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

Current loop rotating to give magnetic moment

  • nautola
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2

Which components of the force create Rotational motion?

  • Ilirs
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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
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1

Calculating the mass of a beam of non uniform density.

  • Craptola
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2

4 Point masses form a body - Inertia & Rotational Kinetics

  • 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
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2

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

  • Molly1235
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3

Calculating Acceleration On A Ramp

  • cameronpalte
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3

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

  • popmop2
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7
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4

Center of Gravity in a Horizontal Cylinder with Water

  • chinocr3
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2

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

  • joe426
  • · Replies 3 ·
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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

Conservation of momentum problem. Very confused Speed of Bullet?

  • 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

Solving Inclined Pully Table: Acceleration & Tension

  • lames
  • · Replies 9 ·
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9

Bell Paradox Questions - Diagram help

  • 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

Question about relative angular velocity

  • 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

Verify Solutions for Dynamics Problems Homework

  • 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

RLC Circuit Homework: Finding Voltage Sources and Solutions

  • 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

Transformer, flux linkage and emf short question

  • thoradicus
  • · Replies 1 ·
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1

Pulley system to lift container. How much force?

  • llisle39
  • · Replies 1 ·
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1

Calculate force acting on rod to holding it stable.

  • sareba
  • · Replies 5 ·
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5

Using integration to find depth

  • jackscholar
  • · Replies 6 ·
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6
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2

Focal Length of a Half Ball Lens

  • HIB
  • · Replies 4 ·
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4