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

Nuclear physics Pions and Parity?

  • Davorak
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What Values of b Satisfy the Inequality 1296(b^3) - 324(b^2) - 1008b + 108 > 0?

  • lokisapocalypse
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2

Finding Light Shifting Distance: An Exercise in Refraction

  • Bri
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3
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3

Spherical capicator w/ dielectric

  • genxhis
  • · Replies 2 ·
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2

How can I measure altitude from a pendulum's period?

  • sebasalekhine7
  • · Replies 5 ·
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5

How Do I Solve This Initial Value Problem Using a Given Solution Function?

  • BlkDaemon
  • · Replies 2 ·
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2

Proving Convergence of a Sequence with Upper Bound of 2

  • lokisapocalypse
  • · Replies 7 ·
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7
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Finding error in circuit analysis solution

  • Sanosuke Sagara
  • · Replies 2 ·
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2

Integrating 4/(e^x - 2)^2

  • pnazari
  • · Replies 2 ·
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2

Gravity waves on the moon and detecting a liquid core

  • furtivefelon
  • · Replies 2 ·
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2

Solving inequality with absolute values |3x-2|<=x+1

  • gillgill
  • · Replies 14 ·
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14

Positive Slopes: Satisfying the Logic

  • ktpr2
  • · Replies 2 ·
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2

Solve Gauss's Law: Electric Flux Through Sphere from Line Charge

  • sisigsarap
  • · Replies 4 ·
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4

Finding the Minimum Strength of a Fishing Line to Stop a Drifting Fish

  • j_confused
  • · Replies 6 ·
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6

Physics Experiment Question; Projectile Motion

  • rumaithya
  • · Replies 4 ·
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4

Kinetic energy of electrons/protons

  • thisisfudd
  • · Replies 7 ·
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7

How Do You Add Two Phasors to Find Resultant Amplitude and Phase?

  • Exulus
  • · Replies 17 ·
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17

How Do You Calculate the Total Charge from a Sine Wave Current?

  • Kawrae
  • · Replies 3 ·
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3

Is My Solution to \int \frac {e^x+4}{e^x}dx Correct?

  • UrbanXrisis
  • · Replies 9 ·
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9

Which method is the most efficient for factoring polynomials?

  • gillgill
  • · Replies 2 ·
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2

Second Nodal Line: Wave Length Approximation

  • Spyder22
  • · Replies 2 ·
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2

Why rounding 5 × 5 to 30 based on significant figures fails

  • tony873004
  • · Replies 15 ·
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15

Convolution - Can someone explain this solution?

  • Lomion
  • · Replies 2 ·
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2

Symmetries in Particle Physicsconservation laws

  • JamesJames
  • · Replies 3 ·
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3

What Did I Do Wrong in My Physics Homework Problem?

  • shawonna23
  • · Replies 2 ·
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2

Find max/min within what we've been taught?

  • ktpr2
  • · Replies 5 ·
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5

Another try at a difficult proof

  • sebasalekhine7
  • · Replies 12 ·
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12

Distribution of charge question

  • thisisfudd
  • · Replies 2 ·
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2

How Can I Build a Self-Operating Miniature Submarine?

  • SilentAssassin2005
  • · Replies 2 ·
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2

Reaction Products of Ethylene with Fluorine Gas

  • tandoorichicken
  • · Replies 2 ·
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2

How to Solve Integrals with a Linear Denominator?

  • briton
  • · Replies 4 ·
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4

How Does a Prism Affect the Angle Between Two Emerging Light Rays?

  • Twigs
  • · Replies 8 ·
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8

Current density and current from electron drift speed in gold wire

  • kyang002
  • · Replies 2 ·
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2

How do partial derivatives relate to the definition of a derivative?

  • courtrigrad
  • · Replies 5 ·
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5
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2

What is the Correct Integral Value for Divergent or Convergent?

  • ProBasket
  • · Replies 2 ·
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2
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4

Statistical physics/Thermodynamical question

  • danja347
  • · Replies 2 ·
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2
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Stats regression problem, need hlep QUICK

  • aisha
  • · Replies 2 ·
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2

Redrawing a circuit to identify parallel and series components

  • LakeMountD
  • · Replies 5 ·
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5

What Happens to the Charge When Two Insulated Spheres Touch?

  • maccaman
  • · Replies 2 ·
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2

Minimum mirror height to see full body reflection

  • nemzy
  • · Replies 2 ·
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2

Translation and compression/expansion

  • gillgill
  • · Replies 5 ·
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5

What is the Sum of Two Irrational Numbers?

  • CollectiveRocker
  • · Replies 6 ·
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6

Humber Marketing Tests New Sales Strategy: Stratified Sampling

  • aisha
  • · Replies 2 ·
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2

Potential difference between plates in a B-Field?

  • thursdaytbs
  • · Replies 8 ·
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8

How Do You Combine Two Equations in Mathematics?

  • the_d
  • · Replies 8 ·
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8

Calculating Diver Velocity and Maximum Height in a 3.0m Board Dive

  • shawonna23
  • · Replies 4 ·
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4
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2

Final temperature when mixing water, aluminum and copper

  • Bri
  • · Replies 2 ·
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2

Charge on capacitors in parallel and series

  • LakeMountD
  • · Replies 2 ·
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2

What is the molarity of 29.25 g of NaCl in 700mL of solution?

  • DB
  • · Replies 7 ·
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7

Uniform Acceleration: Calculating Distance and Speed of a Moving Car

  • mugzieee
  • · Replies 4 ·
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4

Determine the magnitude of the angular acceleration of the discus

  • UrbanXrisis
  • · Replies 2 ·
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2

The apparent weight of an astronaut in space if

  • F|234K
  • · Replies 9 ·
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9

How Do Electric Fields Interact in an Equilateral Triangle Setup?

  • Kawrae
  • · Replies 2 ·
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2

Solving for Potential in an Incompressible Self-Gravitating Fluid Slab

  • secret2
  • · Replies 6 ·
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6

How Many Potassium Ions Pass Through a 0.30-nm Channel in 1.0 ms?

  • kyang002
  • · Replies 2 ·
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2

What is the density of free electrons in the metal?

  • kyang002
  • · Replies 2 ·
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2

Conceptual Question (Rotational Kinematics)

  • Dmt669
  • · Replies 2 ·
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2

Schmitt Trigger - Astable Mutivibrator Op-amps

  • logicalman
  • · Replies 7 ·
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7

Solving Two-Dimensional Motion Problems on Physics HW

  • shedmyshadow
  • · Replies 2 ·
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2

Calculating Potential at a Point Due to Multiple Point Charges

  • thisisfudd
  • · Replies 2 ·
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2

Physics: Friction Coefficient Calculation

  • oldunion
  • · Replies 3 ·
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3

How Is the Angle of Deviation Calculated in a Wollaston Prism?

  • amph1bius
  • · Replies 2 ·
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2

Understanding Rotational Motion Problems

  • darkys
  • · Replies 3 ·
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3

Calculating Net Displacement Vector for Sparky's Run Using Law of Cosines

  • mugzieee
  • · Replies 3 ·
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3

Displacement current and magnetic field in a charging capacitor

  • andrew410
  • · Replies 2 ·
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2

How to Construct DFA and NFA for Languages Divisible by 6 or 10?

  • logicalman
  • · Replies 2 ·
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2

Solve Electric Field: Find Electron Speed

  • jbot2222
  • · Replies 2 ·
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2

Calculating Simple Pendulum Oscillation in a Moving Vehicle

  • Nima
  • · Replies 5 ·
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5

How Can You Arrange 9 Books on a Shelf with Labels Separated?

  • recon
  • · Replies 9 ·
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9

Find f(x): SolutionSolve Functional Equation: f(x)

  • spacetime
  • · Replies 2 ·
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2

Physics Equations, Terms, Units - Website List

  • Apowerfulfoe
  • · Replies 2 ·
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2

Magnetic field from current-carrying wire with circular bend

  • andrew410
  • · Replies 2 ·
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2

Magnetic field from a current loop using Biot-Savart law

  • andrew410
  • · Replies 3 ·
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3

How Did the Vietnam War Influence Perceptions of Communism?

  • Dooga Blackrazor
  • · Replies 6 ·
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6
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2

Calculate Scalar Product for Vectors M and N in Cartesian XY System

  • runner1738
  • · Replies 12 ·
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12

Vector Components and Flight Paths

  • runner1738
  • · Replies 4 ·
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4

Electric field from rectangular charge distribution

  • formulajoe
  • · Replies 14 ·
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14
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3

[Physical Science:] Finding Kinetic Energy

  • Jessi
  • · Replies 4 ·
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4

Average speed that you observe for the button as it falls

  • ProBasket
  • · Replies 3 ·
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3

Solving Water Stream Problem: Height of Wall Impacted

  • ProBasket
  • · Replies 14 ·
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14

Understanding Partial Differentiation with Polar Coordinates

  • tandoorichicken
  • · Replies 5 ·
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5

Finding Final Velocity with Constant Acceleration

  • the_d
  • · Replies 13 ·
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13
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3

Finding the coefficient of kinetic friction?

  • xelda
  • · Replies 6 ·
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6

How does the Earth's negative charge affect our planet?

  • leolaw
  • · Replies 2 ·
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2

What Was the Rocket's Initial Velocity?

  • Demise
  • · Replies 2 ·
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2

Finding the x component of C from A - B + 3C = 0

  • the_d
  • · Replies 3 ·
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3

Resultant Vector for Two 66m Magnitude Vectors

  • the_d
  • · Replies 16 ·
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16

Semi Latus Rectum Proof - b^2/a

  • sportsguy3675
  • · Replies 5 ·
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5

Converting Planck's law from frequency to wavelength

  • dranger35
  • · Replies 2 ·
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2

Finding required average speed for last two laps when average is constrained

  • majinknight
  • · Replies 8 ·
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8
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3