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

Finding the coordinates and distance of this drawing

  • mr_coffee
  • · Replies 4 ·
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4

Verify Divergence Theorem for Q with G(x,y,z) in $\Re^3$

  • Tony11235
  • · Replies 6 ·
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6

Find Charge on Ball in Electric Field: Solve Problem

  • U154756
  • · Replies 2 ·
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2

How Do You Find a Plane Orthogonal to a Given Line?

  • Whatupdoc
  • · Replies 3 ·
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3
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5

Find the sum of the vectors u and v if theta is the angle between them

  • DevilTemptations
  • · Replies 3 ·
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3

Verifying Arc Length of Vector: <2e^t, e^-t, 2t>

  • Giuseppe
  • · Replies 1 ·
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1

What is the Energy Transfer in a Copper-Water System?

  • love_joyously
  • · Replies 2 ·
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2

Calculating Acceleration and Displacement in 1D Motion

  • SarahV
  • · Replies 4 ·
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4

Planes Calculation Help: Find Point of Intersection with Coordinate Planes

  • Whatupdoc
  • · Replies 3 ·
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3

Maximum Height of Dropped Package in Helicopter Accident: 1279 meters

  • Lucretius
  • · Replies 6 ·
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6
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5

Complex analysis- Oscillation/vibration class

  • SteveDB
  • · Replies 5 ·
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5

Jill's Sprint After Shopping Cart: Physics Kinematics

  • oldunion
  • · Replies 3 ·
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3

Fermi Style Estimation Question

  • Spitfire-Adam
  • · Replies 8 ·
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8

Check my answer please (factoring)

  • mlowery
  • · Replies 2 ·
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2

Two objects travelling on a parallel plane

  • AaronL
  • · Replies 13 ·
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13

Solving a Basic Physics Problem: Helping the Lost and Confused!

  • xxQueenie47xx
  • · Replies 12 ·
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12

Calculate Resultant Force on Positive Charge in Rectangle with 4 Charges

  • confused1
  • · Replies 1 ·
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1

How heavy would you be on neuron star

  • Neutrino00
  • · Replies 1 ·
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1

How Does Mercury Affect the Air Column Length in a Sealed Cylinder?

  • shaiqbashir
  • · Replies 7 ·
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7

Unit Conversion ad Significant Figures

  • Soaring Crane
  • · Replies 1 ·
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1

E-K Diagrams, valence band, conduction band

  • metroplex
  • · Replies 14 ·
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14

Acceleration (short question, but not so simple)

  • Erik_at_DTU
  • · Replies 12 ·
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12

Calculating the Angle of a Perfect Circle: A Simple Formula

  • golith
  • · Replies 12 ·
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12

Prove the Square Root of 2 is irrational

  • njkid
  • · Replies 4 ·
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4

Endomorphism Ring: Proving f(R) = E

  • Pietjuh
  • · Replies 1 ·
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1

Calculating Resultant Force Vectors in a 2D System

  • ranger
  • · Replies 5 ·
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5

Thermodynamics question i dont get

  • ice87
  • · Replies 3 ·
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3

How Can You Calculate Daily Water Loss in a Heated Indoor Spa?

  • Dan Shenk
  • · Replies 1 ·
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1

Product Notation: Expressing Prod_{n=1}^k a_i

  • 1+1=1
  • · Replies 2 ·
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2

Griffitsh electrostatics problem

  • Brad Barker
  • · Replies 13 ·
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13

Prooving Euler's Formula: Seeking Direction & Advice

  • teclo
  • · Replies 5 ·
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5

Proof by Induction: Understanding D/dx Formula

  • sony
  • · Replies 4 ·
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4

How Do Earth's Poles Affect Electron and Proton Distribution Forces?

  • gmuniz
  • · Replies 2 ·
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2
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4
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2

Oscillations of a Piston in a cylinder containing a trapped gas

  • Varak
  • · Replies 1 ·
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1

My son is having difficulty with a problem.

  • Thermal
  • · Replies 4 ·
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4

Organic Chemistry: PhenylEthene Solidifies when Exposed to Air

  • Oerg
  • · Replies 3 ·
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3

Proof of Uncountable Domain for f:A-->B

  • happyg1
  • · Replies 9 ·
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9

Proving Divisibility by 3 for $\mathbb{Z}^{+}$ Sets

  • bomba923
  • · Replies 5 ·
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5

Solving Relative Position Problem: Velocity of Boat w.r.t Water

  • brad sue
  • · Replies 1 ·
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1
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3

What would be the energy eigenvalues of this particle?

  • FUNKER
  • · Replies 2 ·
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2
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3

Simple Elevator Ball Physics Problem

  • Grandmas
  • · Replies 2 ·
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2

Conservation of Energy: Proving the Relation ((mdx^2)/(dt^2))=F(x)

  • belleamie
  • · Replies 1 ·
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1

Kenetics problems no clue how to slove can someone help?

  • dparent
  • · Replies 9 ·
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9

Work-Energy Theorem: Find Final Speed of Ship

  • PhysicsDud
  • · Replies 3 ·
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3

Solving the Mystery of the 3 Girls' Ages

  • njkid
  • · Replies 7 ·
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7

Determine the empirical formula of the compound

  • Atomos
  • · Replies 2 ·
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2

Oscillation question: dealing with a maximum velocity

  • insertnamehere
  • · Replies 1 ·
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1

Just want to understant(Diff EQ)

  • karen03grae
  • · Replies 4 ·
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4

Totally Lost (Free Fall Distance)

  • physicsvirgin
  • · Replies 2 ·
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2

Understanding Conventional vs Electron Flow in Node Voltage Analysis

  • LocationX
  • · Replies 7 ·
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7

Find "n" Using Logarithm: Solve y=kx^n

  • DB
  • · Replies 14 ·
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14

How to find the distance of this vector? did i draw it right?>

  • mr_coffee
  • · Replies 1 ·
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1

Maximizing Potential: Solving for a in a Function with Two Particle Charges

  • the-rocketman
  • · Replies 6 ·
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6

Trouble with Two Physics Problems: Speed of Sound and Acceleration

  • cscott
  • · Replies 5 ·
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5

Resolution of Components Problem

  • caddyguy109
  • · Replies 15 ·
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15

Max Curvature Points on y=ex & xy=1 - Help Needed!

  • Giuseppe
  • · Replies 2 ·
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2
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1
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1

Simplifying Surds: Adding and Subtracting

  • V-Tec
  • · Replies 1 ·
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1

Is there a connection between ice cream and evolution?

  • maxpayne_lhp
  • · Replies 1 ·
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1

Questions concerning cross products, dot products, and polar coordinates

  • don_anon25
  • · Replies 1 ·
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1

Physics Homework: Car & Rocket Motion Analysis

  • kbbate9850
  • · Replies 2 ·
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2

[calculus] Continuity of partial derivatives

  • Ahmes
  • · Replies 3 ·
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3

How Much Does a Plumb Bob Deviate at 40 Degrees North Latitude?

  • tubworld
  • · Replies 3 ·
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3

Question about probability measure

  • Alexsandro
  • · Replies 4 ·
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4

Determine the power per unit area arriving at the Earth

  • physicsss
  • · Replies 4 ·
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4

Integrating Trig: Solving Definite Integrals with Sin and Cos

  • MathGnome
  • · Replies 3 ·
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3

2 Problems regarding Gauss's Law

  • echau
  • · Replies 6 ·
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6

Combining Probability Measures: A Concrete Illustration and Proof"

  • Alexsandro
  • · Replies 4 ·
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4

Solve Seebeck Voltage Conversion to Temperature Issues in Colorado

  • physicsCU
  • · Replies 9 ·
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9

Where Can I Study Peskin and Schroeder? | Physics Forums

  • Neitrino
  • · Replies 4 ·
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4

Where Did I Go Wrong? Troubleshooting a Commutator Relation

  • Spinny
  • · Replies 5 ·
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5

How do I Calculate Derived Dimensions from Fundamental Units?

  • Noxman
  • · Replies 5 ·
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5

How Does Causality Emerge in Quantum Field Theory Expressions?

  • Neitrino
  • · Replies 2 ·
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2
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4
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1

Solving Algebraic Fractions: 6x^2+5x-6 & 3x^2-4x-4

  • aricho
  • · Replies 11 ·
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11

How do rationalise {(plusminus)2(sqrt)2/(sqrt)3}

  • aricho
  • · Replies 8 ·
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8

Surface area of a sphere problem

  • devildog6289
  • · Replies 3 ·
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3

What is the indefinate integral

  • sora4ever1
  • · Replies 5 ·
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5

What is the electric field above a uniformly charged cylinder?

  • matpo39
  • · Replies 4 ·
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4

Simple harmonic movement problem

  • Cyannaca
  • · Replies 5 ·
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5

Calculating Velocity in Free Fall from a Given Height

  • kevinlikesphysics
  • · Replies 2 ·
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2

Find the thickness of Aluminium Foil

  • Turvey
  • · Replies 6 ·
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6
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8

How Do You Calculate Friction and Normal Force on an Incline?

  • Naeem
  • · Replies 8 ·
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8

Fun hw question I can't seem to get

  • rocketboy
  • · Replies 1 ·
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1

Motion and Average Acceleration -Help-

  • febreze
  • · Replies 1 ·
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1

Solving Problems in Calculus: Integrals and Work

  • Shay10825
  • · Replies 9 ·
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9
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6

Double checking charges and electrical field problems

  • mr_coffee
  • · Replies 16 ·
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16

Air Resistance & Horizontal Distance

  • BravestIntent
  • · Replies 1 ·
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1

How Does Understanding Complex Analysis Basics Help Solve Problems?

  • belleamie
  • · Replies 7 ·
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7

Calculating Average Speed: A Problem-Solving Dilemma

  • physicsvirgin
  • · Replies 4 ·
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4