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.

Threads

Confusion over Rolling with Friction and Rolling Without Slipping

  • mhz
  • · Replies 16 ·
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16

Calculating Force-Distance Equations for Elastic Band Lab | Homework Help

  • kushsharma96
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1
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9

Assessing Consistency of Experimental Data: Comparing Two Values of k

  • FishareFriend
  • · Replies 1 ·
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1

Propagation of Errors - Error on Gradient

  • FishareFriend
  • · Replies 1 ·
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1

How Does Roller Coaster Physics Calculate Velocity?

  • crtsmnn
  • · Replies 1 ·
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1

Equilibrium of a system consisting of two bodies

  • hms.tech
  • · Replies 9 ·
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9
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13

Finding the differential equation for a oscillating system

  • JustinLiang
  • · Replies 3 ·
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3

Centre of Mass Displacement when Man Climbs Ladder w/ Counterweight

  • SK_JEE
  • · Replies 11 ·
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11

How to get angular velocity from force

  • maryam.tooty
  • · Replies 8 ·
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8

Statics-Two wires holding traffic light

  • lrp3395
  • · Replies 5 ·
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5

Why Does Temperature Remain Constant in Adiabatic Free Expansion?

  • Scintillation
  • · Replies 1 ·
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1

Properties that determine rise in temperature

  • rokr32
  • · Replies 2 ·
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2

Velocity of Electron ionized from Hydrogen

  • DRC12
  • · Replies 3 ·
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3

What is the de Broglie wavelength of a falling neutron in a vacuum?

  • DRC12
  • · Replies 4 ·
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4

How Does Pressure Distribute in a Fluid System?

  • sgstudent
  • · Replies 1 ·
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1

How Does the Temperature Affect Ice Melting in Iced Tea?

  • phunphysics2
  • · Replies 1 ·
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1

Calculating Work and Power: 50-N Force on a 2-kg Object

  • zumi78878
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1
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1
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1

A large mirror is hung from a nail. The supporting ?

  • rvbplayer123
  • · Replies 2 ·
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2

Physics paper, picture analysis

  • mikky05v
  • · Replies 8 ·
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8

Work Energy/Momentum Problem - Why is there a loss of energy?

  • theBEAST
  • · Replies 5 ·
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5

Find the Force applied to a rock by a slingshot

  • jesse james
  • · Replies 3 ·
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3

Conservation of Energy: Spring onstant

  • yomii
  • · Replies 2 ·
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2

Calculating Electron Speed and Energy in a Parallel-Plate Apparatus

  • Lolagoeslala
  • · Replies 1 ·
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1

Power Needed for 200kg Glider to Reach 25m/s in 75m

  • physics.mk
  • · Replies 2 ·
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2

How Do I determine when a pendulum ceases to be SHM

  • WoodyHD
  • · Replies 2 ·
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2

Projecting a block up to compress a spring

  • zumi78878
  • · Replies 2 ·
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2
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3
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2

Pauli exclusion principle and fermions, bosons and quarks

  • Ezequiel
  • · Replies 2 ·
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2
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2

Questions - solving pendulum period of rotation

  • Physics7
  • · Replies 12 ·
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12

What Load Weight is Needed to Suspend a Rope Over Water?

  • Jonnigs
  • · Replies 13 ·
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13

How Does the Velocity of a Cart Change When Water Hits It?

  • sapz
  • · Replies 7 ·
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7

How can Coulomb's Law be used to find the force between a charge and a surface?

  • shotikokobaxi
  • · Replies 3 ·
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3

Help Geometric Objects Thin lenses Problem

  • SugarBomb5
  • · Replies 2 ·
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2

Wanna make a project for Optics Fair, Need Hepl

  • mikeanndy
  • · Replies 1 ·
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1

Pendulum problem, need to be checked

  • trilerian
  • · Replies 9 ·
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9

AP PHYSICS ~ FLUIDS ~ A cube of osmium with a volume of

  • Silverbolt
  • · Replies 6 ·
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6

Work Energy Theorem and Uniform Disc Problem

  • theBEAST
  • · Replies 3 ·
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3

Calculating the Speed of a Block After a Bullet Collision

  • huynhtn2
  • · Replies 7 ·
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7

Electric field from uniform charge of finite length

  • Pyuruku
  • · Replies 1 ·
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1

Voltage change away from long line of uniform charge

  • Pyuruku
  • · Replies 5 ·
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5

How Do You Solve a Glancing Elastic Collision in Physics?

  • air4ce
  • · Replies 9 ·
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9

How to Calculate the Speed of a Block Released from a Spring

  • robertmatthew
  • · Replies 2 ·
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2
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4

How Long Until the Drink Reaches Room Temperature?

  • rabiakhan.91
  • · Replies 5 ·
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5

Velocity of Water in 5 cm Tube: Solve Equation

  • coldsteel
  • · Replies 2 ·
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2

How Is Work Calculated When Pushing a Box Up a Frictionless Ramp?

  • chinnie15
  • · Replies 6 ·
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6

Moment of Inertia/Torque about point O of the rod

  • Tygolfs94
  • · Replies 1 ·
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1

Find distance to which the center rises

  • omc1
  • · Replies 21 ·
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21

Find the gradient of 1/mod{r-r'}

  • Ashiataka
  • · Replies 8 ·
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8

Is Energy Always Conserved Like Momentum in Physics?

  • oldspice1212
  • · Replies 5 ·
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5

Pressure of piston in a cylinder containing gas, find heat (Q)

  • Violagirl
  • · Replies 2 ·
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2

How Are These Members in Compression and Tension

  • wahaj
  • · Replies 1 ·
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1

Please help Two friction and Power problems

  • infinitylord
  • · Replies 1 ·
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1

Second Moment of Inertia of a Rectangle

  • theBEAST
  • · Replies 1 ·
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1

Moment of inertia. Ball rolling experiment.

  • Dragonetti
  • · Replies 8 ·
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8

How Do Velocities Affect Collision and Proximity in Particle Dynamics?

  • Jastrabik
  • · Replies 5 ·
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5

Question about net electric field between two charges

  • spencerchad
  • · Replies 3 ·
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3

Calculating Kinetic and Potential Energy of a Dropped Ball | Energy Question

  • Questions999
  • · Replies 3 ·
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3

Calculating mass of an orbiting body

  • MegaDeth
  • · Replies 1 ·
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1

Energy uncertainty of an atom in an excited state

  • Ezequiel
  • · Replies 4 ·
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4
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8
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6

Conservation of Momentum - Collisions

  • doug1
  • · Replies 3 ·
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3

Explaining a Conceptual Physics Problem with Free Body Diagrams

  • cowmoo32
  • · Replies 7 ·
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7

What is the point in having a voltage follower?

  • theBEAST
  • · Replies 5 ·
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5

Rotational Mechanics Problem typical one

  • thunderhadron
  • · Replies 1 ·
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1

How Does Inductance Affect Energy Storage in AC Circuits?

  • slayhy
  • · Replies 3 ·
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3

Rotational Mechanics Problem: Solving for Height Using Energy Conservation

  • thunderhadron
  • · Replies 12 ·
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12

What is bandwidth in the context of RLC circuits?

  • theBEAST
  • · Replies 2 ·
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2
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1

Magnetic Moment, PLEASE ANSWER quick

  • letsgo
  • · Replies 1 ·
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1

Electric Potential and Energy on a Circular Arc?

  • Lolagoeslala
  • · Replies 6 ·
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6

Maximum spring compression problem

  • whdahl
  • · Replies 7 ·
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7

Is Work Always the Transfer of Energy?

  • curiously33
  • · Replies 3 ·
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3

Electrical Energy Electron Question

  • BlueCardBird
  • · Replies 6 ·
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6

Find Current Through Voltage Source Using Kirchoff's Law

  • mikehsiao789
  • · Replies 1 ·
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1

Finding the coefficient of static friction

  • rm_girl
  • · Replies 1 ·
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1

Calculations Lab: Heats of Fusion and Vaporization

  • pmalayavech
  • · Replies 2 ·
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2

Magnetic Field created from Current of Wire

  • letsgo
  • · Replies 1 ·
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1

Angular Momentum for Man and Bullet

  • GOPgabe
  • · Replies 1 ·
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1

Why does the acceleration of a pendulum depend on Rθ and not x?

  • aaaa202
  • · Replies 3 ·
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3

Amount of Plutonium used in Trinity

  • peripatein
  • · Replies 9 ·
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9

Speed of a Relativistic Particle?

  • bmb2009
  • · Replies 1 ·
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1

Is a vacuum balloon posible? Theoretical material?

  • NanoChrisK
  • · Replies 1 ·
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1

Calculating Orbital Radius from Period: Solving for r without Velocity

  • joel amos
  • · Replies 12 ·
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12

Momentum & Energy: A Firecracker Explodes

  • FredGirl13
  • · Replies 7 ·
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7

Maximizing Projectile Distance with Torsion Spring Catapult

  • Berwin
  • · Replies 5 ·
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5

When Calculating Torque, When to Use Cos and Sin?

  • SpringWater
  • · Replies 2 ·
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2

Is This Stopping Distance Formula Accurate for Physics Projects?

  • NewDarkAge
  • · Replies 2 ·
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2

First Year Physics Exam Prep: Challenging Problems Across Multiple Topics

  • Obi-2-Kenobi
  • · Replies 1 ·
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1

Hydromechanics - Flow from a tank with one outflow

  • Maag
  • · Replies 2 ·
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2

How Is the General Equation for Center of Mass Derived?

  • zacky_D
  • · Replies 6 ·
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6

How Do You Calculate Tension in a Pulley System with Two Masses?

  • tsurugi-ijin
  • · Replies 1 ·
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1

Compute the total power delivered to the circuit by two batteries

  • brittydagal
  • · Replies 5 ·
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5