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

Relativistic rod moving in two directions.

  • center o bass
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5

Moment of Inertia and kinetic energy question

  • kpengin
  • · Replies 1 ·
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1

What fraction of the distance do the block move?

  • JD<3
  • · Replies 3 ·
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3

Oscillation and Moment of inertia

  • tempneff
  • · Replies 3 ·
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3
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3

Finding Velocity and Distance of a raised mass

  • tjb5492
  • · Replies 18 ·
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18

Equivalent Resistance: To Include or Not to Include r5 and r6?

  • sniderman
  • · Replies 5 ·
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5

Proton moving in a magnetic field

  • erodger
  • · Replies 10 ·
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10

Waveform conversion of Analogue to Digital

  • Kroose65
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3
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1

Buoyancy calculating unknown density

  • masterburn
  • · Replies 4 ·
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4

Kinetic Energy and Angular Velocity of a Rolling Sphere on an Incline

  • ScienceGeek24
  • · Replies 26 ·
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26

Newton’s cannon ball and the moon

  • runner2392
  • · Replies 1 ·
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1

Calculating Time for Cannon Ball to Orbit Earth at 4000mi Radius

  • runner2392
  • · Replies 2 ·
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2

Calculate the Distance of lightning

  • Crookedsky
  • · Replies 1 ·
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1

Solving for Inches in an Angstrom

  • Drakkith
  • · Replies 8 ·
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8

Galileo's Acceleration Hypothesis

  • FMAgent
  • · Replies 13 ·
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13

Centripetal Acceleration with Tarzan

  • PeachBanana
  • · Replies 3 ·
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3

Time required to raise Temperature knowing heat transfer rate

  • Tamarisk
  • · Replies 1 ·
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1

Tension between blocks in a three-block system

  • Rey4312
  • · Replies 5 ·
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5

Intermediate Physics Lab Analysis, Uncertainty and Linear Regression

  • definition
  • · Replies 1 ·
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1

Sum of series n(n+1)(n+5) as a product of linear factors

  • MegaDeth
  • · Replies 1 ·
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1

Moon's orbital period if distance quadrupled

  • PeachBanana
  • · Replies 3 ·
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3

How Fast Can You Move 3.45 Meters on Tile with Different Footwear?

  • Megatron20
  • · Replies 3 ·
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3

Centripital Acceleration problem

  • Megatron20
  • · Replies 1 ·
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1

Oscillation damped oscillations ? how to calculate energy after t

  • masterburn
  • · Replies 10 ·
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10

Magnetic Flux and Induced Voltage Interesing question

  • stonecoldgen
  • · Replies 5 ·
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5

Work done by friction on a skier and resulting distance the skier travels

  • Sequence1123
  • · Replies 2 ·
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2

Revolutions of a tire and angle in radians thru warranty

  • chaotiiic
  • · Replies 3 ·
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3

Work required to move charged particle traveling in a circle

  • xlava
  • · Replies 2 ·
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2

Particle detectors and Flemming LH rule

  • jsmith613
  • · Replies 1 ·
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1

Water from fire hose hitting building at 20m distance

  • KillerNWA
  • · Replies 1 ·
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1

Finding wavelength from path difference in double-slit experiment

  • lolcheelol
  • · Replies 2 ·
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2

Calculating Voltage Drop and Current Through a Voltmeter

  • badd99
  • · Replies 8 ·
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8

Satellite changing distance as θ changes how?

  • LearninDaMath
  • · Replies 4 ·
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4

Gravity car/module/contraption thingy

  • bhavana1012
  • · Replies 3 ·
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3

Electric potential between two point charges

  • drawar
  • · Replies 3 ·
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3

How Does the Tension in a Cord Between Two Masses Compare to an Applied Force?

  • PeachBanana
  • · Replies 2 ·
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2

What is the potential difference between two points in a uniform electric field?

  • Genericcoder
  • · Replies 10 ·
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10

How do I properly convert from km/h to m/s?

  • menco
  • · Replies 3 ·
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3

Why Is the Magnetic Field Uniform in a Non-Coaxial Cylindrical Cavity?

  • c299792458
  • · Replies 3 ·
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3

Gaussian cylinder in the finite case

  • hatsoff
  • · Replies 1 ·
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1

Newton's Second Law Concerning Net Force

  • PeachBanana
  • · Replies 5 ·
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5

Cylindrical shell- electric potential problem

  • giacomh
  • · Replies 1 ·
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1

How do I find the spacing(d) of a grating in a diffraction grating experiment.

  • mutineer123
  • · Replies 1 ·
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1

Question on Physics problem of time and distance

  • Daniol10
  • · Replies 3 ·
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3

Time period of water sloshing in a rectangular container

  • crotical
  • · Replies 8 ·
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8

Does a magnetic field occupy space?

  • rabcdred
  • · Replies 2 ·
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2

Calculating friction and normal force for wooden block pulley lab

  • jillime
  • · Replies 1 ·
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1

What is the Velocity of the Larger Cube as the Smaller Cube Melts?

  • geniusno.198
  • · Replies 2 ·
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2

Isothermal Compression and Entropy Change

  • PShooter1337
  • · Replies 1 ·
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1

Finding velocity as a function of time

  • Mmarzex
  • · Replies 4 ·
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4

Kirchhoff's Rule and finding current with a system of equations

  • MeMoses
  • · Replies 4 ·
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4

Electric Potential of a hollow cylinder

  • forestmine
  • · Replies 9 ·
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9
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1

Can a vector be perpendicular to both skew lines?

  • knowLittle
  • · Replies 5 ·
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5

Time taken to reach 90% of terminal velocity

  • newageanubis
  • · Replies 2 ·
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2

Physics Current Problem (I1,I2,I3)

  • buddy72192
  • · Replies 2 ·
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2

Applications of Magnetic Fields

  • stonecoldgen
  • · Replies 3 ·
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3

Forces on symmetrical electrostatic charges

  • Roodles01
  • · Replies 1 ·
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1

What is a function that describes motion in a circular path?

  • LearninDaMath
  • · Replies 8 ·
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8

Solving trig problem for trajectory

  • PhysicsAdvice
  • · Replies 1 ·
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1

What is the pressure at 15 ft underwater?

  • cwalker8184
  • · Replies 1 ·
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1

Calculating Work on a Stretched Spring

  • shrutij
  • · Replies 2 ·
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2

What is the minimum work required to push a car up an incline with friction?

  • PeachBanana
  • · Replies 3 ·
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3

Thermodynamics - Calculate the initial temperature of the iron.

  • SAFiiNA
  • · Replies 5 ·
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5

Voltage and Current in RC circuits

  • stonecoldgen
  • · Replies 3 ·
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3

What is the current through Resistor on RC circuit

  • MeMoses
  • · Replies 3 ·
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3

A few quick conceptual questions about capacitators and dielectrics

  • soccerscholar
  • · Replies 3 ·
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3

Find the Voltage in This Circuit

  • Dawg91
  • · Replies 2 ·
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2

Work done by damping force in one oscillation period

  • Lengalicious
  • · Replies 15 ·
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15

Capacitors - Conservation of Charge vs Conservation of Energy

  • vineel
  • · Replies 3 ·
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3

The Energy of a Multiparticle System

  • aaj92
  • · Replies 7 ·
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7

Movement of Water - Increasing day length

  • Sekonda
  • · Replies 2 ·
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2

Solving Physics Problems: 2.00 kg Box Moving Right

  • Rookie8391
  • · Replies 1 ·
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1

Moment of inertia for a hollow ball calculation

  • AaronKnight
  • · Replies 3 ·
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3

A ball tied up at an angular plane: Forces and torque

  • Zhartek
  • · Replies 3 ·
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3

Coulomb's Law with 3 Point Charges

  • alever
  • · Replies 4 ·
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4

Work Done by Gravity on 265kg Load: 6.24x10^4 J

  • PeachBanana
  • · Replies 3 ·
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3

Calculating Energy Lost due to Friction

  • shrutij
  • · Replies 5 ·
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5

Electric dipole in uniform electric field

  • svbalasub
  • · Replies 7 ·
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7

Theories on Series and Parallel capacitors

  • john216
  • · Replies 1 ·
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1

Angular momentum when mass moves on a spinning sphere

  • Sekonda
  • · Replies 10 ·
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10

Change in Grav PE with the change in origin.

  • mrhingle
  • · Replies 3 ·
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3

Adding a wrench to a series circuit ?

  • mirandab17
  • · Replies 7 ·
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7

Capacitor Charge within a time period

  • Regis Tro
  • · Replies 1 ·
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1

Power required climbing steep vs. gentle slopes at same speed

  • PeachBanana
  • · Replies 6 ·
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6

Calculating angle with coefficient of static friction value

  • Fireant
  • · Replies 26 ·
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26

Solving Resistance of a Wire: 21V Across 32m, 18m?

  • john216
  • · Replies 3 ·
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3

What force opens a folding knife?

  • bklynrob
  • · Replies 3 ·
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3

Theories on Series and Parallel Resistors

  • john216
  • · Replies 1 ·
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1

Finding largest angle - mechanics

  • blackandyello
  • · Replies 2 ·
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2

Change of kinetic energy problem

  • marjuna
  • · Replies 12 ·
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12

Terminal Voltage Formula Doesn't Apply?

  • mirandab17
  • · Replies 15 ·
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15

Rocket Acceleration: Linear or Exponential?

  • galaticman
  • · Replies 1 ·
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1

What is the Relationship Between Velocity and Distance for a Sprinter?

  • mbkau00
  • · Replies 2 ·
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2

Finding voltage across R4 in circuit with two batteries and six resistors

  • kjlchem
  • · Replies 7 ·
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7

Finding Constants Using Continuity Conditions

  • glebovg
  • · Replies 5 ·
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5

How Do You Calculate the Mass of Object 2 After a Collision?

  • bencdavidson
  • · Replies 1 ·
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1

Dimensional analysis and frustum of a cone

  • selig
  • · Replies 4 ·
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4