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

Clarifying the Calculation of Apparent and Actual Depth

  • nblu
  • · Replies 7 ·
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7

Solving Fun Ski Area Problem: 3.67x10^7 W

  • Vanessa23
  • · Replies 3 ·
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3

Finding elevator acceleration with normal force 405 N

  • Blink691
  • · Replies 9 ·
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9

What Was the Speed of the Car Based on Skid Marks and Kinetic Friction?

  • jumptheair
  • · Replies 3 ·
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3

How to Calculate Impulse and Average Force in a Baseball Bat Collision

  • Vanessa23
  • · Replies 2 ·
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2

From the nature of light unit.

  • nblu
  • · Replies 3 ·
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3

Try if you are A+ student or teacher~

  • kimjh
  • · Replies 1 ·
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1

How Much Work is Done Pushing a Sled Up an Incline?

  • ICEMANN6859
  • · Replies 6 ·
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6

How Is Average Force Calculated in Ball Bounce Dynamics?

  • perfect_piccolo
  • · Replies 5 ·
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5

Average force exerted by the ball

  • mathcrzy
  • · Replies 9 ·
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9

How does charge move from the inside to the outside of the butterfly-net?

  • slakedlime
  • · Replies 1 ·
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1

Finding Velocity as a Function of Time for a Particle with Retarding Force

  • lapo3399
  • · Replies 5 ·
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5

Kinetic/Potential Energy of Vehicle on Ramps

  • lapo3399
  • · Replies 2 ·
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2

Uniform circular motion car problem

  • S[e^x]=f(u)^n
  • · Replies 7 ·
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7

Space shuttle releases a sattelite into a circular orbit

  • jmcmillian
  • · Replies 2 ·
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2

A vs Fnet Graph: Acceleration or Force?

  • xCanx
  • · Replies 5 ·
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5

Ball thrown at 60° toward cliff, lands after 4.0s

  • klm
  • · Replies 19 ·
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19

Work needed to stretch a spring

  • mathcrzy
  • · Replies 1 ·
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1

Solving Elasticity Question: Find Height of Block Above Release

  • crazyeyes06
  • · Replies 1 ·
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1

Understanding Phase Difference in 3D Waves

  • Kites
  • · Replies 2 ·
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2

Finding plane velocity from acceleration and time

  • rfurtado
  • · Replies 2 ·
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2

Possible IB extended essay topic

  • isnt life juicy
  • · Replies 1 ·
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1

Verifying Calculating Force on Elevator Support Cable

  • ilkjester
  • · Replies 3 ·
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3

Newton's Law- 3 objects on a pulley

  • johnsonandrew
  • · Replies 4 ·
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4

Bicyclist motion: 35 m east then 30 m north in 21 s

  • kevinf
  • · Replies 16 ·
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16

Finding Kinetic Energy of Person Spinning on Chair w/ Weights

  • dvdqnoc
  • · Replies 4 ·
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4

Me I Am So Terrible At Physics

  • malajube
  • · Replies 1 ·
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1

I want to find Max horizontal range without

  • Saladsamurai
  • · Replies 3 ·
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3
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3
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4

Terminal velocity of a coffee filter

  • rkjul
  • · Replies 1 ·
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1

Calculating Force of Static Friction on a Car

  • Fire Slayer
  • · Replies 1 ·
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1

Finding rocket puck direction and distance from velocity graphs

  • klm
  • · Replies 18 ·
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18

Calculating Angular Velocity of a Disk after Inelastic Collision

  • fatcat39
  • · Replies 7 ·
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7

Coefficient of kinetic friction for a sled pulled at 30°

  • btownzfinest
  • · Replies 2 ·
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2

Tension and Horizontal Circular Motion

  • SeanAmI122886
  • · Replies 4 ·
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4

Constant acceleration on a curved path from A to B

  • truetaurus
  • · Replies 3 ·
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3

How to calculate torque for bicep in rotational motion?

  • faoltaem
  • · Replies 7 ·
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7

Force perpendicular to incline to prevent sliding on 35° slope

  • tidalwav1990
  • · Replies 1 ·
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1

Energy Problem-what did I do wrong?

  • quickclick330
  • · Replies 1 ·
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1

Charge on Capacitor After 4.00ms: Solving the Problem

  • Ryo124
  • · Replies 5 ·
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5

Calculating the speed of an object going down an incline

  • lull
  • · Replies 4 ·
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4

How far does a sled slide on level ground with friction?

  • KrazeeNym
  • · Replies 10 ·
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10

What is the acceleration of each mass with a friction coefficient of .25?

  • willingtolearn
  • · Replies 8 ·
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8

Calculate Asteroid Escape and Final Speeds - Get Help Today!"

  • mshah3
  • · Replies 3 ·
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3

How Can You Experimentally Determine the Maximum Range of a Projectile?

  • lplover1990
  • · Replies 5 ·
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5

Relativistic rocket propulsion with ejected fuel at c/2

  • anon54325345
  • · Replies 1 ·
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1

Does adding a dielectric to a capacitor increase the electric field?

  • indigojoker
  • · Replies 12 ·
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12

Calculating Resistance of a Light Bulb Filament

  • chris85
  • · Replies 5 ·
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5

Incline with a Spring and Loop the Loop

  • chaotixmonjuish
  • · Replies 28 ·
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28

Acceleration and Rotational Motion

  • Eternalmetal
  • · Replies 6 ·
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6

Maximum height above cliff in projectile motion

  • Saladsamurai
  • · Replies 10 ·
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10

How long does he live as it measured in his frame?

  • azatkgz
  • · Replies 2 ·
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2

How Do You Calculate Projectile Motion in Football?

  • Epif
  • · Replies 1 ·
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1

Momentum conservation with two skaters and a football collision

  • DLT
  • · Replies 3 ·
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3

Applet about special relativity

  • Niles
  • · Replies 4 ·
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4

Relative Velocity of an aircraft carrier

  • CursedAntagonis
  • · Replies 2 ·
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2

How Do I Calculate the Charge Over Time in Simple RC Circuits?

  • stephencohorn
  • · Replies 3 ·
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3

Hot air balloon ribbon drop and projectile motion problems

  • sehar100
  • · Replies 1 ·
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1

Projectile motion, archer shot, plane in wind, river crossing

  • sehar100
  • · Replies 1 ·
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1

How can Car A have the highest top speed but lose a drag race to Car B?

  • Chunkysalsa
  • · Replies 8 ·
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8

Calculate Tension: 65.0kg Box with 4.8m/s Velocity

  • skandaluz
  • · Replies 1 ·
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1
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1

Average velocity with Miata, two-car chase, and bullet speed problems

  • hstudent321
  • · Replies 2 ·
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2

Problem with projectile velocity

  • sabres
  • · Replies 7 ·
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7

Finding normal force from center of gravity

  • thatgirlyouknow
  • · Replies 6 ·
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6

Two blocks with Tension and Friction

  • Fire Slayer
  • · Replies 1 ·
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1

Two blocks on incline connected to hanging mass over pulley

  • Fire Slayer
  • · Replies 1 ·
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1
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2

Hare and tortoise race: when should the hare resume running

  • evomunkie
  • · Replies 1 ·
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1

The minimum distance required to stop a car

  • evomunkie
  • · Replies 1 ·
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1

How Far Will a Block Slide Up an Incline Before Stopping?

  • bulldog23
  • · Replies 21 ·
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21

2 resistors connected in parallel. same two in series what is the current?

  • Xaspire88
  • · Replies 16 ·
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16

Car acceleration around a corner

  • TonkaQD4
  • · Replies 29 ·
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29

Minimum power output for a 68.4 kg rope climb in 8.38 seconds

  • bulldog23
  • · Replies 4 ·
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4

Solving problem very important

  • elyes
  • · Replies 1 ·
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1

Push the dielectric half way into the capacitor

  • indigojoker
  • · Replies 7 ·
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7

How Do You Model Instantaneous Velocity in a Fluid with Square Root Drag?

  • S[e^x]=f(u)^n
  • · Replies 3 ·
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3

Calculate Power Used to Climb Small Airplane - 2 Sig Fig %

  • Superfluous
  • · Replies 2 ·
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2

Solving Projectile Motion Problems

  • Saladsamurai
  • · Replies 9 ·
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9

Simple pendulum: find speed at lowest position given speed at 24°

  • chaotixmonjuish
  • · Replies 13 ·
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13

Calculating Kinetic Energy from Force-Distance Graph

  • bulldog23
  • · Replies 9 ·
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9

Calculating Gold Mass in a 12.08 kg Quartz-Gold Rock

  • yuvlevental
  • · Replies 1 ·
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1

Calculating Work on a Sliding Block on an Inclined Plane

  • danni7070
  • · Replies 9 ·
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9

Atwood's Machine Simulation: Determining Height with Given Masses

  • cajunchrisbu
  • · Replies 3 ·
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3

Acceleration of a 1kg Mass Under a 100N Force

  • A(s)
  • · Replies 5 ·
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5

Work and Potential Energy Question

  • Arbitrary
  • · Replies 1 ·
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1

Calculating Work for a Ballista

  • Arbitrary
  • · Replies 1 ·
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1

Calculate Distance a Tiger Will Leap - Tiger Leap Physics

  • helpinphysics
  • · Replies 26 ·
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26
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4

Significant figures for trigonometric and other functions

  • Woozie
  • · Replies 2 ·
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2

How Do You Calculate Friction and Forces in a Skidding Car Scenario?

  • AnnieD
  • · Replies 3 ·
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3

Frequencies of the first two overtones of an air column open at both ends

  • Tia_Bear
  • · Replies 1 ·
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1

Finding tension T1 in a knot with 90N vertical force

  • anglum
  • · Replies 38 ·
2
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38

Which of the following objects has the greatest moment of inertia?

  • fatcat39
  • · Replies 3 ·
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3

Coefficient of friction of box of books

  • willingtolearn
  • · Replies 5 ·
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5

Roller coaster speed at bottom of dip with 24m radius

  • aligass2004
  • · Replies 5 ·
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5

Momentum of carts of different masses

  • cyclonefb3
  • · Replies 3 ·
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3

Calculating Maximum Height of a Sliding Frisbee on a Sloped Roof

  • shiri
  • · Replies 8 ·
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8

Probe accelerating in space for 6 seconds: finding distance traveled

  • shakejuhn
  • · Replies 1 ·
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1