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

Calculating Power Absorbed by a Heater

  • songoku
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2

Determine from the graph the speed of the car

  • songoku
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2
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4

Which Point Has the Lowest Pressure in a Fluid System?

  • MechaMZ
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1

How Does a Ship's Angle and Friction Affect Its Acceleration Down a Ramp?

  • HaZzArD 09
  • · Replies 2 ·
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2

Work done by a non-constant force

  • clutch12
  • · Replies 9 ·
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9

Find Speed of Clay before Impact: Friction Coefficient \muk = 0.35

  • Dark Visitor
  • · Replies 26 ·
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26

Rolling motion of an unbalanced disk

  • NoYou
  • · Replies 1 ·
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1

Solving Monkey Swing Physics Problem

  • Hothot330
  • · Replies 4 ·
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4

Finding the possible frequencies of a tuning fork

  • chris097
  • · Replies 3 ·
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3

Conservation of momentum and relative velocity

  • anotherghost
  • · Replies 1 ·
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1

Volumetric Expansion: Temperature, Heat & 3 Alpha=Beta

  • mjongem
  • · Replies 3 ·
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3

Solve Doppler Problems: Train & Person

  • cyspope
  • · Replies 1 ·
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1

Simple Gas Ionization Detector Problem

  • jumbogala
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1
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10

Calculate Mass of Unknown Planet with Physics B Ques.

  • cyspope
  • · Replies 3 ·
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3

What is the sweet spot for rotational kinematics?

  • Pogorz
  • · Replies 3 ·
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3

Painter (another Equilibirum problem)

  • Bryon
  • · Replies 1 ·
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1

Inelastic Collision homework problem

  • court2011
  • · Replies 1 ·
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1

How to find initial velocity in projectile motion problem?

  • nicoleisgoat
  • · Replies 12 ·
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12

Accelerating blocks connected by a spring

  • XanziBar
  • · Replies 4 ·
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4

What Are the Limitations of the Law of Universal Gravitation?

  • Wildcatfan
  • · Replies 1 ·
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1

How Does Physics Explain Everyday Phenomena?

  • Slats88
  • · Replies 11 ·
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11
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3

Conservation of Energy + circular motion

  • anotherghost
  • · Replies 1 ·
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1

Acceleration of a rod when one end is released

  • indie452
  • · Replies 1 ·
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1

Can anyone help me out on the simple pendulum lab?

  • exparrot
  • · Replies 1 ·
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1

Astronaut pushing satellite in space shuttle problem

  • court2011
  • · Replies 1 ·
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1

Inverse Square Law concerning Light

  • MangoOverlord
  • · Replies 3 ·
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3

Calculation of Oscillation Period- Short Problem

  • BDM333
  • · Replies 1 ·
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1

Coefficient of kinetic friction of car collision

  • xshezsciencex
  • · Replies 1 ·
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1

Investigating Crash Dynamics: Lexmark Indy Race Drivers

  • Princess Raja
  • · Replies 3 ·
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3

Calculating Magnetic Energy in Our Classroom

  • tomfrank
  • · Replies 8 ·
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8

Solving the Plunge: Investigating Falling Pliers in the Amazon

  • element41
  • · Replies 1 ·
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1

Cross hanging from rearview mirror

  • jamessmith
  • · Replies 1 ·
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1

What is the linear acceleration of the bucket?

  • Dark Visitor
  • · Replies 36 ·
2
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36

Newton's Law of Gravity question

  • cyspope
  • · Replies 3 ·
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3

Solution needed : Kinematics problem

  • dawoodvora
  • · Replies 4 ·
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4

Calculating Velocity of a Cannonball After Varying Force

  • Cherrybawls
  • · Replies 2 ·
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2

Static equilibrium (conceptual)

  • kermitthefrog
  • · Replies 1 ·
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1

How High Do Colliding Masses Reach in a Frictionless Bowl?

  • joemama69
  • · Replies 1 ·
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1

Potential Energy problem homework

  • aspirare21
  • · Replies 2 ·
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2

How Does a Hockey Stick Affect Puck Velocity and Direction?

  • joemama69
  • · Replies 1 ·
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1

Rotational Kinematics - The differential gear of a car axle

  • crono_
  • · Replies 9 ·
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9

Calculating Tension in Couplings of 100T Engine & 400T Train

  • ChrisBaker8
  • · Replies 12 ·
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12

Dropping meat on weighing scale

  • quietrain
  • · Replies 8 ·
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8

Energy Conservation: Velocity of Marbles 1, 2 and 3

  • xshezsciencex
  • · Replies 1 ·
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1

Resonance and natural frequency

  • Theroen
  • · Replies 1 ·
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1

Get Refraction Homework Help - Stuck on Theta 3? Let Us Help You!

  • ibysaiyan
  • · Replies 9 ·
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9

Calculate Moment of Inertia of Disc w/ Added Mass: 40 to 30 revs/min

  • tomwilliam
  • · Replies 2 ·
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2

Violin string frequency when tension increases 15%

  • raindrops
  • · Replies 1 ·
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1

Forces acting on object hanging from rearview mirror

  • student000
  • · Replies 1 ·
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1

Finding two locations where power out is collision problem

  • Samuelb88
  • · Replies 1 ·
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1

Calculating Force P to Lift 200kg Crate: A Challenge!

  • mike41
  • · Replies 2 ·
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2

Accelerating rocket w/ changing mass *need to finish tonight*

  • Proximity
  • · Replies 6 ·
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6

How Far Is the Dog from the Shore After Walking on the Boat?

  • anotherghost
  • · Replies 1 ·
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1

Force on rope and acceleration

  • 72beeflee
  • · Replies 1 ·
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1

Zero accerlation for spacewalking astronaut and sattelite?

  • BadaBadi
  • · Replies 1 ·
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1

HELP : Q12 of Ch. 02 of Fundamentals of Physics, Resnick

  • dawoodvora
  • · Replies 2 ·
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2

Finding the Displacement of a piston in circular motion

  • Fennec
  • · Replies 5 ·
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5

Archimedes' Principle Buoyancy?

  • munchy35
  • · Replies 3 ·
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3

Mechanics: Power and Force problem.

  • knowlewj01
  • · Replies 8 ·
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8

Finding the mass of our Galaxy and the number of stars in it.

  • seizureboi
  • · Replies 4 ·
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4

Disconnected and Reconnected Capacitors

  • nns91
  • · Replies 2 ·
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2

Calculate the velocity of the particle at t=4.0 s.

  • student000
  • · Replies 3 ·
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3

Calculating Velocity of Bullet After Impact

  • thefifthlord
  • · Replies 7 ·
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7

How Do You Determine Fx and Fy in a Rigid-Body Equilibrium Problem?

  • physicsCU
  • · Replies 2 ·
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2

Find the x and y components of the following displacement.

  • 1irishman
  • · Replies 6 ·
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6

Determine the sign of angular momentum

  • MechaMZ
  • · Replies 2 ·
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2

Net displacement for a point on a circular saw

  • BHFCBabe
  • · Replies 1 ·
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1

Finding the slope and intercept of a graph

  • jumbogala
  • · Replies 1 ·
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1

Calculating Frictional Force on a Ladder Against a Wall

  • Dark Visitor
  • · Replies 15 ·
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15

Are Body Muscle Forces Conservative?

  • revolutionx89
  • · Replies 1 ·
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1

Solving Car Accident Problem: Jeep Speeding?

  • jared13
  • · Replies 1 ·
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1

How Do I Set Up Statics Forces and Moments Problems?

  • akhmed966
  • · Replies 8 ·
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8

Newton's First Law Explained: Ball Dropped From Moving Ship

  • lauralovesyou
  • · Replies 1 ·
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1

Equalizing pressure between two vessels

  • kandelabr
  • · Replies 1 ·
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1

Danger of Driving Too Fast on Icy Highway Curve: Newton's 1st Law

  • lauralovesyou
  • · Replies 1 ·
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1

Law of Conservation of Energy with a Spring

  • adrenalinefix
  • · Replies 3 ·
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3

Predict the equation for the period of a pendulum

  • soccergirl14
  • · Replies 5 ·
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5

Running Out of Gas - work & power problem

  • DraculaNotI
  • · Replies 2 ·
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2

Specific heat problem finding final temp with calorimeter system

  • bam09
  • · Replies 2 ·
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2

Question on standing/stationary waves

  • pianogirl
  • · Replies 1 ·
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1

Climbing a Ladder: Calculating Max Height with 800N Person

  • Dark Visitor
  • · Replies 24 ·
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24

Maximum Force for Block on Bracket Friction?

  • Proximity
  • · Replies 3 ·
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3

Is my Projectile Motion Program Correct?

  • hallowon
  • · Replies 3 ·
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3

Potential Energy (maximum height above initial postion)

  • dbzpwns
  • · Replies 28 ·
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28

Does Hooke's Law Explain Asymmetric Spring Oscillations?

  • qazxsw11111
  • · Replies 3 ·
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3

How does Boyles law apply to air in motion in a uniform tube?

  • Mechdude
  • · Replies 2 ·
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2

Frictionless Pulleys With Three Objects - Am I Right?

  • Procrastinate
  • · Replies 4 ·
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4

Cylindrical tank w/ water flowing out of small tube near bottom

  • Linus Pauling
  • · Replies 2 ·
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2

Calculating Mean Free Path of Molecules in a Test Tube

  • n.hirsch1
  • · Replies 1 ·
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1

Circular Motion Lab with Hanging Mass - Trying To Find Centripetal Force

  • albert4united
  • · Replies 1 ·
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1

What Power Is Needed To Accelerate An Object To 2.7 rad/s In 5.2 s?

  • n.hirsch1
  • · Replies 1 ·
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1

Combination of lenses and mirrors.

  • Timballisto
  • · Replies 3 ·
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3

What is the average velocity of the object as it falls to the ground?

  • 1irishman
  • · Replies 7 ·
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7

Is Momentum Always Conserved with Total Mechanical Energy?

  • student000
  • · Replies 1 ·
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1

Where Should a Third Charge Be Placed for Zero Net Force?

  • johnnyies
  • · Replies 4 ·
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4

Building this graph of simple harmonic motion

  • rambo5330
  • · Replies 4 ·
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4

How Bohr's angular momentum formula derived?

  • nafizkarim
  • · Replies 2 ·
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2