
- · Replies 3 ·
Moments of Inertia, Centres of Mass help
- raphile
- · Replies 3 ·
How Do Charges Distribute on a Spherical Conducting Shell with a Central Charge?
- Deoxygenation
- · Replies 8 ·
How long would it take for a block of ice to melt in the sun?
- RajdeepSingh7
- · Replies 4 ·
Balancing Magnetic & Gravitational Forces: A Current-Balance Investigation
- Kylah
- · Replies 3 ·
Dynamics Question #2: Calculate Force, Acceleration, Speed
- looi76
- · Replies 7 ·
Square Pyramid Gauss's Law Trouble
- Prologue
- · Replies 3 ·
Need Source of Projectile in Vacuum Outcome
- Zinic
- · Replies 1 ·
Wave functions and probability
- ariana13
- · Replies 4 ·
Understanding Voltmeters: How They Measure Voltage in a Series Circuit
- asdasdasd
- · Replies 5 ·
Incidence, Refraction, Critical Angle
- Air
- · Replies 7 ·
Positive Focal Length Image - Real, Diminished, Inverted and Smaller?
- Air
- · Replies 3 ·
Calculating Ultrasound Speed in Liquid Using an Oscilloscope Trace
- Air
- · Replies 9 ·
Re-Arranging Formula for Creep Rupture Time Calculation | Helpful Tips"
- hoola
- · Replies 1 ·
Solving Dynamics Q: Car Pulls Trailer w/150N Force
- looi76
- · Replies 17 ·
How Many Internal Reflections Occur Before a Laser Emerges?
- JinM
- · Replies 5 ·
Ski Jump Problem: Find the Distance Down the Slope
- oray
- · Replies 3 ·
Dipole (electrical) and Electric Field Concept
- wk1989
- · Replies 3 ·
Can banked curves affect the acceleration of a car?
- salsabel
- · Replies 3 ·
Young's double slit experiment edges problem
- meru
- · Replies 1 ·
Voltage in Series Circuits: Battery vs. Resistors
- flower1319
- · Replies 2 ·
Potential Divider: Understanding Its Purpose
- Air
- · Replies 2 ·
What Happens When a Magnet Approaches a Solenoid?
- nblu
- · Replies 2 ·
Comparing Energy Conversion Rates of Photons and Solar Panels
- DoubleHelix
- · Replies 2 ·
What force is exerted on the windscreen?
- looi76
- · Replies 3 ·
Wave Propagation in a Hanging Rope: Speed at Top vs Bottom
- forsberg21
- · Replies 6 ·
What Does the Scale Read When the Elevator Accelerates Upward?
- Hevonen
- · Replies 14 ·
Limiting Resistor: Purpose of Placing in Front of LED
- sanado
- · Replies 1 ·
What is the final velocity and direction of motion?
- looi76
- · Replies 7 ·
So …|-------|---What height does the snake see?
- happytimes
- · Replies 2 ·
Mechanical Energy vs Potential Energy & Kinetic Energy
- Lexington
- · Replies 3 ·
A box of mass 8.0kg is being dragged along the ground by a force of 30N.
- looi76
- · Replies 11 ·
The AnswerUnderstanding Kirchhoff's Laws and Sign Conventions for RL Circuits
- cherev
- · Replies 3 ·
What is the resultant force and what is its consequent acceleration?
- looi76
- · Replies 3 ·
Calculating Average Speed to Catch a Ball Thrown from a Building
- NDiggity
- · Replies 4 ·
How Does Optical Radiation Affect Electron Velocity Uncertainty?
- clambake
- · Replies 1 ·
Entropy of a system can never decrease
- shenwei1988
- · Replies 1 ·
How Is Light Intensity Transmitted Through a Glass Slab Calculated?
- Math Jeans
- · Replies 8 ·
Determining the Direction and Speed of a Bee's Flight
- alksjadf
- · Replies 7 ·
How Do You Calculate Angular Acceleration of a Rod at a Specific Angle?
- rock.freak667
- · Replies 11 ·
Regarding Gravitation and Gravitational Fields
- nblu
- · Replies 5 ·
What is the kinetic energy of an electron with a wavelength of 0.850 x 10^-10 m?
- Cowtipper
- · Replies 4 ·
Coupled oscillator mass on spring question?
- coffeem
- · Replies 3 ·
Product of spectra by diffraction gratings
- Arlz
- · Replies 4 ·
Why Does Inverting a Heated Can in Water Cause It to Implode?
- Heroes
- · Replies 5 ·
Calculating Efficiency of Solar Panel with Light Bulb
- The Great Lad
- · Replies 6 ·
Average force/impulse/collision problem
- NoPhysicsGenius
- · Replies 2 ·
Final Temperature After Phase Change
- Newton86
- · Replies 9 ·
Angular momentum of merry go round
- MAins
- · Replies 1 ·
Using the condition of vector equilibrium
- ritwik06
- · Replies 8 ·
Using ampere's law with current density
- terminator88
- · Replies 33 ·
Work energy incline with spring
- Jason03
- · Replies 15 ·
Which Components Are Crucial for Biasing an NPN Transistor?
- sanado
- · Replies 1 ·
Maximum Acceleration of Stacked Blocks on Vertical Spring
- fiziksfun
- · Replies 7 ·
Calorimeter with ice and water
- Vuldoraq
- · Replies 4 ·
Copper calorimeter final temperature
- Vuldoraq
- · Replies 4 ·
Calculate average spacing of molecules
- helpmeplease1
- · Replies 1 ·
Solving Fish Refraction Problem Using Law of Refraction
- on204
- · Replies 2 ·
Acceleration in a Pulley System
- grouchy
- · Replies 5 ·
Discovering the Wavelength of a Dog Whistle | Quiz-Ready Guide
- Khemkhajon
- · Replies 2 ·
Need help formulating moments about a point.
- rock.freak667
- · Replies 5 ·