Introductory Physics Homework Help Forum

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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What is the coefficient of friction?

  • g65hy
  • · Replies 10 ·
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What is the coefficient of friction?

  • alisong
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Two masses, frictionless pulley

  • cassienoelle
  • · Replies 4 ·
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Current from a windmill generator with 2.0 m blades

  • Hafid Iqbal
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Solve KE, PE and Work for Block Sliding Down Friction-Less Incline

  • zzoo4
  • · Replies 17 ·
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17

How much heat per second does a runner gain just from radiation?

  • JustinLiang
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What happens to a car making a circular turn when it hits ice?

  • physicsgurl12
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Energy absorption rate in circuit with unknown device box

  • iiiiaann
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Charge Distrubution evenly on Arc (Radius R)

  • plat911
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Heat absorbed by silver spoon and heat removed from steam

  • eddiestylin
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How Does a Calculator-Based Ranger (CBR) Detect Motion?

  • p.ella
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Understanding Buoyancy: Calculating Mass of a Ship in Different Fluids

  • knowNothing23
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Lifting a crate magnitude of forces.

  • physicsgurl12
  • · Replies 10 ·
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Net Force on a Stalled Car Being Pushed Up a Hill?

  • physicsgurl12
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New velocity between two spacecraft moving in opposing directions

  • Capncanada
  • · Replies 7 ·
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Electric Field Between two Charges Equals 0

  • Hypnos_16
  • · Replies 13 ·
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What Forces Affect Motion in Block Dynamics?

  • superhero241
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Why is Tension Greater Than ma in a Horizontal Pull Scenario?

  • physicsgurl12
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How Does Newton's Third Law Apply in Tug of War and Spacecraft Motion?

  • domtar
  • · Replies 4 ·
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4

How Does Force Affect Object Speed and Position?

  • matt@USA
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3

How Does Height Affect Weightlessness on a Frictionless Roller Coaster?

  • DrunkApple
  • · Replies 3 ·
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Jumping out a plane force of wind resistance

  • physicsgurl12
  • · Replies 18 ·
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18

How is work calculated with a variable force?

  • matt@USA
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When an elevator moves upwards with an acceleration

  • Crusaderking1
  • · Replies 4 ·
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Uniform ladder against wall held by rope at angle theta

  • xduckksx
  • · Replies 10 ·
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Relative velocity of a canoe problem

  • LadyW
  • · Replies 1 ·
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AP Physics CH 5: Centripetal Motion

  • mitchmcsscm94
  • · Replies 3 ·
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Atwood's Machine - One mass and one force

  • whoareyou
  • · Replies 10 ·
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Tension between two cables, not sure what to do.

  • USN2ENG
  • · Replies 2 ·
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Solving the Problem: Calculating Distance After the Start

  • rayj098
  • · Replies 3 ·
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What is the Relationship Between Net Force, Speed, and Time for a Moving Object?

  • physicsgurl12
  • · Replies 16 ·
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16

Copper cladding thickness formula for zinc penny

  • knowNothing23
  • · Replies 1 ·
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Ionization Energy in Electron Volts

  • mhrokosz
  • · Replies 4 ·
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4

Electric Field of Single-Battery Circuit with Thin/Thick Wires

  • DeadFishFactory
  • · Replies 2 ·
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Work Done by Spring at A: Calculating from Position 2 to Position 3

  • maniac90
  • · Replies 5 ·
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5

Maximum tangential acceleration on a banked curved path

  • charlesc56
  • · Replies 1 ·
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Finding the resultant of two vector of an oblique triangle

  • ElizabethC7
  • · Replies 3 ·
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3

Find gravitational potential energy if at point

  • jono240
  • · Replies 4 ·
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Antireflection coating with MgF2 on glass lens

  • superspartan9
  • · Replies 7 ·
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7

Electrical Circuit - Power dissipation

  • rambo5330
  • · Replies 4 ·
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4

Calculating Volume and Weight of Water in a Cone Jar: Fluids (Pressure)

  • knowNothing23
  • · Replies 1 ·
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Thermodynamic cycle related problem

  • ibysaiyan
  • · Replies 6 ·
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Finding Instantaneous Acceleration in a Velocity-Time Graph

  • welai
  • · Replies 2 ·
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Diffraction grating problem involving two wavelengths.

  • bfrank
  • · Replies 4 ·
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Finding the vertical component of velocity

  • shyguy79
  • · Replies 4 ·
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Two block-spring system - finding max extension in the spring

  • Ashu2912
  • · Replies 7 ·
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Box and friction distance problem?

  • bman123
  • · Replies 1 ·
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On a P-V diagram, if the pressure stays constant and the volume

  • P-Jay1
  • · Replies 1 ·
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Friction and Acceleration problem?

  • bman123
  • · Replies 1 ·
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Moment of Inertia of a rectangle?

  • GreenPrint
  • · Replies 9 ·
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How Do You Solve Physics Problem MASS 7.1?

  • Hiche
  • · Replies 3 ·
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Using Dimensional Analysis to Guess a Formula

  • LBB II
  • · Replies 13 ·
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How to transform acceleration from m/s2 to km/h2 and reversed?

  • An00b
  • · Replies 4 ·
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Particle of certain mass moving in an xy plane

  • eximius
  • · Replies 5 ·
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A Few Questions on Tension, and Some Work

  • Nickg140143
  • · Replies 5 ·
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Mass on wedge on incline problem

  • uhohitzluke
  • · Replies 1 ·
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2kg box sliding down 10m ramp then across flat ground

  • berbek16
  • · Replies 5 ·
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Circular motion: velocity, acceleration, and force vectors

  • ibysaiyan
  • · Replies 7 ·
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The Equivalent Resistance Calculation

  • roam
  • · Replies 6 ·
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How to Graph Motion for Two People with Varied Speeds and Stops?

  • g65hy
  • · Replies 9 ·
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Noninertial Frames of Reference Question

  • scintillate10
  • · Replies 1 ·
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A hot air balloon has just lifted off and is rising at the constant

  • nc1617
  • · Replies 1 ·
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How Do Radius and Orbit Affect Satellite Dynamics?

  • Plutonium88
  • · Replies 1 ·
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How much does a body weight in free fall?

  • patowlmc
  • · Replies 3 ·
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Pulley system: 2 pulleys and 3 mass

  • alaix
  • · Replies 1 ·
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How Do You Calculate Vector Components in a Radar Tracking Problem?

  • Thunderer
  • · Replies 4 ·
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4

Why Is My Solution for Rotational Motion Incorrect?

  • GreenPrint
  • · Replies 3 ·
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How Does Friction Impact Work Calculation in Physics?

  • KendrickLamar
  • · Replies 1 ·
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Where does the torque come from when two spinning disks collide?

  • tummychow
  • · Replies 3 ·
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3

Diver jumping from board: finding maximum height above water

  • nando94
  • · Replies 2 ·
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Dielectric-Dielectric Boundary Conditions

  • jegues
  • · Replies 2 ·
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Finding accleration and tension as an elevator moves upwards/downwards.

  • Crusaderking1
  • · Replies 3 ·
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Kinetic and potetnial energy in a circle?

  • TheBowl3r
  • · Replies 1 ·
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1

Angular Acceleration of a Pinned Stick

  • hughes
  • · Replies 1 ·
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1

How Do You Relate Momentum to Kinetic Energy in Physics?

  • Joyci116
  • · Replies 7 ·
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7
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5

Physics recoil/friction problem?

  • mindadiann
  • · Replies 5 ·
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5

Calculate Coefficient of Friction for 41N Bookcase on Ground

  • Omnomnomnom
  • · Replies 5 ·
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5

Finding magnitude and direction of momentum vector

  • Joyci116
  • · Replies 2 ·
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2

Frictional force on Inclined Plane

  • aokidopi
  • · Replies 12 ·
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12

Why does net force include friction differently than net torque?

  • GreenPrint
  • · Replies 6 ·
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6

Why Doesn't a Pendulum Hit My Face When Released?

  • wahllln
  • · Replies 1 ·
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The electric field of infinite line charges and infinite sheet of charges

  • dada130500015
  • · Replies 3 ·
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How Do I Solve These AP Physics Problems?

  • tdub96
  • · Replies 9 ·
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Finding Electric Flux and Electric Fields

  • Jason355
  • · Replies 4 ·
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Lorentz Factor / Spacecraft to Star

  • ZedCar
  • · Replies 6 ·
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Having trouble starting gravity problem.

  • Crusaderking1
  • · Replies 6 ·
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6
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Electric flux charge through a cube

  • ZEli
  • · Replies 4 ·
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Finding current in suspended parallel wire with magnetic force

  • j.m.g.
  • · Replies 21 ·
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Electrostatics, sphere question.

  • vkash
  • · Replies 2 ·
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Solve for charge(q), given radius, electric field, and density

  • Lemon-Sam
  • · Replies 2 ·
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Solving the Puzzle: Calculating Acceleration of Blocks

  • anigeo
  • · Replies 1 ·
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How Does Special Relativity Explain the Age Difference Between Twins?

  • godtripp
  • · Replies 3 ·
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How High Does the Elevator Meet the Coin in Torronto Tower?

  • khurram usman
  • · Replies 1 ·
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Forces on two masses hanging vertically from strings

  • shawli
  • · Replies 6 ·
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Finding mass on inclined plane from tension and normal force

  • iPaul
  • · Replies 5 ·
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