Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Solving Trigonometric Problems with the Laws of Sines and Cosines
- Poweranimals
- · Replies 2 ·
How Long Does a Cricket Take to Jump Portions of Its Full Leap?
- BronBurs
- · Replies 4 ·
Finding a Value of N for a Limit Question: How to Solve |r(x) - 3x/2| < 0.001
- johnnyICON
- · Replies 5 ·
Intersection of surfaces/tangent vector
- Odyssey
- · Replies 2 ·
Struggling with a Physics Problem? Can Anyone Help Me Solve It?
- stunner5000pt
- · Replies 2 ·
Two trains leave a station, and an observer misses them both what does he see
- stunner5000pt
- · Replies 2 ·
Need help with this cons. of momentum prob.
- nazarip
- · Replies 8 ·
Vector function for the curve of intersection of the paraboloid
- DeadxBunny
- · Replies 2 ·
Torque from magnetic field/current
- PPhilly
- · Replies 2 ·
Calculating Current Needed to Lift a Cross Piece in a Horizontal Magnetic Field
- Physicsisfun2005
- · Replies 2 ·
Just need to be pointed in the right direction
- rx-[7]
- · Replies 2 ·
Force exerted to stop falling object
- splinter
- · Replies 4 ·
How Is Energy Dissipated by Friction Calculated in a Moving Train?
- envscigrl
- · Replies 2 ·
Learning Coupled Motion in AP Physics
- Calgria
- · Replies 3 ·
How Do Angles Affect Puck Movement in a Non-Head-On Collision?
- shawonna23
- · Replies 3 ·
What Evidence Supports Light's Ability to Travel Through a Vacuum?
- krypt0nite
- · Replies 2 ·
Wheel and turntable with different angular velocity
- physicsss
- · Replies 5 ·
Solving Statics Truss Problems: Plotting Force in Member BC & Angle ø Range
- LewisNL
- · Replies 2 ·
How Does Electrostatic Induction Affect Neutral Objects?
- punjabi_monster
- · Replies 2 ·
Discover the Acceleration of a Block on a Slope without Air Resistance
- Novus Dakota
- · Replies 2 ·
Centrifugal force in high pressure vessel
- drewman13
- · Replies 7 ·
What Is the Maximum Kinetic Energy of a Pendulum Bob?
- envscigrl
- · Replies 2 ·
Angular speed of rod with 2 masses seems EZ but NOT
- Elbhi
- · Replies 2 ·
Is Gravity Always Negatively Affecting a Ball?
- UrbanXrisis
- · Replies 63 ·
Momentum + Friction force = me depressed
- dabouncerx24
- · Replies 4 ·
Does Widening the Slit Increase Brightness in Young's Slit Experiment?
- saltrock
- · Replies 4 ·
Find the next line in the sequence
- hailee
- · Replies 5 ·
What magnitude of force must you apply to hold the platform in this position?
- rrastam
- · Replies 2 ·
How Do I Solve Parts C and D for a Stone on a Spring Problem?
- HobieDude16
- · Replies 2 ·
Coefficient of friction on rock of 0.70
- zero1520
- · Replies 4 ·
How Does a Magnetic Field Affect a Charged Particle's Motion?
- vsage
- · Replies 2 ·
Help with acceleration on incline
- jhson114
- · Replies 20 ·
Centripital acceleration problem
- benji
- · Replies 7 ·
Future of Fire: What's In Store?
- Nezrin
- · Replies 9 ·
Objects in Equilibrium/Center of Gravity
- BlackMamba
- · Replies 16 ·
Find the direction and magnitude of the impulse
- dg_5021
- · Replies 2 ·
Changing angular acceleration of a shaft
- jmf322
- · Replies 2 ·
Calculate UV and IR Photon Energy: 320nm & 5000nm Wavelengths
- Math Is Hard
- · Replies 2 ·
Derivative of x^n: Using First Principles and Breaking it Down
- JasonRox
- · Replies 6 ·
Where to find essays by professors?
- majinknight
- · Replies 2 ·
Wood Movement Due to Rubber vs. Aluminum Bullet Impact: Explanation
- butz3
- · Replies 2 ·
Conservation of Momentum problem
- Lannie
- · Replies 3 ·
Protons to accelerate a space probe
- josephcollins
- · Replies 2 ·
Finding a 3x3 Matrix D that Satisfies a Given Equation
- Divergent13
- · Replies 4 ·
How Far Will a Box Slide Before Stopping If Pushed with a Force of 21.9N?
- Alem2000
- · Replies 2 ·
How is the English Grading System for A-level Mathematics?
- ponjavic
- · Replies 4 ·
Any tips on improper integrals? (also, question)
- FancyNut
- · Replies 4 ·
Calculating Impact Speed of Meteor Falling from 811 km
- strugglin-physics
- · Replies 5 ·
What is the tension force of each cable?
- compute_a_nerd
- · Replies 4 ·
Solving Integration for Force Acting on an Object | Constant f and c
- Speags
- · Replies 2 ·
Rotating Wedge & Rise of Mass: Speed Calculation
- hauthuong
- · Replies 8 ·
Resonant Frequency and Air Column Length
- garytse86
- · Replies 5 ·
Calculating Speed of a Rolling Cart with Added Mass and Running Man
- ElectricMile
- · Replies 4 ·
What is the integral of sin^3 theta?
- redshift
- · Replies 4 ·
Why Are Helium, Neon, and Argon Considered Inert?
- ruby_duby
- · Replies 2 ·
Hockey Puck Motion: Determining Position & Time to Rest
- Speags
- · Replies 2 ·
Does a Car Exhibit Simple Harmonic Motion?
- garytse86
- · Replies 4 ·
Help w/ this force problem please
- viendong
- · Replies 3 ·
Make a Non-Electric Fan - Step by Step Guide for Students
- wogdogg
- · Replies 2 ·
Ferris Wheel Centripetal Force: Solving a Vertical Circular Motion Problem
- gaborfk
- · Replies 2 ·
Solving a Friction Force and Coefficient of Friction Problem
- nitegrl
- · Replies 2 ·
Differential Equations lesson today
- mystro
- · Replies 2 ·
Calculating New Blood Pressure with Drug-Induced Arteriole Radius Increase
- HeatherMrkr
- · Replies 2 ·
How Do Diffraction Gratings Affect Light Wavelengths?
- wolfson_1123
- · Replies 2 ·
Complex Conjugates: Questions & Answers
- Hypnotoad
- · Replies 6 ·
One question on conservation of mass and energy
- stunner5000pt
- · Replies 1 ·
Two Stats questions for Math nerds (std. deviation, mean, subsets)
- ski
- · Replies 2 ·
How much work is done by friction in this scenario?
- Hughey85
- · Replies 2 ·
How High Will the Block Rise After Hitting the Spring?
- Hughey85
- · Replies 2 ·
Calculating Velocity in a Sticky Situation
- FancyNut
- · Replies 4 ·
How Do Different Frequencies Affect Sound Intensity Levels?
- Himura Kenshin
- · Replies 2 ·
How Is Power Calculated in a Simple Work-Energy Problem?
- StonieJ
- · Replies 2 ·
Mnemonic devices for derivatives
- Shay10825
- · Replies 2 ·
Mass spectrometer radius of the path
- 1timeuse
- · Replies 2 ·
Magnetic field of a lightning bolt
- 1timeuse
- · Replies 2 ·
Please with circuit , thanks first
- tinhnho
- · Replies 2 ·
How Far Is a Point from a Wire Given Current and Magnetic Field?
- 1timeuse
- · Replies 2 ·
How Do You Calculate and Graph Impedance in RC Filters?
- Monsu
- · Replies 2 ·
Fluid Mechanics Density problems
- Susan
- · Replies 2 ·
What is the correct speed of the bullet at impact with the block?
- doxigywlz
- · Replies 13 ·
How Does Kirchhoff's Loop Rule Apply to a Two Battery, Three Resistor Circuit?
- helpme12345
- · Replies 4 ·
What Is the Correct Formula for the Self Inductance of a Solenoid?
- Monsu
- · Replies 2 ·
Calculate the forces against the puck?
- Tanya Back
- · Replies 2 ·
Will Jack's swing break the vine?
- vtech
- · Replies 2 ·
How much time does it take to lift the piano?
- BlackMamba
- · Replies 2 ·
How Is Work Calculated in the Presence of Kinetic Friction?
- shawonna23
- · Replies 2 ·
Is the Color Spectrum Just a Fraction of the Electromagnetic Spectrum?
- krypt0nite
- · Replies 2 ·
Preparing Physics Tournament Project: Wind-Powered Car Design
- ponjavic
- · Replies 5 ·
I on this problem, please if someone could look at it and help me out
- miranda82
- · Replies 9 ·
How Does Wind Affect a Boat's Speed and Direction?
- guru
- · Replies 4 ·
Momentum Conservation in Tennis Ball Collision
- quick
- · Replies 3 ·
Why Must m Be a Power of 2 for 2^m + 1 to Be Prime?
- Zurtex
- · Replies 2 ·
Is a Skydiver at Terminal Velocity an Inertial Reference Frame?
- Soaring Crane
- · Replies 2 ·
Calculating the Height of Earth's Atmosphere with Physics Math | Expert Help
- EdenKhan
- · Replies 2 ·
Can a Baseball Thrown at 25 m/s Hit a Window 13 Meters High and 50 Meters Away?
- descartes75
- · Replies 4 ·
Confusing Physics Concepts Explained: Solving for Net Force and Fx
- Aladdinnas
- · Replies 2 ·
Calculate Velocity of 3.15 kg Ball Released from Compressed 1.96 m Spring
- strugglin-physics
- · Replies 4 ·
I'm finding force and vectors extreemly difficult
- faisal
- · Replies 2 ·
Quick Physics Q (total distance)
- preet
- · Replies 3 ·