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

Calculate the buoyant force exerted by the water on the sphere

  • MAPgirl23
  • · Replies 3 ·
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Calculating square feet of a tent/triangle

  • EvilMenace[2]Society
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2

Compressed reversibly and adiabatically problem

  • koomanchoo
  • · Replies 2 ·
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2

Elemental Chemistry: The Significance of Atomic Mass and Atomic Number

  • J_o_S
  • · Replies 9 ·
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9

How can I simplify inverse trig derivatives with fractions?

  • Struggling
  • · Replies 4 ·
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4

Vector Dynamics on an Inclined Plane

  • seiferseph
  • · Replies 4 ·
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4

Need help with a Mean Value Theorem Problem

  • wisredz
  • · Replies 8 ·
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8
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7

How Does Bath Oil Depth Affect Soap Buoyancy?

  • DDS
  • · Replies 33 ·
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Solve the Differential Equation: (1 - x^2) y'' - (4x) y' + (6) y = 0

  • VinnyCee
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2

Solving Physics Problem: Find Coefficient of Friction

  • Eiano
  • · Replies 4 ·
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4
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15

Finding Moment of Inertia for Rotated Solid: y=sinx, x-axis, [0,pi]

  • devious_
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2

A little help: Light & Optics Research paper

  • actingbiz1
  • · Replies 2 ·
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2

Can Anyone Help Review My Final Exam Problems?

  • Oxymoron
  • · Replies 7 ·
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7

Airplane magnitude and direction

  • jena
  • · Replies 2 ·
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2

Is the Subset S Open, Closed, or Neither in Various Complex Spaces?

  • Oxymoron
  • · Replies 6 ·
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6

What Is the Maximum Work Done and Thermal Efficiency of a Steam Plant?

  • steamer
  • · Replies 2 ·
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2

How Can I Solve These Linear Transformation Problems?

  • Mathman23
  • · Replies 13 ·
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13

Connecting with Other Participants in the International Talent Search

  • physics4ever
  • · Replies 2 ·
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2
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5

Circular Motion of a space station Problem

  • kye6338
  • · Replies 4 ·
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4

What is the shortest path from A to B on the beach?

  • punjabi_monster
  • · Replies 4 ·
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4

Given height, and velocity thrown upward, find air-time

  • bigman8424
  • · Replies 8 ·
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8

Friction Directions: What Makes Friction Uphill?

  • ascky
  • · Replies 6 ·
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6

When does Ax2 + Cy^2 + Dx + Ey + F = 0 represent a parabola

  • gillgill
  • · Replies 2 ·
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2
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2

Raising a 20m Ladder with Hydraulic Force: Calculating Magnitude at B

  • MAPgirl23
  • · Replies 13 ·
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13

Calculating Final Temperature with Aluminium and Ice

  • ~angel~
  • · Replies 2 ·
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2

Cathode ray tube(CRT) question

  • F|234K
  • · Replies 7 ·
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7

Speed of Tip Calc: Rotor Diam 7.6m, 450 rev/min

  • john_halcomb
  • · Replies 6 ·
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6

Solve Stone Thrown from 40m Tower at 60° Angle: Find Speed

  • badman
  • · Replies 12 ·
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12

: really quick simplifying radical question

  • xLaser
  • · Replies 13 ·
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13

Solving Mass Spectrometer Question: 24Mg & 25Mg Isotopes

  • scorpa
  • · Replies 2 ·
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2
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5

Struggling with Electromagnetics Problem in Cheng's Book?

  • ECE302
  • · Replies 2 ·
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2

Calculate Volume of Balloon to Lift 3670 kg Package

  • DDS
  • · Replies 9 ·
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9
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17

What Mistake Did I Make Solving This Quadratic Exponential Equation?

  • cscott
  • · Replies 10 ·
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10

How far does light go in a nanometer?

  • bigman8424
  • · Replies 3 ·
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3

Can You Prove Simple Harmonic Motion for a Mass Spring System?

  • repugno
  • · Replies 4 ·
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4

Calculating Gravity and Mass on Venus: Solve for the Sun's Mass

  • MAPgirl23
  • · Replies 9 ·
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9

Downward, find airtime, velocity

  • bigman8424
  • · Replies 3 ·
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3
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2

How much heat will be generated when a bullet hits a cart?

  • haki
  • · Replies 2 ·
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2

Measuring Spring Elongation in a Water-Filled Beaker

  • DDS
  • · Replies 17 ·
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17

Boiling & Freezing water at the same time?

  • futureteacher
  • · Replies 3 ·
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3

Wave Drag: Is it the Same as Fluid Resistance?

  • Raparicio
  • · Replies 4 ·
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4

Which Electrode is the Cathode in an Electrochemical Cell?

  • Mozart
  • · Replies 4 ·
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4

Difficult to understand a wave.

  • bibstha
  • · Replies 6 ·
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6

What are some challenging chemistry questions and how can they be solved?

  • ~angel~
  • · Replies 2 ·
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2

. Binomial Theorem Question/Help .

  • xLaser
  • · Replies 11 ·
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11
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2

What Happens if CuSO4 is Added Before Connecting the Power in Electroplating?

  • ms. confused
  • · Replies 3 ·
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3

Partial Implicit Differentiation

  • mattmns
  • · Replies 3 ·
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3

Solve Trick Questions: Frequency & Wavelengths

  • DDS
  • · Replies 22 ·
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22

How to Solve Physics Electromagnetism Problems

  • seiferseph
  • · Replies 4 ·
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4

Solving Equilibrium Constant: 2A(g)⇌B(g)+C(g)

  • jdstokes
  • · Replies 2 ·
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How Does Current Flow in a Direct Coupled Oscillator Circuit?

  • preet
  • · Replies 2 ·
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2

Balanced net ionic equation for redox reaction

  • LizziePearl
  • · Replies 2 ·
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2

Elegant Universe: Your Opinion?

  • Nevek
  • · Replies 6 ·
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6

Increasing the speed of an ac motor

  • HWeber
  • · Replies 2 ·
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2

Which class of levers is the most 'efficient'?

  • abbott.121
  • · Replies 2 ·
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2
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2
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4

Eigenvalue problem what am i doing wrong?

  • qqchico
  • · Replies 18 ·
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18

Parametric plot / I just need to check my work (quick)

  • DivGradCurl
  • · Replies 6 ·
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6

Display a number, on a single 7 segment LED display

  • MirrorM
  • · Replies 2 ·
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2

Having trouble figuring a problem out

  • frankfjf
  • · Replies 14 ·
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14

Computer Science Java Programming Help

  • JasonJo
  • · Replies 9 ·
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9

Solve Stones and Velocity: 18 m/s, 11m, 0.77 sec

  • jena
  • · Replies 2 ·
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2

Calculating Distance on a Rollercoaster Using Impulse Method

  • Frank_Horrigan
  • · Replies 5 ·
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5
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3

Solve SHM Eqn Problem: Max Energy Transformation

  • DDS
  • · Replies 65 ·
3
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65

Finding mechanical and thermal energy of a pendulum from photogate data

  • homeslice
  • · Replies 5 ·
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5

Finding object density from buoyancy in water and oil

  • DDS
  • · Replies 2 ·
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2

Are the Paths of Reparameterized Functions Identical?

  • jessawells
  • · Replies 5 ·
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5
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2

Calculate Depth of Floating Instrument: 0.219 kg in Water

  • DDS
  • · Replies 2 ·
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2

Can You Calculate the Mass of a Water Molecule Using Avogadro's Number?

  • Kamataat
  • · Replies 7 ·
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7

Easy speasy but i dont get it.

  • shimmeringlight
  • · Replies 7 ·
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7

Calculating Upward Contact Forces of Uniform Ladder

  • m3trj
  • · Replies 2 ·
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2

Advantages & Disadvantages of Connecting Cells in Parallel

  • DeathKnight
  • · Replies 1 ·
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1

How many bounces until the ball reaches a height less than 15cm?

  • ms. confused
  • · Replies 20 ·
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20

Trouble Drawing Diagram: 10 A Current North, 42° East Magnetic Field

  • usfz28
  • · Replies 2 ·
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2

Optimization - maximize the sum of distances to the power alpha

  • vladimir69
  • · Replies 2 ·
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2

Calculating Speed of 4kg Block using Energy Methods

  • kitz
  • · Replies 6 ·
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6

How Can Gamma Spectra Reveal Elements in Rocks?

  • muralee
  • · Replies 2 ·
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2
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9
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6

How Is the Force Between Two Electrons Calculated at a One Meter Distance?

  • Aprilshowers
  • · Replies 8 ·
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8

Calculating Volume Displaced for Sinking Objects

  • michaelw
  • · Replies 7 ·
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7

Moment of Inertia of a particle

  • verd
  • · Replies 22 ·
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22

Understanding X-Ray Spectra Graphs

  • Snowy
  • · Replies 4 ·
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4

Measuring Spheres: How to Use the Formula (4/3 π r3)

  • cubed
  • · Replies 4 ·
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4

Calculus N00b: Find the Second Derivative

  • gschjetne
  • · Replies 5 ·
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5

Decomposing B_{ij} into Symmetric and Antisymmetric Tensors

  • JohanL
  • · Replies 2 ·
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2

Solve for -3/(2t^-2) - 2t + 7/2

  • laker_gurl3
  • · Replies 2 ·
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2
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1