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

Pen P of the flatbed plotter traces the curve - Path Coordinates

  • Alexanddros81
  • · Replies 3 ·
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3

Should there be a constant in the RHS of (5.8)?

  • Pushoam
  • · Replies 4 ·
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4

Thermodynamics Ice Melting Question

  • ConnorM
  • · Replies 4 ·
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4

Reproducing dirac-delta function in electric dipole field

  • ELB27
  • · Replies 2 ·
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2

What is the width of a spectral line?

  • Pushoam
  • · Replies 1 ·
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1

Calculation of equivalent resistance

  • Abhijit
  • · Replies 4 ·
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4

Force between two lines of charge?

  • Eclair_de_XII
  • · Replies 9 ·
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9

Hydrualic pressure moving plug in pipe

  • BobJones1234
  • · Replies 10 ·
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10

The motion of a particle in the central force

  • GeoStudy
  • · Replies 1 ·
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1

Calculate equivalent resistance

  • Vibhor
  • · Replies 5 ·
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5

Calculating Reaction Forces on Cylinders Resting on an L Profile

  • Epoch
  • · Replies 22 ·
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22

How do you deduce acceleration?

  • Joo Sung
  • · Replies 5 ·
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5

Calculate the force on the tight side of a belt drive

  • Girn261
  • · Replies 11 ·
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11

Friction Force with Incline and Pulley

  • Alex126
  • · Replies 9 ·
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9

Shooting a bullet at an angle from a given height

  • ChessEnthusiast
  • · Replies 1 ·
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1

Archived Coaxial Cable With Potential Difference between conductors

  • Garfungle
  • · Replies 1 ·
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1

Finding avg. energy of a canonical system

  • Pushoam
  • · Replies 2 ·
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2

Particle motion - Path Coordinates

  • Alexanddros81
  • · Replies 6 ·
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6

Maximum deflection of accelerating trolley pendulum: work energy vs equilibrium

  • Sourav Suresh
  • · Replies 7 ·
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7

Solving for I2 in a Circuit: What Am I Doing Wrong?

  • radji
  • · Replies 4 ·
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4

Net Vertical Force on a Slipping Chain on a Table

  • Jahnavi
  • · Replies 12 ·
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12

How do i account for the height for projectile motion

  • rashad764
  • · Replies 7 ·
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7

How Long Does a Sprinter Accelerate Before Reaching Top Speed?

  • Cliborpimus
  • · Replies 1 ·
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1

Calculating Error Bars for Height and Time in Ball Drop Experiment

  • aron silvester
  • · Replies 3 ·
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3

Object moving on a spiral figure

  • Smouk
  • · Replies 1 ·
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1

Calculate factor of safely on a steel bar

  • Girn261
  • · Replies 1 ·
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1

Induced voltage in triangular loop near oscillating current wire

  • horsewnoname
  • · Replies 1 ·
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1

Magnitude of the induced magnetic field in a circuit

  • L_landau
  • · Replies 5 ·
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5

How do you graph vectors on a graph paper using their magnitude and direction?

  • stolencookie
  • · Replies 5 ·
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5

Electric field strength -- calculating distance from charge

  • Iron_Man_123
  • · Replies 2 ·
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2

A thin disk rolls without slipping

  • Tomtam
  • · Replies 4 ·
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4

How an Electric Field is affected by an Insulator

  • Iftekhar Uddin
  • · Replies 2 ·
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2

Work done pumping air into a bottle

  • Funky_Sp
  • · Replies 17 ·
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17

Electric Field of Line Charge with Displaced Origin

  • Chansu
  • · Replies 1 ·
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1

Magnitude of electric field at point A using components

  • Rijad Hadzic
  • · Replies 4 ·
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4

Multifluid manometer (pressure problem)

  • yecko
  • · Replies 1 ·
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1

How do I find Vector C in a non-right triangle using the Law of Cosines?

  • stolencookie
  • · Replies 2 ·
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2

Three momentum and bowling pin collision problems

  • Matt Poirier
  • · Replies 11 ·
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11

Determining Relationship Between Two Variables

  • Stormblessed
  • · Replies 9 ·
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9

Understanding Simple Harmonic Motion: Equations and Solution Attempt

  • Cici2017
  • · Replies 3 ·
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3

Focal length of combined lenses and mirror system

  • Tanishq Nandan
  • · Replies 28 ·
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28

Rounding to the correct decimal place

  • aron silvester
  • · Replies 2 ·
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2

Why is kinetic energy in SHM proportional to displacement squared?

  • Cici2017
  • · Replies 8 ·
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8
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1

Dice throw, avg.,standard deviation

  • Pushoam
  • · Replies 1 ·
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1

Avg. of sum of independent variables

  • Pushoam
  • · Replies 2 ·
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2

Coefficient of friction between stick and circle

  • Demetrius
  • · Replies 16 ·
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16

How Fast Are Water Balloons Traveling When They Pass a Window?

  • Wanting to Learn
  • · Replies 8 ·
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8

Volume Charge Density in Spherical and Cylindrical Coordinat

  • RJLiberator
  • · Replies 6 ·
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6

Electric Field due to a Semicircle of charge

  • physics24sam
  • · Replies 18 ·
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18

Charge density and charge on a conductor

  • doggydan42
  • · Replies 15 ·
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15

Can E=V/d be used to calculate the electric field of a dipole?

  • LostThoughts
  • · Replies 1 ·
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1

Calculating Vector Components with given Magnitude and Direction

  • rashad764
  • · Replies 11 ·
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11

Determining terminal voltage, field current,etc.

  • Vladi
  • · Replies 4 ·
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4

Acceleration of Planet/Sun System

  • aurora7790
  • · Replies 3 ·
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3

Why is the wave point moving in direction B instead of D?

  • Cici2017
  • · Replies 5 ·
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5

Millikan's Oil-Drop Experiment: Is my reasoning correct?

  • Mason Smith
  • · Replies 1 ·
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1

Introduction to thermodynamics question

  • yecko
  • · Replies 1 ·
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1

Intro Thermodynamics equilibrium problem

  • tri5
  • · Replies 4 ·
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4
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23

Maximum rate at which energy is stored in a LR circuit

  • Serotonin
  • · Replies 9 ·
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9

Complex Solutions to Oscillations

  • WWCY
  • · Replies 3 ·
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3

How do I calculate kinetic energy in oscillation problems?

  • Cici2017
  • · Replies 12 ·
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12

Problem concerning about thermal physics

  • Richardbryant
  • · Replies 3 ·
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3

How many significant figures in the average area?

  • Anshul23
  • · Replies 4 ·
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4

Calculating Time for Car to Catch Up to Truck

  • Wanting to Learn
  • · Replies 2 ·
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2

How much water evaporates per minute from a copper pot on a stove?

  • Pao44445
  • · Replies 4 ·
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4

A box over an inclined plane with a mass, no friction

  • SqueeSpleen
  • · Replies 1 ·
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1

Ball thrown vertically, only the time is given

  • Wanting to Learn
  • · Replies 7 ·
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7

Methods in Calculating with Vector Components

  • wjdgone
  • · Replies 5 ·
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5

Magnetic Flux Questions from Japanese University Exam Papers

  • BeginnerPhysicsMan
  • · Replies 7 ·
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7

Photoelectric Effect, Light Intensity and Stopping Voltage

  • Zibi04
  • · Replies 1 ·
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1

How Long Does It Take a Car to Overtake a Truck?

  • HRubss
  • · Replies 25 ·
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25

No. of choosing 4 atoms out of 10 atoms

  • Pushoam
  • · Replies 8 ·
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8

Calculating speed in circular motion

  • Anon2459
  • · Replies 1 ·
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1

Attempt to jump across a river on a motorcycle

  • Chan M
  • · Replies 2 ·
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2

Calculating Tension in Circular Motion

  • Anon2459
  • · Replies 1 ·
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1

Calculate speed of block at the end of the ramp

  • Anon2459
  • · Replies 10 ·
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10
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2

Pressure at the center of an accelerating sphere

  • Nathan B
  • · Replies 3 ·
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3

Archived Fluid pressure in a tank - manometer

  • Happy4ever
  • · Replies 3 ·
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3

Electric Field of a cube with a rod

  • doggydan42
  • · Replies 5 ·
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5

Radioactive decay of Uranium 238

  • Portuga
  • · Replies 7 ·
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7
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2

Galilean Relativity (Invariance) Problem

  • jlmccart03
  • · Replies 7 ·
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7

Simple Electric field question -- Charged sphere

  • Rijad Hadzic
  • · Replies 9 ·
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9

Atwood machine with three masses m, 2m, and 3m

  • FScheuer
  • · Replies 10 ·
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10

Balancing Lever Problem: How Many Rings on Each Side?

  • Marija
  • · Replies 1 ·
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1

How Long Does It Take for a Launched Ball to Hit the Wall?

  • Huski
  • · Replies 4 ·
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4

Significant Digits for Uncertainty Values

  • AllisonW4
  • · Replies 4 ·
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4

Finding the magnetic flux from a 3 Dimensional Shape

  • Vladi
  • · Replies 10 ·
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10

What Forces Act on a Pulley System with Two Masses?

  • Jahnavi
  • · Replies 65 ·
3
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65

Significant figures in a results table

  • Alexander350
  • · Replies 3 ·
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3

Finding Proportional Relationships using Log-Log Graphs

  • Stormblessed
  • · Replies 3 ·
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3
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8

Calculate the angular acceleration of a hand - no time given

  • BosonF
  • · Replies 10 ·
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10

Proton approaching infinitely long charged line

  • Eclair_de_XII
  • · Replies 4 ·
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4

How fast should the Earth spin for centripital accel. to equal gravity?

  • iamnotsmart
  • · Replies 8 ·
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8

Differentiating velocity in a pendulum problem

  • Bestfrog
  • · Replies 3 ·
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3

How Do You Calculate Acceleration from a Velocity-Time Graph?

  • rashad764
  • · Replies 10 ·
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10