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

Find Acceleration of Block M in Figure with Mass m at 0.8R

  • homo-sapiens
  • · Replies 6 ·
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6

What does it mean to normalize a wave function?

  • arcoon
  • · Replies 1 ·
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1

Spherically symmetric charge density

  • renegade05
  • · Replies 1 ·
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1

Car-truck collision and gravitational force problems

  • kirsten_2009
  • · Replies 17 ·
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17

How to Solve for Coefficient of Kinetic Friction: Practice Test Question

  • Axbrown
  • · Replies 4 ·
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4

How is Impulse Calculated in a Collision with Changing Velocities?

  • Aprizal
  • · Replies 5 ·
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5

How Much Water Vapor Is Needed to Heat a Pot from 30C to 60C?

  • AlexPilk
  • · Replies 4 ·
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4

Spring Compression at kinetic energy = 0

  • Abid Rizvi
  • · Replies 7 ·
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7

How Long Until the Fox Catches the Mouse?

  • Kimboslice
  • · Replies 1 ·
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1

Velocity of mailbag hitting ground after helicopter release

  • TanakaTarou
  • · Replies 5 ·
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5

Newton's force and circular acceleration

  • homo-sapiens
  • · Replies 5 ·
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5

Angular momentum of projectile.

  • Satvik Pandey
  • · Replies 2 ·
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2

Parabolic motion problem: bomber plane case

  • thegreengineer
  • · Replies 3 ·
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3

Why can a bird survive on a high voltage power line without getting fried?

  • Hereformore
  • · Replies 6 ·
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6

Zero Electric Flux Through a Closed Surface

  • student14
  • · Replies 6 ·
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6

Calculating Magnetic Force: Equations for Moving Charges at Right Angles

  • camel-man
  • · Replies 2 ·
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2

Two capacitors charged in parallel then reconnected with opposite polarity

  • Casey A.
  • · Replies 5 ·
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5

Electric Potential Energy concepts

  • wannabee_engi
  • · Replies 5 ·
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5

Newton’s law of motion for rotation clarification

  • Luchekv
  • · Replies 3 ·
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3

Solving Mechanics Problem: Angle, Speed, Centripetal Acceleration & More

  • Torunn
  • · Replies 12 ·
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12

Thermal Elongation of 2 different rods

  • Karol
  • · Replies 2 ·
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2

How do I linearize a square root graph?

  • Varad
  • · Replies 3 ·
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3

Quadratic and linear drag problem

  • Ascendant78
  • · Replies 1 ·
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1

String with mass pulling block up frictionless ramp

  • PsychonautQQ
  • · Replies 2 ·
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2

Galilean transformations - What am I messing up here?

  • Achmed
  • · Replies 8 ·
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8

How Is Gravitational Acceleration Expressed Using Distance and Time Intervals?

  • monkeylord714
  • · Replies 4 ·
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4

Projectile Motion with initial velocity

  • Yashbhatt
  • · Replies 26 ·
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26

Wrench falling past 2 metre window in 0.6 seconds

  • Hurr1cane
  • · Replies 8 ·
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8

Flatbed truck going round a circular road on an incline

  • whdahl
  • · Replies 6 ·
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6

How Does Hole Diameter Affect Angular Speed in Water Vortices?

  • gianamar
  • · Replies 5 ·
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5

Calculating power of one of two resistors

  • carpelumen
  • · Replies 1 ·
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1

"best" value for volume of a box

  • PhysicsMan999
  • · Replies 3 ·
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3

Projectile Motion, only given horizontal distance

  • PhysicsMan999
  • · Replies 5 ·
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5

Velocity of Baseball at 47 m Height

  • bradsmith
  • · Replies 4 ·
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4

What is the Best Way to Approach a Basic Dynamics Problem?

  • amondellio
  • · Replies 21 ·
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21

Forces on Identical Bricks: Ranking Magnitudes

  • ohphysics
  • · Replies 3 ·
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3

Adding resistors in parallel - Current Change through resistors

  • Hereformore
  • · Replies 5 ·
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5

Problem resolving forces into components

  • yugeci
  • · Replies 4 ·
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4

Packing fraction of spheres in a HCC structure

  • CAF123
  • · Replies 8 ·
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8

Physics car problem kinematics

  • benEE2018
  • · Replies 4 ·
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4

Ball and Ramp: Solving for Time and Evaluating Position

  • atomB
  • · Replies 2 ·
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2

What Does P Represent in Intensity = P/Area?

  • Maddie1609
  • · Replies 2 ·
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2

Why voltage divider rule applies separately to each parallel branch

  • orangeincup
  • · Replies 2 ·
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2

Ball thrown down vs up from 19.6 m balcony

  • Chasezap
  • · Replies 3 ·
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3
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9
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10

Potential due to two oppositely charged half spherical shells

  • oddjobmj
  • · Replies 14 ·
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14

Mr. Hammer's Epic Battle with Two Ninjas

  • Chasezap
  • · Replies 3 ·
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3

A ball is thrown vertically upward.

  • Chasezap
  • · Replies 2 ·
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2

The moment about a point on a post

  • Feodalherren
  • · Replies 6 ·
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6

Calculating Magnetic Field Due to Multiple Cavities Using Ampere's Law

  • luiseduardo
  • · Replies 1 ·
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1
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1

Electric field along a finite rod

  • mintsnapple
  • · Replies 9 ·
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9

Forces and Inclined plane (ramp)

  • homo-sapiens
  • · Replies 9 ·
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9

Mass on a Swing Ride: Physics of Thrill Rides

  • Heyhay
  • · Replies 2 ·
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2
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7

What are the air speeds in a Venturi meter with varying tube diameters?

  • happysmiles36
  • · Replies 2 ·
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2

How to Add Acceleration Vector in Uniform Circular Motion

  • Impulse
  • · Replies 14 ·
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14

Total force on surface of a plate?

  • eterna
  • · Replies 3 ·
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3

Resolving vectors into a unit vector

  • jmc
  • · Replies 1 ·
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1

Thermal elongation-ring on a shaft

  • Karol
  • · Replies 7 ·
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7

How to Identify the Phase of Steam Using a Thermodynamics Table?

  • dhkdeoen
  • · Replies 1 ·
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1

A problem about Calorie and Joule transformation

  • Quarlep
  • · Replies 8 ·
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8

Why does reducing wavelength restore fringes when slit separation increases?

  • desmond iking
  • · Replies 1 ·
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1

Caption: Understanding Lensing Mass and Velocity in Particle Astrophysics

  • FatPhysicsBoy
  • · Replies 2 ·
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2

Model rocket with 5m/s² acceleration for 10 seconds

  • HTT
  • · Replies 6 ·
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6
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5

Special Relativity - Events and Frames of Reference

  • Pezz
  • · Replies 6 ·
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6
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3

Simultaneity and Spatial Separation

  • fdsa1234
  • · Replies 18 ·
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18
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3

Rolling Ball and Proportionality Between Distance and Time

  • rakeru
  • · Replies 4 ·
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4

Find direction from three displacement vectors?

  • amhasque
  • · Replies 1 ·
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1

Light clock - Galilean transformations

  • Achmed
  • · Replies 1 ·
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1

Motion in a straight line and a cyclist

  • Mary1910
  • · Replies 3 ·
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3

Finding the equation to linearize experimental data

  • Varad
  • · Replies 2 ·
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2

How can you use Snell's law to find the image formed by a thick lens?

  • darksyesider
  • · Replies 9 ·
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9

Force on an object placed on an incline

  • reigner617
  • · Replies 11 ·
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11

How much farther does a car skid on wet vs dry concrete?

  • Wapapow10
  • · Replies 6 ·
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6

Two electric field problems - pick one or both

  • absolutezer0es
  • · Replies 3 ·
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3

Pressure for Frozen Water: Solving 6.6*10^(8) N/m^2

  • fightboy
  • · Replies 1 ·
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1

Convert sunlight to electricity in a given area

  • Revicted
  • · Replies 4 ·
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4

Simple Pendulum Damping: Finding Amplitude and Energy Loss Rate

  • toothpaste666
  • · Replies 24 ·
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24

Interpreting a motion diagram for a kinematics problem

  • Zandabyte
  • · Replies 1 ·
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1

How Is Kinetic Energy Calculated for a Raindrop Falling at Steady Speed?

  • SUALEH MUSLIM
  • · Replies 4 ·
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4

Mass attached to vertical spring

  • sualeh
  • · Replies 1 ·
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1

Plot Range R vs Angle Theta (0-90)

  • sally.smith4321
  • · Replies 11 ·
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11

Airplane flying west with wind from south

  • gallathus
  • · Replies 9 ·
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9

Solving for Equilibrium Forces on a 5kg Ball

  • Bhupendra
  • · Replies 7 ·
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7

Gauss's law to solve for electric field.

  • playoff
  • · Replies 8 ·
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8

How can I solve for average velocities using derivatives and integrals?

  • StrandedStudent
  • · Replies 5 ·
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5

Flux above a flat horizontal surface

  • sea95
  • · Replies 1 ·
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1

What in the name of inclined planes?

  • GrimesA
  • · Replies 15 ·
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15

How do I calculate the torque needed to turn a one tonne box 360 degrees?

  • Jimmy4455
  • · Replies 2 ·
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2

What is the correct way to calculate the doppler effect in this scenario?

  • slaw155
  • · Replies 1 ·
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1

Velocity of boat after two people have jumped off

  • QuanH
  • · Replies 9 ·
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9
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1

How Do You Solve These Advanced Optics Problems?

  • slaw155
  • · Replies 3 ·
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3

Sound intensities in hearing aids

  • slaw155
  • · Replies 2 ·
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2

Calculating Current in a Cylindrical Region

  • Aviegaille
  • · Replies 3 ·
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3