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

Distance between each double-slit and the light band.

  • RProgrammer
  • · Replies 4 ·
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4

Faraday's Law, EMF, Finding Current in Loop

  • ncm2
  • · Replies 8 ·
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8

Conservation of energy problem(s)

  • Quincy
  • · Replies 5 ·
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5

Dynamics: Newtons laws of motion

  • Infamous_01
  • · Replies 3 ·
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3
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1

Angular acceleration and time for toy car on circular track

  • cobrasny
  • · Replies 1 ·
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1

What is the impulse given the wall?

  • RUNVS
  • · Replies 5 ·
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5

Atwoods MAchine with two pulleys and three masses

  • karabear1919
  • · Replies 1 ·
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1

Solve Maximum Speed Equation: I (of P) = I (of o) + Md*d

  • dsptl
  • · Replies 5 ·
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5

Constructive/Destructive Interference

  • yayirunin2car
  • · Replies 5 ·
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5

Particle Motion in a Box: Solving for Electric and Magnetic Fields

  • tronter
  • · Replies 1 ·
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1

Question abot solving final velocity in elastic collision

  • HelloMotto
  • · Replies 1 ·
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1

Nearsightedness, Refractive Power, Optics

  • yayirunin2car
  • · Replies 5 ·
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5

Maximizing Distance and Angular Velocity: Solving a Billiard Ball Problem

  • Nanoath
  • · Replies 2 ·
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2

Conservatino of Momentum: Bowling Ball and Earth

  • needlottahelp
  • · Replies 1 ·
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1

Finding Gravitational Acceleration with Atwood Machine Graphs

  • snsquare
  • · Replies 3 ·
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3

Maximum acceleration when person pushes object on flat surface

  • Yay
  • · Replies 1 ·
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1

Solving Projectile Motion with Initial Height and Final Velocity

  • Tubs
  • · Replies 24 ·
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24

Crash Acceleration: Calculate SUV's Rate of Change in Velocity

  • simplekin93
  • · Replies 5 ·
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5

Work and energy roller coaster question

  • Inertialforce
  • · Replies 6 ·
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6

How Do You Solve a Two-Mass, Two-Spring System with External Harmonic Force?

  • qwertybob
  • · Replies 3 ·
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3

Inclined plane with massless, frictionless winch

  • r34racer01
  • · Replies 1 ·
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1

Impulse and Momentum of a belly flop

  • zoner7
  • · Replies 3 ·
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3

Why does a ball thrown upward have constant acceleration?

  • simplekin93
  • · Replies 3 ·
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3

Calculating the Length of a Rough Patch Using the Work-Energy Principle

  • tater08
  • · Replies 3 ·
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3
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6

Calculating Induced EMF in a Coil

  • Ithryndil
  • · Replies 1 ·
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1

How to derive the law of conservation of mechanical energy

  • Chase R
  • · Replies 1 ·
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1

What is the train's final speed?

  • jjl15hid
  • · Replies 6 ·
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6

How Far Down Does the Stone Strike the Opposite Building Wall?

  • chudd88
  • · Replies 4 ·
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4

The Force on a Current in a Magnetic Field

  • whatadoll
  • · Replies 6 ·
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6

Average Resistance Force Question

  • alexandray77
  • · Replies 2 ·
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2

Coefficient of friction and drunk driver

  • smw1016
  • · Replies 1 ·
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1

Center of Mass of 3 Masses at Corners of Triangle w/ Side L

  • smw1016
  • · Replies 1 ·
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1

Two blocks connected by string with an angled force applied

  • blakester
  • · Replies 2 ·
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2

Collision and spring problems from chapter 8 final exam

  • grizzy225
  • · Replies 1 ·
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1

Work is still a four letter word

  • kkronvall
  • · Replies 2 ·
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2

Swimmer and River (Relative Velocity)

  • ritwik06
  • · Replies 1 ·
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1

What is the Coefficient of Kinetic Friction in a Sled Pulling Problem?

  • ScullyX51
  • · Replies 7 ·
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7

Motional emf i thinkchange in area and magnetic field

  • goWlfpack
  • · Replies 5 ·
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5

Finding electron speed from beam force on TV screen

  • uno
  • · Replies 1 ·
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1

I am lost, dont know how to solve part 2

  • asmasky
  • · Replies 5 ·
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5

Bouncing Steel Ball (Elastic Collision)

  • Awwnutz
  • · Replies 11 ·
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11

How Does Elevator Acceleration Affect Scale Readings?

  • swede5670
  • · Replies 1 ·
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1

Was the Porsche Speeding Before the Collision?

  • Kudo Shinichi
  • · Replies 12 ·
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12

How to Calculate Kinetic Energy from an Internal Explosion?

  • Bones
  • · Replies 14 ·
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14

Finding Friction with a .26kg Mass at an Angle of 26.1°

  • Emily266
  • · Replies 4 ·
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4

Find momentum of pieces of shrapnel

  • Chrisleo13
  • · Replies 12 ·
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12

Work-energy problems: ball thrown upward, car on incline, diving into pool

  • shabut NAA
  • · Replies 3 ·
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3

Energy released by spaceship explosion

  • avenkat0
  • · Replies 1 ·
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1
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1

Calculating Work: Lowering a Piano with Two Ropes

  • sktgurl930
  • · Replies 4 ·
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4

Conservation of momentum (extremely easy but confusing)

  • avenkat0
  • · Replies 3 ·
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3

Finding the Best Angle for Pulling a Block of Mass M

  • lax1113
  • · Replies 1 ·
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1

Natural Frequency and wavelength

  • viciousp
  • · Replies 1 ·
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1

What is the Motional EMF in a Solenoid with a Square Loop Inside?

  • goWlfpack
  • · Replies 6 ·
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6

Shell fragments exploding - NSL for system of particles

  • netrunnr
  • · Replies 1 ·
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1

Ellipse on x=y Axis: Find Standard Formula

  • scoradition
  • · Replies 5 ·
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5

Magnetic flux / induced emf problem

  • tombroz
  • · Replies 4 ·
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4

Conservation of Momentum in an Explosive Collision

  • avenkat0
  • · Replies 2 ·
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2

How Does Wave Amplitude Affect Ant Weightlessness on a Tightrope?

  • beanieb
  • · Replies 3 ·
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3

Why Does a Heavier Wooden Crate Stop at the Same Distance?

  • caltzx
  • · Replies 1 ·
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1

Understanding Flux and EMF in a Rotating Conducting Coil: True or False?

  • haxxorboi
  • · Replies 2 ·
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2

PE of Hanging Cord: Solve 8th Ed. Ch.8 pr.35

  • TimH
  • · Replies 3 ·
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3

Find work on a straight line path

  • steph3824
  • · Replies 5 ·
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5

How Do You Calculate the Specific Charge of a Cu2+ Ion?

  • bullseye
  • · Replies 1 ·
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1

Calculating Net Torque: An Example Problem with Formula and Image

  • dsptl
  • · Replies 5 ·
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5

Brackett series nearest to Paschen series

  • Quelsita
  • · Replies 1 ·
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1

Work and Energy of an electric motor

  • Inertialforce
  • · Replies 3 ·
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3

Car's vibration after being compressed, and released on springs

  • rinarez7
  • · Replies 2 ·
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2

Why Does Water Taper When Falling?

  • TFM
  • · Replies 4 ·
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4

Battery Energy and Altitude Change

  • gates040
  • · Replies 1 ·
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1

Energy in circular path with spring

  • edowuks
  • · Replies 1 ·
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1

How Does Buoyant Force Compare to Weight When an Object is Held Submerged?

  • tippetmaster
  • · Replies 1 ·
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1

Gravitational force on the earth and mars

  • Oerg
  • · Replies 15 ·
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15

Truck pursuit kinematics and two-block friction system on an incline

  • xxpundoxx
  • · Replies 1 ·
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1

What Is the Direction of Induced Current in Copper and Glass Tubes?

  • Precursor
  • · Replies 1 ·
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1

Solving for Mercury's Perihelion Distance

  • Kinash
  • · Replies 1 ·
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1

Is Lower Impulse Better for Surviving a Car Crash?

  • Slacker142
  • · Replies 1 ·
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1

Fiding the coefficent of friction for work done.

  • Exiab
  • · Replies 2 ·
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2

Circular motion of a ball and string

  • physics_geek
  • · Replies 4 ·
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4

Solving linear inequalities with variables

  • BeckyRN
  • · Replies 2 ·
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2

Current in a nichrome tube from resistivity and dimensions

  • krugertown
  • · Replies 2 ·
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2

How Does Height Affect Weight in a Hypothetical Mile-High Building?

  • dominus96
  • · Replies 1 ·
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1

Penguin huddling -Heat transfer mechanisms -Radiation problem

  • ctpengage
  • · Replies 1 ·
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1

Integrating Work from Force(time)

  • ecophysicist
  • · Replies 6 ·
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6

Orbit Collision: Find New Earth Orbit Axes (A,B) in Terms of R

  • me9900
  • · Replies 2 ·
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2

How Do I Calculate F1 and F2 in This Equilibrium Problem?

  • Naldo6
  • · Replies 6 ·
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6

Calculating Air Resistance Force for Projectile Motion

  • keemosabi
  • · Replies 15 ·
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15

What Are Phasors and How Do They Work in Wave Analysis?

  • tony873004
  • · Replies 3 ·
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3

What Is the Final Velocity of Two Colliding Putty Wads?

  • uno
  • · Replies 1 ·
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1

Restoring Forces and Hookes law

  • Emendez3
  • · Replies 4 ·
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4

Time to lift 3.5 kN piano 25 m with three workers and 75% efficient pulley

  • xregina12
  • · Replies 1 ·
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1

Circular Motion/Centripetal Forces

  • omgitsmonica
  • · Replies 5 ·
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5

Pushing a Block: frictionless to friction

  • Bones
  • · Replies 1 ·
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1

Calculate Space Momentum: Vi, V1f, V2f

  • uno
  • · Replies 2 ·
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2

Solving Block on Incline Physics Problem

  • Maiia
  • · Replies 1 ·
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1

Circular Motion: 2-step System (very confusing)

  • asc3nd
  • · Replies 4 ·
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4

Calculating Energy Crossing Area in Uniform Fields

  • Kris1120
  • · Replies 1 ·
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1

Velocity of Pendulum at a certain point

  • grantrudd
  • · Replies 4 ·
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4