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

How Do You Calculate the Angle in a Towing Scenario Using Work and Force?

  • nissanfreak
  • · Replies 7 ·
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7

Computer Architecture Practice Final Questions

  • JasonJo
  • · Replies 9 ·
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9

Acceleration Caused by some Forces on a Cart,

  • SpeeDFX
  • · Replies 7 ·
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7

Can I Factor Equations for Diff. Eq. Solving?

  • Beez
  • · Replies 3 ·
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3

How Does Running Two Heat Engines Affect the Second Law of Thermodynamics?

  • Erik Horwath
  • · Replies 2 ·
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2

Adiabatic expansion of argon gas

  • Erik Horwath
  • · Replies 4 ·
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4

F(t) = square root of 3t+2 / 4t-3

  • kim
  • · Replies 7 ·
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7

Calculus problemwork needed to produce a pile of sand

  • kagaku
  • · Replies 7 ·
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7

So, it looks like your method may be wrong.

  • Gtotheiles
  • · Replies 3 ·
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3

Autonomous differential equations

  • DivGradCurl
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2

How Is Spring Compression Calculated When a Mass Is Dropped on It?

  • John O' Meara
  • · Replies 2 ·
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2

What is the Constant Volume Specific Heat for Diatomic Gases?

  • melanie
  • · Replies 4 ·
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4

Period of oscillation for bounded motion in potential U(x)=-a/x+b/x²

  • danai_pa
  • · Replies 6 ·
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6

If you find the scalar potential of a conservative vector field

  • schattenjaeger
  • · Replies 4 ·
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4

Jane swinging across river on vine with horizontal wind force

  • njvc3
  • · Replies 6 ·
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6

Calculating Puck Speed After Collision

  • Swatch
  • · Replies 3 ·
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3

How Can I Solve These Math Problems for My Exam Tomorrow?

  • GrP
  • · Replies 2 ·
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2

How Does Beam Sag Affect Belt Tension in Metric Units?

  • Bando
  • · Replies 2 ·
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2

Calculating Work Due to Gravity on a Mars Spacecraft

  • ninjagowoowoo
  • · Replies 3 ·
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3

What went wrong in calculating the mass of planet Mongo?

  • ninjagowoowoo
  • · Replies 9 ·
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9

Stacking height of plastic bottles crates

  • chi
  • · Replies 2 ·
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2

How Does Horizontal Force Affect an Object's Vertical Velocity?

  • Eiano
  • · Replies 3 ·
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3

How to Solve Cx^3-2Ex+2k=0 Equation?

  • danai_pa
  • · Replies 3 ·
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3

Determining Linear Independence: Use Coordinate Vectors

  • Benny
  • · Replies 3 ·
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3

What is the speed of light in AU's per hour?

  • Struggling
  • · Replies 2 ·
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2
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20

Line tangent to an elipse given one point

  • thursdaytbs
  • · Replies 9 ·
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9

Why Can Human Eyes Only See Visible Light?

  • Spastik_Relativity
  • · Replies 5 ·
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5

Can x be expressed in terms of a?

  • wisredz
  • · Replies 5 ·
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5

Electric potential, Resistance , Capacitor

  • a_aziy
  • · Replies 2 ·
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2

Understanding Fluid Pressure: How Deep Can a Snorkeler Safely Dive?

  • physics noob
  • · Replies 4 ·
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4

Max speed on roller coaster at top of circular loop

  • physics noob
  • · Replies 2 ·
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2

How to calculate this determinate

  • jdstokes
  • · Replies 2 ·
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2

Quantum Mechanics, one-dimensional box problem

  • danai_pa
  • · Replies 3 ·
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3

Finding errors in two differential equations solutions

  • Beez
  • · Replies 2 ·
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2

How Does Heron's Ancient Steam Engine Calculate Angular Acceleration?

  • Phoenix314
  • · Replies 3 ·
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3
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13

Vector dynamics problems

  • glarredondo
  • · Replies 2 ·
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2

What generates what in Maxwell's equations?

  • tiagobt
  • · Replies 2 ·
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2

How can you use a substitution to solve a quartic equation?

  • stupidkid
  • · Replies 8 ·
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8

Q Find the curve whose polar subtangent is constant

  • himanshu121
  • · Replies 1 ·
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1

How Many Typing Orders Are Possible If Letter 8 Is Typed First?

  • Gtotheiles
  • · Replies 2 ·
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2

Why was defining the inch with barley grains both practical and flawed?

  • frozen7
  • · Replies 4 ·
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4

Finding satellite altitude from gravitational force and potential energy

  • ninjagowoowoo
  • · Replies 4 ·
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4

Understanding a Challenging Combinatorial Identity

  • Pietjuh
  • · Replies 2 ·
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2

Electric Field/Magnetic Field Questions

  • lightuplightup
  • · Replies 2 ·
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2

What Happens to Atom Speeds and Directions in an Elastic Collision?

  • John O' Meara
  • · Replies 2 ·
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2

Calculating Pressure in Two Connected Vessels

  • ice888
  • · Replies 4 ·
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4

Derivation of formula - electrons in an electric field

  • synthesized
  • · Replies 4 ·
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4

Calculate Your Speed after Elastic Collision on Ice in Buffalo

  • badman
  • · Replies 4 ·
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4

Is a Homogeneous System of Linear Equations Inconsistent When n Exceeds r?

  • jdstokes
  • · Replies 2 ·
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2

How Does Angular Velocity Change When a Girl Moves on a Rotating Turntable?

  • physics noob
  • · Replies 6 ·
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6

Is Every Eigenstate of L^2 an Eigenstate of Lz?

  • Henk
  • · Replies 4 ·
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4

Finding power needed for helicopter to reach 5500 m in 900s

  • seiferseph
  • · Replies 7 ·
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7

Finding xy from 3x+4y=7 and 2y=6x+6

  • staples82
  • · Replies 8 ·
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8

What is the Blood Pressure Difference in a Narrowed Artery Segment?

  • texasgrl05
  • · Replies 4 ·
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4

What Steps Can Solve the Frictional Force in a Banked Curve Problem?

  • HeatherH
  • · Replies 3 ·
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3

How Do You Derive the Q Value Equation for a Forced Harmonic Oscillator?

  • e(ho0n3
  • · Replies 10 ·
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10

Solving the Helicopter Problem - What is the Answer?

  • Viper2838
  • · Replies 4 ·
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4

Why Do Passengers Lurch Forward When a Car Brakes Suddenly?

  • stupidkid
  • · Replies 23 ·
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23

Elastic deformation of stacked copper and brass cylinders under compression

  • texasgrl05
  • · Replies 6 ·
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6

How to Convert Volume in Feet to Acre-Feet

  • Enos
  • · Replies 4 ·
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4

Simple rotation/elasticity problem

  • ninjagowoowoo
  • · Replies 7 ·
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7

Is Your C++ Character Range Check Correct?

  • gringo
  • · Replies 2 ·
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2

What Formulas Should I Use to Calculate the Speed of an Object Before Impact?

  • laker_gurl3
  • · Replies 4 ·
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4

Where Does a Bullet Strike a Target 200m Away?

  • frozen7
  • · Replies 9 ·
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9

Why do we use 60 seconds in a minute and minutes in an hour?

  • flesym_deredrum
  • · Replies 4 ·
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4

Dirac delta function properties with quadratic and product rules

  • danai_pa
  • · Replies 2 ·
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2

Solving cos 3x = sin 2x using complementary angles

  • misogynisticfeminist
  • · Replies 5 ·
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5

What Type of Reaction Occurs Between Propene and Br2 or HBr?

  • J_o_S
  • · Replies 12 ·
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12

Solve Bug Spiral Problem with Parametric Equations

  • anisotropic
  • · Replies 16 ·
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16

Work to pull a leaking bucket from an 80 ft well

  • JohnRV5.1
  • · Replies 2 ·
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2

Calculating Angular Speed of Amusement Park Ride

  • theNeonGod
  • · Replies 3 ·
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3
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2

Why Don't the Vectors (1,2,-5), (3,8,-19), and (1,-2,3) Span R^3?

  • Benny
  • · Replies 4 ·
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4

Proofs for recursive sets using induction

  • evanx
  • · Replies 2 ·
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2

Finding the gravitational force

  • nissanfreak
  • · Replies 2 ·
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2

Tension in hanging scaffold and ladder friction angle problems

  • Scirel
  • · Replies 7 ·
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7

Volume above cone φ = π/3 inside torus ρ = 4sin φ

  • eok20
  • · Replies 3 ·
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3

What Formulas Do I Need to Ace My Physics Test Tomorrow?

  • nissanfreak
  • · Replies 2 ·
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2

Is Ae^i(kx+ωt) an admissible wavefunction for a free particle?

  • danai_pa
  • · Replies 2 ·
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2
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9

Sphere colliding with plank: finding distance between impacts

  • naznad
  • · Replies 2 ·
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2

Linear first order differential equations - just a question

  • DivGradCurl
  • · Replies 2 ·
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2

Calculating electric field at a point due to 2 charges

  • mr_coffee
  • · Replies 4 ·
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4

What is the bulk modulus and how is it used in fluid statics problems?

  • TeTeC
  • · Replies 3 ·
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3

Can a radar detect a plastic object?

  • panthera
  • · Replies 4 ·
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4

Seesaw: simple statics problem?

  • ninjagowoowoo
  • · Replies 2 ·
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2

Sink and Sources in Fluid Mechanics: Attraction, Repulsion, and Vortices

  • Raparicio
  • · Replies 2 ·
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2

Unstable particle decay distance and muon energy at 15 degrees

  • panthera
  • · Replies 9 ·
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9

Unleashing the Power of a Mousetrap Engine: max Velocity of 50g Car

  • Craig113
  • · Replies 2 ·
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2

Separate Ag^+, Ca^2+, and Ni^2+ ions from a solution

  • howie222
  • · Replies 7 ·
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7

How to Find the Sum of Arctan Series?

  • Yegor
  • · Replies 24 ·
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24

How to integrate int (x^2 + 4)^(-1/2) dx Is it a substitution?

  • gordda
  • · Replies 2 ·
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2

Is v²=2ax dimensionally consistent?

  • tony873004
  • · Replies 2 ·
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2

Fluid Mechanics - Torque at hinge of closed vessel

  • Aerospace
  • · Replies 3 ·
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3

Percent Uncertainty in Volume of Spherical Beach Ball

  • Struggling
  • · Replies 4 ·
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4

Angular Acceleration of Solid Cylinder: Mass, Force, Time

  • melissa_y
  • · Replies 2 ·
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2

What system does this lagrangian represent?

  • Jamoo
  • · Replies 6 ·
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6
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7