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

A projectile exploding at the top of its trajectory

  • anban
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Simple harmonic motion-experiment

  • Smileyxx
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1

Electromagnetism theory questions

  • skg94
  • · Replies 2 ·
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2

Calculating Work, Kinetic Energy, and Speed for a Stalled Car

  • KnockKnock
  • · Replies 6 ·
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6

Different times Reference Frame Question

  • bethany555
  • · Replies 1 ·
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1

Finding acceleration vector with position vectors

  • sdadksajd
  • · Replies 5 ·
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5

Current loop rotating to give magnetic moment

  • nautola
  • · Replies 2 ·
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2

Which components of the force create Rotational motion?

  • Ilirs
  • · Replies 5 ·
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5

Formation Rate of Planetary Systems in the Universe

  • oldspice1212
  • · Replies 5 ·
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5

The moment of inertia of circular sector

  • ahmeeeeeeeeee
  • · Replies 1 ·
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1

Calculating the mass of a beam of non uniform density.

  • Craptola
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2

Moment of inertia and rotational KE for four point masses

  • LadyMario
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3

Centripical acceloration question

  • Rooch57
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1

Calculating new moment of inertia matrix with a new center of mass

  • tlonster
  • · Replies 2 ·
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2

Hello,I'm revising half-life for GCSE and have come across some

  • Molly1235
  • · Replies 3 ·
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3

Calculating Acceleration On A Ramp

  • cameronpalte
  • · Replies 3 ·
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3

How Do You Calculate a Jet's Average Velocity and Change in Velocity?

  • popmop2
  • · Replies 7 ·
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7

Center of Gravity in a Horizontal Cylinder with Water

  • chinocr3
  • · Replies 2 ·
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2

How Do Kinetic Energy and Forces Interact in a Fired Bullet?

  • joe426
  • · Replies 3 ·
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5
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7

Calculating Relative Time and Distance for Spaceship Catch-Up

  • bethany555
  • · Replies 5 ·
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5

Tangential Force Required to Slow Cylinder to a rest?

  • ObviousManiac
  • · Replies 11 ·
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11

Gravitational Force & Acceleration: What's the Difference?

  • ASidd
  • · Replies 1 ·
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1
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5

Finding bullet speed before and after passing through block 1

  • nchin
  • · Replies 3 ·
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3

How many of a note can we hear problem

  • AlaskanPow
  • · Replies 5 ·
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5

Normal force in man-on-ladder torque questions?

  • miaou5
  • · Replies 3 ·
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3

Acceleration Down Frictionless Inclined Ramp

  • cameronpalte
  • · Replies 2 ·
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2

What is the Acceleration and Tension in an Inclined Pulley System?

  • lames
  • · Replies 6 ·
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6

Can someone explain this equation?

  • lionely
  • · Replies 20 ·
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20

Calculating Frictional Force of a Sliding Mass

  • zedx
  • · Replies 4 ·
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4

Finding the eigen function for an infinite square well (quantum mechanics)

  • ElijahRockers
  • · Replies 1 ·
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1

Distribution of Charge on a Conducting shell

  • fornax
  • · Replies 2 ·
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2
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9

Bell paradox: simultaneous acceleration of two spaceships connected by a thread

  • jazzicaljamie
  • · Replies 5 ·
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5

Infinite Square Well (Quantum Mechanics)

  • ElijahRockers
  • · Replies 1 ·
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1
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3

Proton moving towards center of ring

  • Zarrey
  • · Replies 7 ·
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7
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7

Calculating EMF Using Kirchhoff's Rules

  • PirateFan308
  • · Replies 2 ·
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2

Motion in a Magnetic Field Radius

  • darwin59
  • · Replies 12 ·
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12

Bulk Modulus, Expansion Coeff. and compression of a liquid in a piston

  • klawlor419
  • · Replies 6 ·
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6

Solving for Accelleration with only Coeffifcient of Friction, and mass

  • Syndrix
  • · Replies 6 ·
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6

Calculating acceleration on an inclined plane (with friction)

  • Bobazoide
  • · Replies 4 ·
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4

Spring-Gun and Bullet Momentum and Energy

  • newtophysics2
  • · Replies 1 ·
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1

How Does Cannonball Trajectory Change with Height?

  • popmop2
  • · Replies 1 ·
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1

Speed at impact of 2 balls thrown from a building

  • KarlKarlJohn
  • · Replies 3 ·
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3

De Broglie wavelength from scattering of neutrons on crystal

  • kachilous
  • · Replies 1 ·
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1

Magnitude of acceleration in circular motion

  • mm13690
  • · Replies 4 ·
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4

What Forces Act on a Driven Pendulum?

  • cytochrome
  • · Replies 1 ·
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1

How Do You Prove Thermodynamic Equations for Van der Waals Gas?

  • Outrageous
  • · Replies 1 ·
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1

Newton's Rings and Gap Size - See Attachment

  • PeachBanana
  • · Replies 18 ·
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18

Wheel Rotated By Force on String.

  • Zebulinn
  • · Replies 4 ·
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4

Conservation of momentum continous mass flow freight cart.

  • BareFootKing
  • · Replies 4 ·
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4

Lever system - brake (counting of forces)

  • Bublifuk
  • · Replies 5 ·
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5

Finding the specific heat capacity of water using the gradient of a graph

  • sungholee
  • · Replies 5 ·
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5

Finding Height (KE vs. Work by Gravity)

  • johnhuntsman
  • · Replies 8 ·
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8

Calculating Stress Applied to Rubber Band: 1.0 MPa/ unit Strain

  • Nubcake
  • · Replies 1 ·
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1
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6

Two Masses on a Massed Pulley and a variation

  • Esragoria
  • · Replies 2 ·
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2

Calculating Time in Air for a Launched Ball

  • helpme2012
  • · Replies 10 ·
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10

Finding the specific latent heat of fusion of an ice cube

  • kiro484
  • · Replies 1 ·
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1
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3

Relative angular velocity concept help

  • svqweasdzxc
  • · Replies 4 ·
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4

How Do You Calculate Angular Acceleration for a Rotating Beam?

  • Bishop556
  • · Replies 3 ·
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3

Elastic Angular Momentum problem

  • Violagirl
  • · Replies 4 ·
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4

Finding fundamental frequency with length and successive frequencies

  • cyclingnerd
  • · Replies 2 ·
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2

Questions regarding volume after evaporating and lever equilibrium

  • Bublifuk
  • · Replies 2 ·
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2

Related rates Balloon question. Thanks

  • nukeman
  • · Replies 2 ·
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2

Maximum speed pulling a trailer up a 12-degree hill

  • doug1
  • · Replies 2 ·
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2

Calculate density of air from experiment.

  • spsa
  • · Replies 2 ·
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2

Differentiating Kirchoff's voltage law expression

  • And123
  • · Replies 3 ·
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3

Finding the magnitude of an object's angular momentum about the origin.

  • penguinnnnnx5
  • · Replies 6 ·
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6
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1

Pendulum Problem: Solving for Angular Velocity (ω)

  • vysero
  • · Replies 3 ·
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3

Work Done by Gravity on an Incline

  • johnhuntsman
  • · Replies 2 ·
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2

Rotational Kinetic Energy of disc brakes

  • johnhuntsman
  • · Replies 6 ·
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6

Finding Initial Speed of Car Skidding to a Stop on Wet Road

  • Packocrayons
  • · Replies 8 ·
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8

Natural Frequencies of oscillation

  • kreb11
  • · Replies 5 ·
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5

Solving Pe + Ke Problem for Block of Mass m and Height h

  • vysero
  • · Replies 5 ·
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5

Moments of Inertia for a Cylinder and Disk

  • johnhuntsman
  • · Replies 2 ·
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2

Blocks, Pulley, Ropes, and Tension

  • shake94
  • · Replies 10 ·
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10

Finding voltages across components in an RLC circuit

  • shorteddiode
  • · Replies 3 ·
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3

Finding slit seperation in two-slit experiment

  • clearsky
  • · Replies 1 ·
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1

Finding voltages/currents in a 3-phase circuit

  • fawk3s
  • · Replies 14 ·
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14

Determining Maximum Wavelength of Incident Radiation

  • PHYclass
  • · Replies 1 ·
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1

Peak electric field of a laser light.

  • Roflcopters
  • · Replies 1 ·
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1
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8
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5

Determining max horizontal force using friction coefficient

  • Monic
  • · Replies 4 ·
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4

Conservation of Momentum problem.

  • BareFootKing
  • · Replies 2 ·
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2

A flatbed truck and Static Friction and Crate breaking loose

  • shake94
  • · Replies 8 ·
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8

Why Does the Scale Read Higher at the Top of a Rollercoaster Loop?

  • doug1
  • · Replies 1 ·
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1

Calculating the Electric Field of a Long, Thin Wire Using Gauss' Law

  • howsockgothap
  • · Replies 1 ·
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1

Capacitor circuit simplification

  • delgeezee
  • · Replies 1 ·
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1

Calculating Force for an Exceptional Vertical Jump

  • Monic
  • · Replies 12 ·
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12

Manipulation of V=IR to produce a directly proportional graph.

  • Kier
  • · Replies 8 ·
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8

Slipping rolling cylinder friction

  • xzibition8612
  • · Replies 3 ·
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3