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

Finding the Special Initial Velocity in a kx Force System

  • treynolds147
  • · Replies 2 ·
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2

Finding postion, velocity and accelration as functions of time (SHM)

  • aglo6509
  • · Replies 9 ·
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9

Why isn't weight included in piston force equations?

  • eurekameh
  • · Replies 2 ·
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2

Electric Flux through Cylindrical Surface

  • dcco
  • · Replies 2 ·
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2

Where and when does the car catch the truck?

  • adoule
  • · Replies 7 ·
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7

Relativity Problem: Sweep Laser for v > c on Moon's Surface

  • VitaX
  • · Replies 1 ·
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1

Ideal Gases equilibrium question

  • Sky.Anthony
  • · Replies 2 ·
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2

The electric field due to a point charge

  • Jay9313
  • · Replies 14 ·
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14
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10

Propagation error in finding the perimeter and area, .

  • megkirch
  • · Replies 1 ·
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1

Polar Coordinate Tracking problem

  • AirForceOne
  • · Replies 7 ·
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7

Conservation of linear momentum and kinetic energy

  • knowNothing23
  • · Replies 7 ·
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7

Gravity at an arbitrary location near a disc

  • bumpkin
  • · Replies 4 ·
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4

Magnitude of the average acceleration

  • swan777
  • · Replies 2 ·
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2

How Do You Calculate the Power of a Water Pump?

  • furor celtica
  • · Replies 1 ·
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1

Spring theory, when can this happen? If ever

  • flyingpig
  • · Replies 5 ·
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5
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3

Position of a particle given an equation for acceleration

  • CaYn
  • · Replies 5 ·
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5

Rowboat crossing river with current: finding river speed

  • kiraahhh
  • · Replies 9 ·
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9

Calculating Electric Field of Insulating Sphere

  • Cornfused
  • · Replies 1 ·
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1

Collision Between Two Balls on Strings

  • Megzzy
  • · Replies 7 ·
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7

Calculating if a projectile from Mars will impact Earth.

  • arianabedi
  • · Replies 1 ·
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1

Why a spring-mass assembly is a SHM?

  • jaumzaum
  • · Replies 5 ·
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5

Calculate Max Wavelength of Sound Emitted by Loudspeakers

  • Peter G.
  • · Replies 2 ·
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2

Different initial vertical velocities on different planets

  • gbean
  • · Replies 1 ·
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1

Three Vectors - Resultant vector magnitude?

  • KendrickLamar
  • · Replies 5 ·
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5

Why Did My Projectile Motion Calculation Yield the Incorrect Height?

  • waters
  • · Replies 5 ·
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5

Solve Baseball Pitcher NR's Pitch Time to Home Plate

  • lalahelp
  • · Replies 1 ·
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1
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14

Influenza A virus count from saliva volume

  • lalahelp
  • · Replies 8 ·
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8

What is the Angular Frequency of Two Masses on a Spring?

  • americanforest
  • · Replies 4 ·
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4

What is the Correct Value of q/Q for 1/5 the Maximum Electrostatic Force?

  • eurekameh
  • · Replies 5 ·
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5

How Does Wavefront Orientation Change When Light Enters a Slower Medium?

  • Peter G.
  • · Replies 12 ·
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12

Electron traveling parallel to a Uniform Electric Field

  • format1998
  • · Replies 2 ·
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2

The influenza A virus is a spherical virus

  • lalahelp
  • · Replies 2 ·
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2
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3
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1

Electric force, tension, charge

  • ajmCane22
  • · Replies 2 ·
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2

Find the value of the z component of the total electric field

  • blueyellow
  • · Replies 7 ·
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7

Rolling and sliding sphere on flat surface

  • versatilehong
  • · Replies 1 ·
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1

Calculate the y component of the electric field at a generic point(x,y)

  • blueyellow
  • · Replies 2 ·
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2

Calculating Horizontal Force for 3 Boxes on Frictionless Surface

  • [KNIGHT]
  • · Replies 17 ·
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17

Solving Kinematics Questions with 5 Variables

  • MattJ81
  • · Replies 9 ·
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9

What is the Correct Way to Calculate Torque in a Uniform Boom System?

  • Jimmy84
  • · Replies 4 ·
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4

How Do You Find the Gravitational Field at a Corner of a Square?

  • Stuffy01
  • · Replies 8 ·
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8
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2

Find Kmax with given numerical quantities

  • xpaulinabearx
  • · Replies 4 ·
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4

Charge in Metals (Supposed to be easy)

  • alfredo24pr
  • · Replies 3 ·
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3

Phase space trajectory question

  • Grand
  • · Replies 1 ·
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1

Solving Hall-Petch Equation Homework

  • TyErd
  • · Replies 3 ·
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3

Calculate the total energy stored in the capacitor as a function of x

  • blueyellow
  • · Replies 11 ·
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11

Density and Uncertainty of a Block?

  • Wa1337
  • · Replies 1 ·
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1

Airplane flying in a crosswind problem

  • CaYn
  • · Replies 1 ·
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1

Magnitude/direction of point charges

  • ajmCane22
  • · Replies 1 ·
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1
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3

How do panpipes produce standing waves and does resonance occur?

  • changedname
  • · Replies 1 ·
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1

Converting km/hr to m/s^2: What is the Formula?

  • ATranPV
  • · Replies 7 ·
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7

Finding the magnitude of an electric field.

  • atn9200
  • · Replies 1 ·
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1

Point charges in an electromagnetic field

  • nmendoza37
  • · Replies 1 ·
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1

Why Does a Green Glass Plate Absorb Everything Except Green?

  • logearav
  • · Replies 2 ·
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2

What Are the Units of Constants A and B in the Equation x=At+Bt²?

  • tavo0116
  • · Replies 3 ·
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3

Designing an investigation into mobile phone radiation and brain tumors

  • chan teckming
  • · Replies 1 ·
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1

Centripetal Force through Turns

  • RiskX
  • · Replies 3 ·
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3
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3

Calculate the total impedance of the circuit

  • blueyellow
  • · Replies 9 ·
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9

Finding amount of graphite in a Pencil

  • Manty
  • · Replies 5 ·
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5

An amusement park ride question, picture included

  • wmrunner24
  • · Replies 11 ·
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11

Maxwell's equations using vectors D and H

  • blueyellow
  • · Replies 2 ·
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2

Questions about Young's Double-Slit experiment and light waves intereference

  • insertnamehere
  • · Replies 8 ·
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8

What Is the Minimum Launch Angle to Hit a Target 200ft Away?

  • AirForceOne
  • · Replies 8 ·
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8

Bouncing Ball Graph/Quadratic Formula

  • Megzzy
  • · Replies 5 ·
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5

Finding the displacement under a curve.

  • kimberley511
  • · Replies 3 ·
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3

A very weird capacitor association

  • jaumzaum
  • · Replies 1 ·
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1

Finding area of a gold leaf given mass and thickness

  • bosburn93
  • · Replies 3 ·
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3

Capacitor current in function of time

  • jaumzaum
  • · Replies 2 ·
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2

Projectile motion y-velocity and position using momentum principle

  • Clutch
  • · Replies 1 ·
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1

Electric field of a charged ring.

  • NeverSummer
  • · Replies 2 ·
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2

Finding force needed to neutralize a vector

  • devrimorgan
  • · Replies 1 ·
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1

Calculating Average Speed and Velocity for a Commuting Student

  • ashtaylor89
  • · Replies 2 ·
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2

Finding g on unknown planet given only total time and a random height

  • tswvyimlis
  • · Replies 3 ·
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3

Projectile motion of a fired gun

  • 1MileCrash
  • · Replies 13 ·
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13

Diff. Eq. related to SHM question

  • astropi
  • · Replies 6 ·
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6

What is the Apparent Weight in an Accelerating Elevator?

  • Zach Knight
  • · Replies 2 ·
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2

Finding the initial velocity, .

  • megkirch
  • · Replies 15 ·
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15

Solving for Time and Velocity with Only Three Variables

  • pianoguy1088
  • · Replies 2 ·
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2

Electrostatic force and magnitude problem

  • loganblacke
  • · Replies 3 ·
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3

Constant Velocity should = Acceleration of 0m/s^2 right?

  • litzkrieg
  • · Replies 4 ·
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4

Calculating Centripetal Force for Particle in Circular Motion

  • buttontugger
  • · Replies 1 ·
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1

How is tangential accleration zero in uniform circular motion?

  • pcsx22
  • · Replies 5 ·
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5

What forces keeps electrons from falling into nuclei?

  • treehouse
  • · Replies 14 ·
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14

How to Derive Lorentz Transformations?

  • Kyoma
  • · Replies 1 ·
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1

Magnitude and angles of a force

  • IHave
  • · Replies 3 ·
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3

Projectile with different landing heights

  • bionut
  • · Replies 7 ·
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7

Calculate Initial Speed Driving on a Crowded Freeway

  • Robb380
  • · Replies 7 ·
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7

Which diameter to use for stress in a stress-strain graph

  • TyErd
  • · Replies 7 ·
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7

Average Velocity of a Runner in 1500m Race

  • bionut
  • · Replies 12 ·
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12

Why Do Thermometers Show the Same Reading in Ethanol and Water?

  • BudsPro+
  • · Replies 5 ·
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5

Q Value for spontaneous fission and neutron induced fission

  • bmarson123
  • · Replies 1 ·
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1

Finding the Upward Velocity of a Long Jumper's Flight Phase

  • bionut
  • · Replies 8 ·
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8

Finding initial velocity from horizontal force and height

  • gheelengooi
  • · Replies 6 ·
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6