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

Deriving the Deflection Equation for a Prism

  • Axis001
  • · Replies 13 ·
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13

How Do You Correctly Solve Vector Addition Problems?

  • APphysicsfail
  • · Replies 1 ·
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1

Calculating Mixing Ratio of Hydroxyl Radicals at Sea Level

  • Nimmy
  • · Replies 3 ·
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3

Centripedal acceleration of an electron

  • azurken
  • · Replies 7 ·
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7

Coefficients for the equation of the position vs time equation

  • Neutrinogun
  • · Replies 1 ·
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1

Why is the electric field angle off by 180 degrees?

  • 1MileCrash
  • · Replies 4 ·
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4

AP Physics B Course Description Multiple Choice #3-4

  • moose97
  • · Replies 1 ·
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1

Millikan oildrop experiment: archimedes' principle

  • Looh
  • · Replies 3 ·
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3

Why is velocity negative for object on time-varying inclined plane?

  • Vatsa
  • · Replies 5 ·
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5

What is the charge density in a sphere with a given electric potential?

  • T-chef
  • · Replies 4 ·
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4

Distance of building related to echo

  • songoku
  • · Replies 12 ·
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12

Rotational mechanics. cylinder over a plank

  • vinay.ryder13
  • · Replies 5 ·
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5

What Are Unique Acoustics Topics for an IB Extended Essay?

  • Mathesaurus
  • · Replies 1 ·
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1
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3

Bacteria population formula reach 1 million?

  • ImStuck1
  • · Replies 11 ·
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11

Simple Projectile Motion of a rock

  • cowmoo32
  • · Replies 14 ·
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14

How Do You Calculate the Mass Concentration of N2O in Air?

  • Nimmy
  • · Replies 4 ·
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4
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5

Electric field above one end of a straight line segment?

  • aftershock
  • · Replies 1 ·
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1

Dynamic FBD - Man and box sliding on an incline

  • theBEAST
  • · Replies 7 ·
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7

Dropping a mass in a hole through the Center of Earth

  • Pruddy
  • · Replies 6 ·
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6

How Do I Resolve the Units in This Black Hole Mass Equation?

  • CavortingMonk
  • · Replies 5 ·
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5

Velocity of a ball in a new coordinate system.

  • theBEAST
  • · Replies 5 ·
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5

Visualizing Electric Field Inside a Nonconducting Sphere

  • bigplanet401
  • · Replies 6 ·
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6

Pressure of a gas in discharge tube

  • chikis
  • · Replies 2 ·
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2

My solution doesnt match the Schaums Collgege Physics book.

  • udegatame
  • · Replies 4 ·
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4

Elevator with constant acceleration

  • cowmoo32
  • · Replies 5 ·
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5

How Does the Speed of a Van Affect the Lorentz Force in a Magnetic Field?

  • elecstudent1
  • · Replies 3 ·
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3

Simple Harmonic Motion (SHM) question check

  • saraht4bysion
  • · Replies 1 ·
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1

How does mass M enter the friction force equation for connected blocks?

  • dawn_pingpong
  • · Replies 8 ·
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8

Force needed to lift a 5000 kg block with distributed load on lever

  • barvas11
  • · Replies 25 ·
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25

Voltage across inductor in parallel RLC resonance at constant current

  • Roodles01
  • · Replies 6 ·
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6

Position and Displacement Vectors- The Watermelon Seed Vector

  • Pmand92
  • · Replies 8 ·
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8

Throwing objects in the air and calculating height problem

  • BeeGeeks
  • · Replies 4 ·
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4
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7

Adding vectors algebraically to find displacement

  • KevinFuerst
  • · Replies 10 ·
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10

Solving for Electric Force Balance in a Suspended Sphere Setup"

  • Brothas
  • · Replies 10 ·
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10

Object accelerated at one G for one year

  • Supersiiix4
  • · Replies 1 ·
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1

Kinematics Questions: Solutions and Explanations

  • MXCD
  • · Replies 2 ·
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2

Simple machine project: 4x5 feet with 7 processes

  • bmguico
  • · Replies 3 ·
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3

Surface tension capillary rise method equation

  • Faraday123
  • · Replies 1 ·
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1

Objective questions regarding projectile motion - 2 dimension .

  • sankalpmittal
  • · Replies 28 ·
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28

How Does an Electric Bell Function?

  • alicia113
  • · Replies 4 ·
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4

Potential difference that needs to be mantained

  • alicia113
  • · Replies 1 ·
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1

Electric, Gravitatinal, and magnetic

  • alicia113
  • · Replies 1 ·
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1

Fe2+ and Fe3+ ions in a mass spectrometer

  • alicia113
  • · Replies 2 ·
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2

Can Software Estimate a Hyperbolic Equation from Data Points?

  • dazza95
  • · Replies 1 ·
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1

Rolling without slipping question

  • assaftolko
  • · Replies 18 ·
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18

Maximum vertical and horizontal forces.

  • theBEAST
  • · Replies 3 ·
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3

Work of a car's engine as it moves up a slope

  • v0rtexza
  • · Replies 5 ·
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5

Resultant Velocity of sailing boat

  • Purity
  • · Replies 4 ·
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4

Center of mass of a solid hemisphere (where's the error)?

  • rahul.mishra
  • · Replies 3 ·
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3

Problem with distance in relation to acceleration.

  • BeeGeeks
  • · Replies 3 ·
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3
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4

Finding the Center of Mass for a Hemisphere and Right Cone

  • rahul.mishra
  • · Replies 2 ·
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2

Speed, frequency and wavelength of transverse waves from crest data

  • v0rtexza
  • · Replies 8 ·
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8

What is the Frictional Force on the Wooden Crate?

  • Saged
  • · Replies 5 ·
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5

How to find angle whit system of equations

  • felipenavarro
  • · Replies 5 ·
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5

A circuit question involving internal resistances

  • jianghan
  • · Replies 2 ·
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2

Electromagnetism Problem (conductors, dielectrics)

  • roam
  • · Replies 3 ·
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3

Magnetic Induction and Magnetic Field

  • roam
  • · Replies 1 ·
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1

Relation of max velocity and max tension

  • hav0c
  • · Replies 4 ·
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4

Force on triangular current loop: line integrals

  • Bassalisk
  • · Replies 2 ·
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2

Current through the circuit with resistor and light bulb

  • ashyau
  • · Replies 2 ·
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2

Something to be clarified about EM Wave: TE, TM and TEM

  • NexusN
  • · Replies 1 ·
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1

Do identical crates reach terminal velocity at the same rate?

  • Molly1235
  • · Replies 12 ·
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12

Torque Problem from MCAT Physics Review Book

  • bchung606
  • · Replies 3 ·
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3

Average Acceleration Question for Bullet Through Board

  • DrDonaldDuck
  • · Replies 1 ·
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1

Measuring error analysis with 3 variables

  • getty102
  • · Replies 1 ·
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1

Charges are connected and then kicked by chuck norris

  • 1MileCrash
  • · Replies 3 ·
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3

Conservation Of Linear Momentum Question

  • v0rtexza
  • · Replies 4 ·
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4

Data of several moons of the planets Uranus (new)

  • alicia113
  • · Replies 1 ·
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1

Why Do Voltmeter Readings Differ in a Series Circuit?

  • swaha
  • · Replies 3 ·
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3
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16

Momentum, impulse and force (mathematical)

  • hms.tech
  • · Replies 4 ·
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4

A balloon lifting a heavy stone

  • jianghan
  • · Replies 5 ·
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5

Finding the equilibrium temperature of a mixture substances

  • maanneaguila
  • · Replies 16 ·
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16

Determining interference pattern for two loudspeakers

  • twinklestar28
  • · Replies 2 ·
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2

POWER: is it possible to have the same answer?

  • maanneaguila
  • · Replies 8 ·
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8

How heavy does a roller coaster rider feel?

  • Walley1
  • · Replies 4 ·
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4

Velocity of fluid through a spherical surface

  • racnna
  • · Replies 1 ·
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1

How High Does Jane Swing on the Vine?

  • d.tran103
  • · Replies 2 ·
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2

Molecular interpretation of temperature

  • thattgirljoyy
  • · Replies 3 ·
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3

Kinematics in 2 dimensions; position vector problem.

  • Purity
  • · Replies 7 ·
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7

Velocity of fluid through a point on a plane

  • racnna
  • · Replies 3 ·
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3

Speed of fluid passing through a plane normal to a vector

  • racnna
  • · Replies 6 ·
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6

Chain Problem involving Kinetic Friction

  • Tanya Sharma
  • · Replies 18 ·
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18

How Do You Calculate the Impulse Exerted by the Wall on a Ball?

  • v0rtexza
  • · Replies 3 ·
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3

Helium piston equilibrium after adiabatic expansion

  • jianghan
  • · Replies 16 ·
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16

Acceleration of electrons in lamp

  • MateuszS
  • · Replies 9 ·
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9

What is the velocity of a body thrown into a pit?

  • chawki
  • · Replies 12 ·
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12

How Is the Kinetic Energy of a Proton Calculated in an Electric Field?

  • Peter G.
  • · Replies 3 ·
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3

Electric Field Near a Plane of Charge: Why is the Total Field Not Zero?

  • bigplanet401
  • · Replies 4 ·
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4

What is the Binding Energy per Nucleon of 238U in MeV?

  • felipenavarro
  • · Replies 4 ·
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4

Centripetal acceleration: angle at which one will leave a dome

  • dawn_pingpong
  • · Replies 2 ·
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2

Body sinking in lake: speed entering, acceleration in water, maximum depth

  • dawn_pingpong
  • · Replies 2 ·
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2

50GeV electron speed after 1m and magnetic field for 280m radius

  • jianghan
  • · Replies 6 ·
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6

Finding the Velocity of a Spaceship Using Special Relativity

  • cjkent
  • · Replies 14 ·
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14

Finger position on violin G-string to play note A

  • jianghan
  • · Replies 4 ·
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4

Calculating Force and Torque on Electric Motor Coil

  • gaimesh
  • · Replies 1 ·
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1