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

Proving F is Conservative: Steps to Show

  • mopar969
  • · Replies 18 ·
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18

Two charges, individual charge values?

  • xvie
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1

How Far Apart Will the Teddy Bears Land on the Ground?

  • perfectlovehe
  • · Replies 3 ·
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3

How Do You Calculate the Constant Angular Acceleration of a Centrifuge?

  • perfectlovehe
  • · Replies 1 ·
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1

Finding velocity from a distance-time graph with a bent line

  • deaninator
  • · Replies 9 ·
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9

Teddy Bear Falls: Solving a Trajectory Problem

  • perfectlovehe
  • · Replies 1 ·
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1

Calculating Distance Between Copenhagen and Rome on Same Longitude

  • perfectlovehe
  • · Replies 1 ·
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1

Bullet fired into block on table, find initial bullet speed

  • eadel
  • · Replies 2 ·
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2

Circular Motion and String Tension

  • eriadoc
  • · Replies 2 ·
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2

How Do You Calculate Initial Vertical Velocity?

  • jubbly
  • · Replies 6 ·
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6

How to find the forces and balance a lever with a weight on one end?

  • bmk120
  • · Replies 2 ·
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2

Spring Scale Tension Force Problem

  • whoopie88
  • · Replies 1 ·
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1

I think the college board was wrong Maybe I am but I don't see how

  • GreenPrint
  • · Replies 2 ·
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2

Magnetic Field due to Power Lines

  • pssss
  • · Replies 2 ·
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2

Calculating Jet Velocity with Kinematic Equations

  • deaninator
  • · Replies 11 ·
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11

Finding compression distance for mass on spring with initial velocity

  • jrdwagas
  • · Replies 1 ·
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1
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1

How to Prove Vector Identity k = (a+b)(c+d)?

  • colerelm1
  • · Replies 5 ·
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5

Apollo 13 emergency burn time reversal from 24000 mph

  • cverret311
  • · Replies 2 ·
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2

Applying an impulse on a dumbbell from one end

  • teoferrazzi
  • · Replies 30 ·
2
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30

Powering the Human Brain: How Long Can One Snickers Bar Last?

  • tennischick89
  • · Replies 2 ·
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2

First law of thermodynamics with negative U, Q, and W

  • Sixty3
  • · Replies 1 ·
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1

Two boxes; one pushing the other

  • Karajovic
  • · Replies 14 ·
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14

Tug-of-War Forces: Solving the Rope Problem

  • whoopie88
  • · Replies 3 ·
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3

How Do You Calculate Reactions at Supports in Equilibrium Problems?

  • Cursed
  • · Replies 2 ·
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2

Stunt Driver's Car Jump: Minimum Speed Calculation and Angle Adjustment

  • Havenater23
  • · Replies 2 ·
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2

A ball launched on a imclined plane

  • dannyggg2003
  • · Replies 2 ·
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2

Spring problem - conservation of energy?

  • ksherwood
  • · Replies 3 ·
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3

Calculating Speed in Elastic collision

  • connie5828
  • · Replies 7 ·
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7

Two Boxes on an incline, tied together by a rope, calculuate tension.

  • trafficsigns
  • · Replies 1 ·
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1

How Does Friction Affect a Car's Maximum Acceleration?

  • kneu
  • · Replies 3 ·
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3

Velocity vs. Time Graphical Interpretation

  • 1337Montage
  • · Replies 1 ·
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1

Angular Motion and Young's Modulus

  • fajoler
  • · Replies 3 ·
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3

Hammer lever force and aluminum wire elongation in circular motion

  • Brianjw
  • · Replies 13 ·
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13

How to find coefficient of kinetic friction from ramp data

  • hfz_105
  • · Replies 1 ·
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1
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3

How Does Current Direction Affect Force in a Rectangular Loop?

  • ahazen
  • · Replies 3 ·
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3

How Far Will a Sliding Box Travel After Leaving a Ramp?

  • DocDaGeniouss
  • · Replies 1 ·
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1

What is her velocity relative to the surface of the ice?

  • Waveparticle
  • · Replies 3 ·
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3

Effect of Mass and Force on Acceleration and Distance Traveled in Kinematics

  • Karajovic
  • · Replies 2 ·
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2

Find the acceleration of an object that is attracted to a magnetic field

  • moonman239
  • · Replies 3 ·
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3

How much deeper does a barge sink when a 400-kg crate is loaded onto it?

  • mogibb1
  • · Replies 8 ·
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8

Are forces depending on angle and velocity conservative?

  • ajlucia
  • · Replies 1 ·
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1

Change in atmopheric pressure with height (Thermodynamics)

  • Slepton
  • · Replies 6 ·
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6

What is the Work Done by Force F on a Moving Object?

  • WahooMan
  • · Replies 2 ·
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2

Electric Field Integration Outside a Cylinder

  • frostmephit
  • · Replies 1 ·
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1

Finding temperature through a manometer

  • Twoism
  • · Replies 2 ·
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2

Relative Velocity of Two Ships: When Is Their Separation Least?

  • Aramatheis
  • · Replies 5 ·
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5

Finding Maximum Weight on a Ramp with Coefficients of Friction

  • kari82
  • · Replies 1 ·
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1

Volume of Air in Cylinder at 20°C - Calculating with Ideal Gas Law

  • Daniiel
  • · Replies 2 ·
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2

Converting vector in cartesian to cylindrical coordinates

  • dingo_d
  • · Replies 6 ·
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6

Significant Figures and speed of a runner

  • Bohring
  • · Replies 5 ·
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5

Finding the Density of a Planet using Time

  • lanzjohn
  • · Replies 5 ·
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5

Finding velocity from force function F(x) = A + Bx

  • jumbogala
  • · Replies 2 ·
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2

Pressures at the water levels in the two open tanks?

  • MechaMZ
  • · Replies 1 ·
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1

Forces, involving tension and a pendulum

  • ://Justice
  • · Replies 10 ·
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10

What is the Force Exerted on a Bathroom Scale in an Elevator on Earth?

  • whoopie88
  • · Replies 4 ·
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4

Simple harmonic motion [ I have an exam tomorrow morning]

  • Telemachus
  • · Replies 14 ·
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14

Solving Friction Problem: Minimum Force Needed

  • aquila457
  • · Replies 2 ·
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2

Maximum angle for machine to pull ice block up frictionless slope

  • Runaway
  • · Replies 5 ·
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5

Finding the angle to minimize pulling force on a block with friction

  • Airsteve0
  • · Replies 4 ·
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4

Skier accelerating down a 30° slope with friction

  • whoopie88
  • · Replies 4 ·
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4

Three boxes in contact pushed by 75 N force

  • pb23me
  • · Replies 7 ·
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7

How Do You Calculate the Mass of a Blue Whale Using Momentum?

  • danield3
  • · Replies 1 ·
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1

Electric field inside a conducting cylinder with wire

  • Liquidxlax
  • · Replies 4 ·
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4

Can Savannah Catch the Accelerating School Bus?

  • sbayla31
  • · Replies 3 ·
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3

Table cloth pulled from underneath a block?

  • draymire
  • · Replies 2 ·
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2

Accleration problem - car strikes a tree

  • Frosty8
  • · Replies 2 ·
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2

Calculating Friction Force of a 4000 kg Truck on a 15° Slope

  • kdb004
  • · Replies 3 ·
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3

How Do You Correctly Add and Subtract Multiple Vectors?

  • k-rod AP 2010
  • · Replies 3 ·
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3

How to calculate torque with cross product?

  • mohemoto
  • · Replies 3 ·
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3

Spring Potential energy, should be easy?

  • Patdon10
  • · Replies 4 ·
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4

Conservation of Momentum with Friction

  • derf709
  • · Replies 1 ·
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1

Passive forces and Newton's laws

  • tica86
  • · Replies 1 ·
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1

Determining the speed of a rocket car

  • Solidearth
  • · Replies 1 ·
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1

Police car catching speeder with constant acceleration

  • moondawg
  • · Replies 2 ·
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2

How Is Work and Heat Transfer Calculated in a Polytropic Process for Helium Gas?

  • dillonmhudson
  • · Replies 3 ·
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3

Physics- center of mass problem ?

  • J.live
  • · Replies 4 ·
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4

Kinetic Fricion Acceleration Problem

  • laxxie
  • · Replies 3 ·
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3

Calculating x and y Components of Equilibrium Forces

  • kari82
  • · Replies 2 ·
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2

How do I find the eigenvalues and eigenvectors of a given matrix?

  • LoopQG
  • · Replies 7 ·
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7

Time for object to travel 10 m with applied force and friction

  • Telemachus
  • · Replies 2 ·
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2

How Far Down the Slope Does the Arrow Land?

  • Umphreak89
  • · Replies 11 ·
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11

Finding Initial velocity given certain variables

  • Ryang
  • · Replies 6 ·
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6

Final velocity of spring down incline with fricition

  • gap0063
  • · Replies 1 ·
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1

Calculating Energy for Orbital Deployment

  • ashvuck101
  • · Replies 1 ·
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1

Calculating momentum when you know mass and KE

  • connie5828
  • · Replies 5 ·
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5

Acceleration is (-2.0i + 4.0j), velocity is 12 m/s

  • new^2^physics
  • · Replies 4 ·
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4

Frictional force acting on mass

  • demonslayer42
  • · Replies 5 ·
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5
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15

Simple recoil velocity question

  • LIZard137
  • · Replies 1 ·
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1

Bernoulli's Equation and a water pipe

  • Zaros
  • · Replies 5 ·
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5

Calculating Work with Kinetic Energy in Orbit

  • The_Journey
  • · Replies 2 ·
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2
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14
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5

Cost of setting up a sattelite?

  • Zaros
  • · Replies 7 ·
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7

Ball completing 2 revolutions inside a cylinder before hitting ground

  • roman15
  • · Replies 7 ·
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7

Schrodinger ground state wave function

  • wrongusername
  • · Replies 3 ·
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3

2 boxes stacked, force applied to bottom box

  • johnsonc007
  • · Replies 1 ·
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1

Current density, resistance and resistivity problem

  • ctpengage
  • · Replies 4 ·
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4