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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How Much Current Flows in the Circular Loop When the Net Magnetic Field Is Zero?
- buckeyes
- · Replies 1 ·
Determining magnetic field around two parallel wires
- buckeyes
- · Replies 4 ·
Raindrops falling vertically at 35 km/h car going east, 65° angle on window
- portillj
- · Replies 9 ·
Finding the resistance when a 60W lamp is in series with a resistor and 120V source
- arod2812
- · Replies 2 ·
Force with kinetic energy question
- XxMuDvAyNexX
- · Replies 6 ·
Designing an Impact Force Testing Device
- Roscoe48176
- · Replies 5 ·
Finding the Acceleration of a Ping Pong Ball with No Drag Coefficient
- Monocles
- · Replies 3 ·
Calculating Work Done by a Spring: A Simple Solution
- XxMuDvAyNexX
- · Replies 2 ·
How Do You Calculate the Tension T2 Between Blocks in a Frictional System?
- BeatTheRuckus
- · Replies 1 ·
Centripetal Force: Calculate Tension for 35kg Boy
- bfr
- · Replies 2 ·
Wall of Death in amusement park - Find number of revolutions
- BeatTheRuckus
- · Replies 3 ·
Why Does the Brightness of Particles in Water Change with Viewing Angle?
- An Architect
- · Replies 4 ·
Calculating the Radius of a Rotating Coil in a Magnetic Field
- buckeyes
- · Replies 2 ·
Solve Friction Problem: Student in Elevator, Mass 8kg, Width 3.2m
- cooltee13
- · Replies 5 ·
How Is Kinetic Energy Calculated for a Moving Charge?
- ttiger2k7
- · Replies 1 ·
Calculating the Electric Field of a Charged Rod: Is There an Easier Way?
- tony873004
- · Replies 4 ·
How Fast and Far Does a Projectile Travel When Released from a Diving Plane?
- iamkristing
- · Replies 5 ·
Uniform circular motion of satellite
- iamkristing
- · Replies 3 ·
Finding acceleration direction and velocity components from three forces
- zcabral
- · Replies 6 ·
Solve for Ratio of Steel Ax and Aluminum Piston Weights - Buoyancy Problem
- cat_eyes
- · Replies 13 ·
Elementry Electrostatics question
- 838
- · Replies 5 ·
Solve Physics Question: Rock Dropped Down Mine Shaft
- paradox169
- · Replies 3 ·
Calculating Velocity After 2s of Force on 10kg Mass
- watsup91749
- · Replies 6 ·
Algorithm for 3D tennis ball parabola in game
- Gigs_
- · Replies 4 ·
Net force zero on particle system: acceleration, momentum, and velocity
- pink_ele
- · Replies 1 ·
How Does Kinetic Friction Impact Acceleration on an Inclined Plane?
- LM06
- · Replies 1 ·
Finding angle from positive x-axis when given 59.1° in second quadrant
- chocolatelover
- · Replies 2 ·
A Few RC Circuits/Electricity Problems
- cse63146
- · Replies 5 ·
Specific heat capacity (Calorimetry)
- Lunar Guy
- · Replies 5 ·
Solving Motion Problem #2: Angle & Speed Relative to Ground
- shenwei1988
- · Replies 3 ·
Fluids in motion (Bernoulli's equation)
- Lunar Guy
- · Replies 1 ·
Collision of 2 balls of different masses traveling opposite direction
- _Mayday_
- · Replies 7 ·
Question regarding energy, BTU
- Speedy
- · Replies 1 ·
Finding equivalent resistance between points a and b in circuit
- Skynt
- · Replies 4 ·
Destructive interfrence of waves
- yiuscott
- · Replies 5 ·
Gravitational potential energy
- brendan3eb
- · Replies 1 ·
How Do You Calculate Transverse Speed and Acceleration for a Wave on a String?
- complexc25
- · Replies 1 ·
K-40 to Ar-40 ratio and dating a moon rock sample
- rock.freak667
- · Replies 3 ·
Positron movement in a coil-induced magnetic field
- wgas
- · Replies 4 ·
Deriving Electric Field Energy Density
- foxjwill
- · Replies 1 ·
How is internal resistance of a cell related to temperature
- Mr Virtual
- · Replies 2 ·
Why is it difficult to start a car in winter?
- Mr Virtual
- · Replies 4 ·
Effective spring constant for 2 kg mass between two 20 N/m springs
- catkin
- · Replies 14 ·
Angular acceleration, displacement
- glasshut137
- · Replies 14 ·
Graphing To Find Linear Mass Density (Waves)
- BayernBlues
- · Replies 1 ·
How does the mass of the string affect rotating object problems?
- bjgawp
- · Replies 1 ·
Solve a Race Problem: Tortoise and Hare Finish Time and Length
- princesspriya
- · Replies 1 ·
Calculating the Distance Dropped by a Baseball Thrown at 116 km/h
- shenwei1988
- · Replies 1 ·
Incline max angle physics problem
- JonathanSnow
- · Replies 6 ·
Surface charge density on an irregular conductor with varying electric field
- lunarskull
- · Replies 2 ·
Double Atwood Machine and tension
- rwx1606
- · Replies 1 ·
Minimize time on frictionless track with ramp and horizontal section
- NAkid
- · Replies 7 ·
When Will Two Planes Pass Each Other on a Transcontinental Flight?
- torresmido
- · Replies 3 ·
Coordinate System Homework: Find Distance and Polar Coords
- chocolatelover
- · Replies 4 ·
How Does Refractive Index Relate to Trigonometric Identities?
- Mattofix
- · Replies 8 ·
Grams and volume of steam needed to raise the temperature of expresso
- merbear
- · Replies 1 ·
Finding current in 10Ω resistor with charged capacitors
- RyanCouillard
- · Replies 1 ·
Solving Electric Field Zero: 0.20m Charges
- jalen
- · Replies 2 ·
Buoyant Force Math Problems: Calculating Densities of Metal and Unknown Liquid
- WhiteTiger09
- · Replies 4 ·
Solving Earth to Moon Trip Time Questions
- barnflakes
- · Replies 9 ·
Converting Polar Coordinates to Cartesian Coordinates
- chocolatelover
- · Replies 2 ·
Solving an Infinite Plane of Uniform Charge Density Problem in Physics
- lakeesha1984
- · Replies 1 ·
How Should a Plane Adjust Its Course in Crosswinds to Fly Due North?
- greyradio
- · Replies 1 ·
Calculating Electric Field from a Charged Filament
- tony873004
- · Replies 8 ·
What is the acceleration of block B?
- TS656577
- · Replies 5 ·
Calculating Contact Forces between Blocks
- sailsinthesun
- · Replies 3 ·
Calculating Distance on an Inclined Plane with Friction
- NAkid
- · Replies 9 ·
How Much Work Is Needed to Pull a Hanging Chain Onto a Table?
- NAkid
- · Replies 15 ·
Inelastic collision problem - What is the velocity?
- watsup91749
- · Replies 2 ·
Calculating Weight of Truck on Ferry Boat
- Lunar Guy
- · Replies 3 ·
Solving Work and Energy Problems on a Slope
- NAkid
- · Replies 10 ·
Derivative of the kinetic energy
- watsup91749
- · Replies 4 ·
Conservation of energy of a block of ice
- Lunar Guy
- · Replies 5 ·
Distance to reach terminal velocity experiment
- tomtristan
- · Replies 7 ·
Sound Intensity and Human threshold for hearing
- mssweeteypie
- · Replies 1 ·
Lightning bolt electrons problem
- wyclefchick
- · Replies 1 ·
Calculating Electric Field Strength between Charges
- jalen
- · Replies 3 ·
Car stopping distance on an 18.9° slope with locked wheels
- NAkid
- · Replies 1 ·
Time dilation and length contraction: UFO traveling 384000 km at 0.8c
- magicuniverse
- · Replies 21 ·
How Do You Calculate the Tension and Elastic Properties of Suspended Wires?
- BadlyAddicted
- · Replies 1 ·
How Is Electric Force Calculated on a Charged Plastic Stirrer Near a Wire?
- 743344
- · Replies 10 ·
Net Electric Flux & Enclosed Objects
- Gear300
- · Replies 2 ·
Electric Potential Ranking Task
- electricman
- · Replies 6 ·
Find the velocity of a block + 2 cylinders acted on by a force for 2meteres
- deanr
- · Replies 1 ·
How does a pendulum clock keep time and why does it need to be wound up?
- smashingtime
- · Replies 4 ·
Newton's First Law straight line speed
- bonbon49
- · Replies 5 ·
How Do You Calculate Time and Acceleration in Physics Problems?
- Tentothe
- · Replies 1 ·
What Is the Minimum Force Betty Must Apply in a Two-Dimensional Tug-of-War?
- AnkhUNC
- · Replies 5 ·
Why use a constant current source for parallel RC circuits and voltage source for series
- Medium176
- · Replies 9 ·
Electric Potential vs Potential Energy
- cemar.
- · Replies 3 ·
Egg and rock meeting in the air above water
- guvava
- · Replies 5 ·
Coulomb's Law question - find initial charge
- kheila
- · Replies 2 ·
Projectile Motion archers question
- ela88leo
- · Replies 2 ·
Antiaircraft gun force physics problem
- zcabral
- · Replies 2 ·
Ball and gravitational force question
- Melchior25
- · Replies 3 ·
Solve for Speedboat Direction: Coast Guard Cutter Intercepts Unidentified Ship
- zcabral
- · Replies 1 ·
How Do You Calculate Tension in Angled Cables?
- jonyamikun
- · Replies 1 ·
Adding three force vectors to find the resultant
- suki86
- · Replies 12 ·
Uniformly Accelerated Linear Motion
- Tentothe
- · Replies 3 ·