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

Correctly solve this wave related question with step-by-step explanation

  • Logistics
  • · Replies 4 ·
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4

How to Solve Parabolic Equations

  • yeuVi
  • · Replies 3 ·
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3

What is the blood beat frequency?

  • confused1
  • · Replies 2 ·
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2
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3

Calculating Time to Melt 8.78kg of Ice in a Styrofoam Icebox

  • espnaddict014
  • · Replies 2 ·
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2

Help on Question: A Lightly Damped System Vibrates

  • Ady_h
  • · Replies 2 ·
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2
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2

How Much Current Flows Through a 300-W Computer Using 120 V?

  • mark9159
  • · Replies 2 ·
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2

Help with DE problem and seperation of variables

  • JasonJo
  • · Replies 2 ·
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2

Solving Arctan Problem: y'=\frac{1}{1-(lnx)^{-2}}

  • UrbanXrisis
  • · Replies 8 ·
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8

How to differentiate an absolut value, f(x)=│x^2-4│

  • gillgill
  • · Replies 5 ·
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5

Integrating dy/dt = ky: Understand dx, dy & e^{kt} + C

  • UrbanXrisis
  • · Replies 19 ·
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19

What Are Good Physics Textbooks with Problems and Solutions Included?

  • Dathascome
  • · Replies 6 ·
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6

Intervals of Increase and Decrease for e^x = e^-2x

  • erik05
  • · Replies 4 ·
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4
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3

Gravitational force between a particle and sphere

  • UrbanXrisis
  • · Replies 18 ·
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18
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2

Calculating Probabilities for Multiple Colors of M&M's from a Bag

  • OneSquared
  • · Replies 2 ·
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2

Solving for x in an Arithmetic Progression with Given Sum and Terms

  • mark-ashleigh
  • · Replies 8 ·
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8

Propane Tank Problem: Will Any Propane Vent at 125 psi?

  • nineeyes
  • · Replies 2 ·
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2

Trouble with Simple Harmonic Motion

  • shawonna23
  • · Replies 5 ·
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5

Blackbody radiation and stefans constant

  • Logistics
  • · Replies 3 ·
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3

How Loud Are 1000 Flies Compared to One?

  • confused1
  • · Replies 3 ·
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3

Who Can Solve These College-Level Science Problems?

  • wassam
  • · Replies 6 ·
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6

Checking Answers for Comparison Test

  • ProBasket
  • · Replies 6 ·
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6

What Mistakes Did I Make in Calculating Mars Physics Problems?

  • dabouncerx24
  • · Replies 2 ·
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2

Help With 3 Forgotten Problems Before Monday Test

  • lilnate525
  • · Replies 6 ·
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6

What is the Power Loss in a 20 Ohm Resistor in a Circuit?

  • poopoo16
  • · Replies 9 ·
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9

Understanding Second Order Algorithms

  • schattenjaeger
  • · Replies 12 ·
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12

Max & Min Problem: Find Two Positive Numbers

  • scorpa
  • · Replies 6 ·
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6

How Does Aperture Size Affect Exposure Time in Photography?

  • sghaussi
  • · Replies 3 ·
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3

Can You Help Me Write a Math Poem in One Paragraph?

  • air_zxt
  • · Replies 8 ·
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8

How Does Object Distance Affect Image Position in Refraction Problems?

  • sghaussi
  • · Replies 2 ·
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2

Closest approach of two trains on perpendicular tracks

  • stunner5000pt
  • · Replies 2 ·
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2

Calculate Resolving Power of Microscope w/ 1.30cm Aperture

  • six789
  • · Replies 10 ·
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10

Ellipse Compression and Expansion

  • cocoavi
  • · Replies 2 ·
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2

Gravity & Weight: Calculate Total Mass & Weight on a Planet

  • ninjagowoowoo
  • · Replies 9 ·
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9

How Does Wavelength Affect Single Slit Diffraction Patterns?

  • six789
  • · Replies 20 ·
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20

Refraction of light at air/water interface

  • komal
  • · Replies 2 ·
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2

Ideal Gas HW: Volume of Bubble Rising to Surface

  • ibnuts
  • · Replies 28 ·
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28

Resolve Your Electromag Question with Expert Help - 3rd Year Undergrad Level

  • ApeXaviour
  • · Replies 2 ·
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2

Could Tunnel Construction on the Moon Solve Earth's Practical Problems?

  • UrbanXrisis
  • · Replies 3 ·
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3

Thermistors and potential divider circuits

  • goodall
  • · Replies 2 ·
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2

Testing Convergence: Comparison & Limit Comparison Tests

  • ProBasket
  • · Replies 3 ·
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3

Calculating Angular Momentum of an Aircraft Near Pittsburgh

  • tony873004
  • · Replies 2 ·
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2

Bernoulli's Principle of a pipe

  • APool555
  • · Replies 5 ·
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5

Solve 2^(2x)=8x for x: Detailed Solution

  • abia ubong
  • · Replies 13 ·
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13

Calculating Energy to Rotate Magnetic Dipole in Solenoid

  • dibilo
  • · Replies 2 ·
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2

Lab writeup, resonance & speed of sound

  • SphericalStrife
  • · Replies 2 ·
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2

How Does a Split Ring Commutator Enhance Motor Speed?

  • milkshake14
  • · Replies 2 ·
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2

Understanding Alternating EMF and Electric Field in Circular Plate Capacitors

  • bertholf07
  • · Replies 2 ·
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2

Left and Right Hand Rules - Physics

  • scorpa
  • · Replies 5 ·
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5

How Can Energy Be Used Without Performing Work?

  • znicolaou
  • · Replies 3 ·
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3

Calculating Impact Speed of Asteroid on Earth - Neglecting Atmospheric Friction

  • ninjagowoowoo
  • · Replies 2 ·
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2

Catapult/Seesaw Calculations, part 2?

  • Milchstrabe
  • · Replies 8 ·
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8
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5

Démontrer la Croissance de (Un+1) / Un

  • Sabine
  • · Replies 21 ·
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21

Resistance of Non-Conductors: Temperature Effects

  • AdmiralZ
  • · Replies 4 ·
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4

Another differentiation question.

  • monet A
  • · Replies 8 ·
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8

Finding the Correlation Between 6-Month Temperature and Crawling Age

  • leon1127
  • · Replies 2 ·
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2

Integrating Force: Derive Distance L for AP Question

  • aber
  • · Replies 4 ·
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4

How Do You Calculate the Damping Coefficient of a Pendulum?

  • Punchlinegirl
  • · Replies 2 ·
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2

Calculating Angular Velocity of 0.600 m Flywheel

  • masterthephysics
  • · Replies 16 ·
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16
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5

Is Distributing or Using FOIL Better for Expanding (5t-1)(25t^2+5t+1)?

  • thomas576
  • · Replies 4 ·
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4

Tricky inclusive numbersHomework

  • tae3001
  • · Replies 5 ·
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5

Conservation of angular momentum of a turntable

  • ~angel~
  • · Replies 9 ·
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9
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3

Solve Pendulum Problem: Indiana Jones Swinging at 17°

  • Punchlinegirl
  • · Replies 2 ·
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2

Solving the Rocket Egg Problem: Help Kyle Launch and Land!

  • explorien86
  • · Replies 8 ·
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8

What Are the Easiest Methods to Solve nPr=60 for n When r=3?

  • zenity
  • · Replies 2 ·
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2

Related rates, clarification sought

  • ktpr2
  • · Replies 2 ·
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2

Planar graphs with minimum degree

  • JaeSun
  • · Replies 2 ·
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2

Calculating Satellite Orbit Period: A Misstep

  • Punchlinegirl
  • · Replies 2 ·
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2

Prove that primes of the form 4n+1 are infinite

  • tamalkuila
  • · Replies 5 ·
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5

Laws or motions and a truck that won't move.

  • azertyq
  • · Replies 2 ·
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2

Help (Electrostatic/electric shock)

  • Josh123
  • · Replies 2 ·
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2

Solve Integral Function x | Help Appreciated

  • abia ubong
  • · Replies 2 ·
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2

Finding the Area of ABMN: A Geometry Problem

  • fork
  • · Replies 5 ·
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5

Grinding Wheel Motion: Angular Velocity and Acceleration

  • la673
  • · Replies 8 ·
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8

Finding d2y/dz2 for Calculating Derivatives with Variable Change

  • mattlorig
  • · Replies 2 ·
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2

Force Exerted by Table on Stick at Release

  • No Name Required
  • · Replies 27 ·
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27

Revolving Ball on String Problem

  • PhysicsinCalifornia
  • · Replies 8 ·
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8

Calculating Acceleration of a Yo-Yo Using Torque and Moment of Inertia

  • Liokh
  • · Replies 5 ·
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5

Prove that sin 1 > cos ( sin 1 )

  • maverick280857
  • · Replies 2 ·
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2

Understanding Photon Detection: Solving a Problem with Starlight

  • Reshma
  • · Replies 10 ·
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10

Rotational Dynamics disk of radius Question

  • Hoofbeat
  • · Replies 3 ·
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3

One SImple prob and another about resonance

  • ninjagowoowoo
  • · Replies 3 ·
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3

Gravity on mass on earth's surface vs sun-earth gravity

  • ninjagowoowoo
  • · Replies 2 ·
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2

How Do You Convert Molarity to PPM for Calcium Hardness in Pools?

  • dagg3r
  • · Replies 3 ·
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3

Solve for y: F(3) = 1/4; Integration: f(3) = 1/4; y = 1/(6x-x^2+13)

  • UrbanXrisis
  • · Replies 11 ·
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11

What Current Will Flow Through a Rescuer in an Electrical Accident?

  • jmandas
  • · Replies 2 ·
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2

Counting Combinations & Permutations with Repetition

  • Format
  • · Replies 2 ·
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2

Calculating Maximum Acceleration in Simple Harmonic Motion

  • Punchlinegirl
  • · Replies 3 ·
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3

Thermodynamics work required per unit mass problem

  • nineeyes
  • · Replies 2 ·
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2

Solve 2D Vectors Problem: Ferry Boat Crosses River

  • jen333
  • · Replies 4 ·
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4

Refresh my memory on centripital force/acceleration

  • benji
  • · Replies 2 ·
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2

Integration: Proof of Sine Powers Int. Formula

  • DivGradCurl
  • · Replies 2 ·
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2

What are the readings on the two connected spring scales?

  • erinnn
  • · Replies 2 ·
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2

Period of Oscillation for a Hoop of Mass 0.420 kg & Radius 0.130 m

  • squib
  • · Replies 5 ·
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5