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

Solving a Spinning Disk Physics Exam Problem

  • discoverer02
  • · Replies 3 ·
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3

How Does Impulse Affect the Motion of a Rotating Rod on a Frictionless Table?

  • discoverer02
  • · Replies 2 ·
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2
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2

Coal plant efficiency with given heat and temperature values

  • Dx
  • · Replies 6 ·
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6

Thermal conductivity twice that of brass

  • Dx
  • · Replies 5 ·
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5

Problem with photoelectric effect

  • ant284
  • · Replies 4 ·
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4

Can Time Travel Ethics and Black Hole Physics Coexist?

  • eastsidecrew
  • · Replies 2 ·
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2

How Do You Calculate X-Ray Wavelength and Radioactive Decay?

  • dagg3r
  • · Replies 5 ·
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5

Intensity of radiation at different distances from source

  • dagg3r
  • · Replies 8 ·
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8

How to Solve This ODE Using Mathematica?

  • hhegab
  • · Replies 3 ·
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3
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3

How can I solve light and sound wave problems?

  • JM2107
  • · Replies 3 ·
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3

Whats the materials specific heat capacity?

  • Dx
  • · Replies 4 ·
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4

What is the Formula for the Doppler Effect?

  • Blueice88
  • · Replies 5 ·
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5

Revision techniques and staying calm for GCSE Physics exam

  • Viper
  • · Replies 3 ·
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3

What are the main concerns about nanotechnology research?

  • The Grimmus
  • · Replies 6 ·
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6

Calculating Tidal Patterns in a Harbour

  • chense
  • · Replies 3 ·
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3

Finding Distance from a Crash with Asymmetric Hearing

  • PiRsq
  • · Replies 4 ·
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4

Two Converging Lense Questions

  • JM2107
  • · Replies 4 ·
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4
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2

Pendulum with string hitting a peg: height conservation and circular motion

  • discoverer02
  • · Replies 6 ·
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6

Finding Tension and Forces in a Torque Diagram

  • Poutine
  • · Replies 3 ·
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3

Where can I find small MIPS programmes for learning and practice?

  • Adam
  • · Replies 2 ·
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2

Here's something to tickle your painstaking calculation-bone with

  • KillaMarcilla
  • · Replies 2 ·
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2

Circular Motion of a car Problem

  • discoverer02
  • · Replies 11 ·
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11

Conservation of Mechanical Energy Question.

  • Azrioch
  • · Replies 1 ·
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1

Power series expansion for Laplace transform

  • Will
  • · Replies 5 ·
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5

How Does Kinetic Energy Affect Velocity Changes in Space?

  • SEG9585
  • · Replies 10 ·
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10

Ok, I got an impulse problem here

  • alberto
  • · Replies 7 ·
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7
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11

Wavelength, frequency, and speed of a Standing wave.

  • Jenn_Lane2001
  • · Replies 4 ·
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4

Engine Questions - Get Answers for Your Car Troubles

  • xyz
  • · Replies 4 ·
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4
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7

How Do You Solve Problems Involving Geometric Sequences and Series?

  • Astronomer107
  • · Replies 5 ·
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5

Why does a text become blurred, looking at it through a polyethylene film?

  • timxtreme
  • · Replies 2 ·
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2

How to find the electric field inside a conducting wire

  • KillaMarcilla
  • · Replies 7 ·
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7

How Do You Calculate Phase Difference and Minimize Sound Between Two Speakers?

  • Jenn_Lane2001
  • · Replies 5 ·
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5

Trying to solve a harmonic motion problem

  • gnome
  • · Replies 2 ·
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2

Angular velocity uniform rod problem

  • Poutine
  • · Replies 3 ·
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3

Determining Wave Direction using Doppler Effect

  • tinksy
  • · Replies 3 ·
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3

How High Does an Arrow Reach if Shot at 46m/s?

  • PiRsq
  • · Replies 5 ·
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5

How to Find Logarithmic Equations from Points and an Asymptote?

  • Cummings
  • · Replies 6 ·
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6

How Do Quantum States Combine in Spin and Orbital Angular Momentum?

  • positron98
  • · Replies 3 ·
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3

How to Calculate Total Force on a Charge at the Center of Curvature?

  • mateoguapo327
  • · Replies 3 ·
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3

Background on Rayleigh dissipative function

  • eureka
  • · Replies 2 ·
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2

Integration of x² √(9-x²) using trigonometric substitution

  • Einstein
  • · Replies 2 ·
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2

Program to simulate the effects of a golf shot accurately

  • mchugh
  • · Replies 2 ·
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2

What is the Magnetic Flux Through the Sixth Face of a Die?

  • jgc139
  • · Replies 2 ·
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2

How high will he swing off the ground?"

  • Moogle
  • · Replies 6 ·
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6

Determining symmetry of y² = -5/x² without graphing

  • Artman
  • · Replies 12 ·
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12

Work, energy, and power in four grade 11 problems

  • scope
  • · Replies 5 ·
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5

How Do Maglev and Inductrack Trains Operate?

  • Brownie
  • · Replies 9 ·
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9

How can transformers boost voltage while dropping current?

  • Rockazella
  • · Replies 9 ·
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9

Arrrgh sliding friction problem

  • alberto
  • · Replies 2 ·
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2

Thermal conductivity of stainless steel

  • xyz
  • · Replies 4 ·
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4

Why is steel a better heat conductor than wood?

  • xyz
  • · Replies 2 ·
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2

The real question in real world

  • xyz
  • · Replies 4 ·
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4

Dividing complex numbers: (3-7i)/(2+3i)

  • Echo 6 Sierra
  • · Replies 7 ·
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7

What is the difference between a refrigerator and a heat engine?

  • dav2008
  • · Replies 4 ·
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4

Fundamentals of physics book solutions

  • hhegab
  • · Replies 4 ·
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4

Finding time for air drag projectile at 45 degrees

  • Matt Jacques
  • · Replies 2 ·
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2

Solving the Merry Go Round Problem Using Conservation of Angular Momentum

  • phy21050
  • · Replies 5 ·
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5

How far does the train travel during its acceleration phase?

  • dynamic998
  • · Replies 5 ·
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5

How scientists are able to identify the elements in a star

  • dynamic998
  • · Replies 8 ·
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8

How the game of baseball can be modifyed in order to be played on the moon.

  • cherry2189
  • · Replies 3 ·
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3

Body heat loss by radiation at 30°C with 1.20 m² surface area

  • Jenn_Lane2001
  • · Replies 5 ·
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5

Why does sin(refracted angle) exceed 1 at 47° incidence from n=1.4 to air?

  • steppenwolf
  • · Replies 6 ·
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6
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2

Where Can I Find Open Loop Dynamic Process Data?

  • Greg Bernhardt
  • · Replies 4 ·
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4

What is the tension force of the rope in this physics problem?

  • F|reWa||
  • · Replies 2 ·
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2

When you transform a double integral that goes over a set

  • vacuum
  • · Replies 2 ·
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2

Why Is the Angle Opposite the Shorter Side Smaller in a Triangle?

  • steppenwolf
  • · Replies 3 ·
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3

Circular Motion rubber stopper lab

  • g4orce
  • · Replies 2 ·
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2

Solving the Problem of Descending Balloons

  • discoverer02
  • · Replies 5 ·
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5

What fraction of the sign's weight is supported by each string?

  • decathlonist
  • · Replies 2 ·
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2

How Is the Center of Gravity Calculated for a Non-Uniform Rod?

  • decathlonist
  • · Replies 2 ·
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2
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2

Ideas for a physics article topic at second-year level

  • ottjes
  • · Replies 3 ·
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3

Why Did the Magnetic Slug Fall Slower in the Copper Tube Experiment?

  • babycat
  • · Replies 5 ·
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5

Newton's Law question -> Tension

  • nguyentech
  • · Replies 2 ·
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2

Understanding Forces in Action: Solving a Physics Resolution

  • EdZ
  • · Replies 6 ·
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6

A Physics Question. No calculations Involved here. General Theory Type

  • Fenix
  • · Replies 10 ·
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10

Planet 8 times farther from sun than Earth: orbital period?

  • tinksy
  • · Replies 4 ·
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4

Finding radius of cylindrical tank with hemispherical caps

  • mouseman
  • · Replies 6 ·
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6

Ow is velocity independent of mass

  • phy21050
  • · Replies 2 ·
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2
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9

AC circuits with resistor/inductor/capacitor

  • anonymous613
  • · Replies 2 ·
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2
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3

Finding safe distances from projectile bombardment over a mountain

  • discoverer02
  • · Replies 6 ·
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6

How Do You Solve This Cube Physics Problem?

  • cbaker
  • · Replies 2 ·
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2

The limit Sin[ Sin[x] ] / x as x->0

  • suffian
  • · Replies 10 ·
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10

Newton's Second Law and a bathroom scale

  • nguyentech
  • · Replies 7 ·
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7

Which Argument Makes a More Persuasive Essay Topic?

  • RuroumiKenshin
  • · Replies 15 ·
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15