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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Calculating Electric Field Strength to Stop an Electron
- mathcrzy
- · Replies 3 ·
What am i doing wrong (water thru a tube question)
- mujadeo
- · Replies 3 ·
Designing a Safe Curved Roadway: AP Physics Problem for Civil Engineers
- daniel-c
- · Replies 1 ·
How Does Earth's Slowing Rotation Affect the Length of Our Days Over Centuries?
- AnkhUNC
- · Replies 1 ·
Work, Energy, and Power problems
- Twilit_Truth
- · Replies 14 ·
Calculating Kinetic Energy, Velocity and Height for a .5kg Ball
- KatieLynn
- · Replies 5 ·
Deriving the Thin Lens Formula: How Does Equation 1 Relate to the Triangles?
- Larrytsai
- · Replies 2 ·
How Does the Electric Field Vary with Distance in a Cylindrical Shell?
- JayKo
- · Replies 10 ·
Calculating Speed of Sound with a Resonating Tube
- KatieLynn
- · Replies 7 ·
Two physics problems involving collisions
- Cowtipper
- · Replies 3 ·
Do I need to convert wavelength to meters
- KatieLynn
- · Replies 2 ·
Understanding Light, Lenses, and Mirrors: Final Exam Review
- dranseth
- · Replies 1 ·
Looking for vector drawing program.
- Avenger9
- · Replies 1 ·
Kirchoff's Law: Which Direction Does the Current Flow?
- atwong713
- · Replies 3 ·
Gravitation and Circular Orbits
- kevi555
- · Replies 5 ·
How Fast Must a Bullet Travel to Heat Water by 1.3 Degrees Celsius?
- shakejuhn
- · Replies 2 ·
Xcel Energy's Comanche 3 Power Plant in Pueblo, CO
- Winzer
- · Replies 1 ·
Solve More Force Problems: Mass Calculation
- snoggerT
- · Replies 3 ·
Finding the Coordinates of a Point Using Rectangular and Polar Formulas
- ArcadianGenesis
- · Replies 2 ·
How Does a Siphon Work with Different Liquid Heights and Pressures?
- Destrio
- · Replies 1 ·
Fluids: Buoyancy Homework - Prove Archimedes' Principle
- chantalprince
- · Replies 4 ·
What Is the Maximum Angle of Incidence for Light in Diamond?
- dranseth
- · Replies 3 ·
Problem finding angular velocity
- Coletrain12
- · Replies 2 ·
Simple Harmonic Motion - Floating Object
- drillman9
- · Replies 6 ·
Find postition on third charge question
- flaming
- · Replies 3 ·
Gravitational Forces acting on a satellite
- Lyphta
- · Replies 4 ·
Calculating Negative Charge in Nitrogen Gas: A Static Electricity Problem
- jmail
- · Replies 2 ·
Understanding Contact Forces: Homework Question and Solution
- hasnain721
- · Replies 5 ·
Net Force Question with no velocity or time given.
- physco827
- · Replies 3 ·
What is the Potential Difference VC-VA in the Electric Field Problem?
- BuBbLeS01
- · Replies 1 ·
What Is the Impact Speed of a Ball Thrown from a Window?
- J03
- · Replies 1 ·
What is the angle of the hanging ball in an electric field of 1.00×10^5 N/C?
- Goldenwind
- · Replies 3 ·
Calculate Fnet to Find Change in Momentum
- physco827
- · Replies 6 ·
How Do Electric Fields Accelerate Electrons?
- flaming
- · Replies 1 ·
Find speed of object traveling up a ramp
- PhysicsGirl
- · Replies 1 ·
Total Energy Problem: Ratio of A to B
- PhysicsGirl
- · Replies 2 ·
Physics Homework Help: Finding String Tension in Vertical Circular Motion
- PhysicsGirl
- · Replies 1 ·
What was the speed of the bullet before it hit the block?
- PhysicsGirl
- · Replies 1 ·
How Do You Calculate the Potential Difference to Accelerate a He+ Ion?
- BuBbLeS01
- · Replies 10 ·
Calculating Charge Flow in Capacitor: 1.02V to 6.78V Battery Swap
- BuBbLeS01
- · Replies 4 ·
Adding heat for final temperature
- shakejuhn
- · Replies 4 ·
Physics help average acceleration
- Melchior25
- · Replies 3 ·
Different values with rotational kinematic equations
- JinM
- · Replies 2 ·
Sphere's Electric Potential HELP
- BuBbLeS01
- · Replies 3 ·
Calculating Final Temperature of a Mixture with Phase Change
- dranseth
- · Replies 5 ·
Need Help with Newton's Laws Problems?
- psychfan29
- · Replies 2 ·
Calculating Angular Acceleration and Required Force for Forearm Throw
- Amerk2
- · Replies 2 ·
Prove a vector is perpendicular to a plane?
- dangsy
- · Replies 4 ·
Moment of inertia and a gyroscope
- Distr0
- · Replies 9 ·
Solved: Spark Transmitter Circuit Connection
- DemoNibs
- · Replies 6 ·
Constructing a Competitive Alternative to the Tesla Coil: Tips and Tricks
- DemoNibs
- · Replies 5 ·
Better Project than Tesla Coil | Get Help Now
- DemoNibs
- · Replies 3 ·
What is the initial velocity of a flea that jumps to a maximum height of 0.550m?
- Scrum
- · Replies 3 ·
Continuity: Constant mass flow rate
- chantalprince
- · Replies 2 ·
Ice displacing water question, - really bad
- mujadeo
- · Replies 3 ·
Electric field due to arc of charge
- Nikita23
- · Replies 6 ·
Can Two Solenoids Levitate a Steel Ball?
- yawdapaah
- · Replies 1 ·
I need AP Physics B FR/MC Questions
- xpeachpleasurex
- · Replies 1 ·
Help with something to do with angular stuff?
- paradoxical
- · Replies 6 ·
Kinematics - Find static friction coefficient of a coffee cup
- Elvis
- · Replies 4 ·
How Strong is the Electric Field Between Two Plates?
- Kajayacht
- · Replies 3 ·
Optics, lens problem pleaase help
- foolISH
- · Replies 2 ·
What is the period of revolution for a charged particle in a magnetic field?
- v13tn1g
- · Replies 1 ·
Excess electrons or protons on drop.
- rcmango
- · Replies 3 ·
What is the net force on an airplane window at an elevation of 12500 m?
- xdarkelf714x
- · Replies 3 ·
Gravitation and Circular Orbits
- kevi555
- · Replies 1 ·
Lens Problem, Help from Anyone Thank you, I appreciate it very much
- physicsbhelp
- · Replies 12 ·
What Are the Solutions to These River Current Boat Problems?
- NoPhysicsGenius
- · Replies 1 ·
Deciphering Asteroid Stats to Divert an Impact on Earth
- winston2020
- · Replies 4 ·
How Much Water Must Be Supplied to Saturate Breathed Air and Its Caloric Impact?
- jason.frost
- · Replies 4 ·
Aeordynamics, drag, wind resistance - table with Cw values for objects
- Keba
- · Replies 2 ·
What is the speed of the paint can just before it hits the ground?
- pcx226
- · Replies 4 ·
Electric Charge and Coulomb's Law
- Fusilli_Jerry89
- · Replies 1 ·
Balancing a Hydraulic Lift with Two Pistons
- mujadeo
- · Replies 1 ·
What is the Physics behind a Car Flipping on a Roundabout?
- kudoushinichi88
- · Replies 25 ·
Space travel, mass increase, and length shorteneing
- Masest
- · Replies 3 ·
Why Does a Spring's Work Calculation Include a Factor of 1/2?
- Nick G
- · Replies 1 ·
Find the phasor representation of an equation
- VinnyCee
- · Replies 1 ·
Simple pendulum: does the period change in a horizontally accelerating frame
- mace2
- · Replies 14 ·
Young's Double Slit Experiment questions
- opticaltempest
- · Replies 4 ·
Plotting Phasor representations of functions
- VinnyCee
- · Replies 1 ·
Why Does a Magnet's North Pole Point Upwards in the Southern Hemisphere?
- gummydork
- · Replies 2 ·
Capacitor partially dipped in water
- rohith291991
- · Replies 4 ·
Solving Drag Racing Problem: Who Wins and By How Much Time?
- Clutch Cargo
- · Replies 2 ·
Conservation of energy of ball with drag
- simplemail1
- · Replies 1 ·
How Do Liters Translate to Meters in Flow Rates?
- mujadeo
- · Replies 2 ·
Ratio of net gravitational pull on moon
- Metalsonic75
- · Replies 2 ·
Calculating Mass to Support Car Weight on Hydraulic Lift
- mujadeo
- · Replies 3 ·
Mainly centripetal forces, please check (esp #4)
- missashley
- · Replies 6 ·
Calculating the Net Downward Force on a Cylindrical Water Tank on Mars
- MissKaylaPaige
- · Replies 2 ·
What Is the Frequency of Electron Oscillations Near a Charged Square?
- anap40
- · Replies 5 ·
Speed of an Electron in an Electric Field
- vachan
- · Replies 1 ·
Need help in electric field problem
- chinasome
- · Replies 1 ·
Circuit problem, prob really easy, please check
- foolISH
- · Replies 3 ·
Car Braking Distance: Calculating Distance to Avoid Collision
- alex81388
- · Replies 3 ·
Suspended hotel walkway (Young's modulus problem)
- Halfpixel
- · Replies 2 ·
How Do You Calculate the Force on a Charge in an Electric Field?
- rcmango
- · Replies 1 ·
Calculating Car Acceleration on a 1.2 Meter Hill in 2 Seconds
- steve986
- · Replies 4 ·
How Do Tension and Distance Affect Pulse Travel Time in a Stretched Cord?
- astro_kat
- · Replies 3 ·
How Do You Calculate Potential Energy for Climbing Mount Everest?
- Twilit_Truth
- · Replies 12 ·