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

X/y intercept for translations of f(x)

  • roger
  • · Replies 2 ·
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2

Speed, acceleration and force for 600kg aeroplane taking off

  • Turkish
  • · Replies 5 ·
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5

Normal force on a hoop from a sliding mass at 36 degrees

  • pulau_tiga
  • · Replies 6 ·
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6

Work done by friction on three different paths

  • tony873004
  • · Replies 3 ·
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3
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3

How Do You Solve Difficult Engineering Statics Problems?

  • ODU
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2

Solving Oscillary Motion: Half Max Speed at 2.25 cm Amplitude

  • Cyrad2
  • · Replies 3 ·
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3

How Do Canoeists A and B Coordinate Their Arrival Using Relative Motion?

  • grace lotz
  • · Replies 2 ·
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2

Solving a Java Program that Prints Prime Factors of Numbers

  • ek
  • · Replies 1 ·
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1

What is the Sound Intensity at 7.1 Meters?

  • yankeesfan08
  • · Replies 2 ·
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2

How Fast Must a Golf Ball Travel to Avoid a Windmill Blade?

  • NotaPhysicsMan
  • · Replies 12 ·
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12

Maximum height of a uniform vertical column

  • physicsss
  • · Replies 2 ·
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2

Triangle Formula: Isocolese Angle Measurements

  • IndyAndy
  • · Replies 2 ·
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2

Conservation of Energy and satellite

  • phy
  • · Replies 4 ·
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4

Changes in Mechanical Energy for Nonconservative Forces

  • Bri
  • · Replies 9 ·
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9

Accelerating an electron through a pot. diff.

  • Romperstomper
  • · Replies 2 ·
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2

Calculating Linear Acceleration on a Rotating Record

  • jenavira
  • · Replies 2 ·
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2

The moment of inertia of the stool with respect to an axis at its center?

  • chattkis3
  • · Replies 7 ·
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7

Help with proportion problems: earnings, picture enlargement, and fractions

  • simplywrite
  • · Replies 6 ·
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6

Work done by air resistance on a basketball shot

  • Bcisewski
  • · Replies 2 ·
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2

How Does Total Variation Relate to the Integral of the Absolute Derivative?

  • fourier jr
  • · Replies 2 ·
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2
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3

Equilibrium and tension problem

  • FarazAli
  • · Replies 2 ·
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2

Why Does Oil Appear Red on Water at Certain Thicknesses?

  • GreenDinos
  • · Replies 2 ·
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2

Will Fusion Reactors Power the Next Millennium?

  • verochio
  • · Replies 2 ·
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2

Why does a mass on a spring oscillate?

  • saltrock
  • · Replies 2 ·
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2

Static Equilibrium of a building

  • physicsss
  • · Replies 3 ·
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3

Magnitude and direction question

  • Peacehomes
  • · Replies 2 ·
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2

Finding mechanical energy and force from potential energy u(x)=-4xe^(-x/4)

  • hauthuong
  • · Replies 2 ·
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2

Velocity of 0.5kg mass at spring equilibrium at 3Hz with 0.15m amplitude

  • compute_a_nerd
  • · Replies 7 ·
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7

Finding the Error in Calculating ε

  • Yegor
  • · Replies 3 ·
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3

Taylor Series/Radius of Convergence - I just need a hint

  • DivGradCurl
  • · Replies 3 ·
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3

Find Limit of (x^2+1)/(x^2-4x+3) as x->3

  • Seldini
  • · Replies 6 ·
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6

Where Does a Charged Sphere's Potential Equal a Point Charge's?

  • snke_eyes
  • · Replies 2 ·
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2

Calculating Error in Energy Measurement with Scintillation Counter

  • retupmoc
  • · Replies 2 ·
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2

CLUELESS about a Maclaurin series

  • DivGradCurl
  • · Replies 7 ·
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7

How Do I Calculate a Figure Skater's Final Moment of Inertia?

  • Angie913
  • · Replies 3 ·
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3

How Is the Moment of Inertia Calculated for a Spherical Shell?

  • Lyuokdea
  • · Replies 2 ·
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2

Pulling a Tablecloth from Under a Steel Ball

  • GingerBread27
  • · Replies 6 ·
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6

Moment of inertie of rotor blaes of a helicopter

  • SnowOwl18
  • · Replies 8 ·
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8

How can I calculate the escape velocity of a projectile from a planet's surface?

  • CollectiveRocker
  • · Replies 10 ·
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10

How do I generate a random math addition question in Java?

  • xLaser
  • · Replies 4 ·
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4

Why didn't Bernoulli's equation work for other values of water height?

  • CollectiveRocker
  • · Replies 5 ·
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5

Why does doubling the mass on a spring quadruple the potential energy?

  • Gfoxboy
  • · Replies 14 ·
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14

Net charge, electric force, and electric field homework problems

  • Mild
  • · Replies 2 ·
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2

Draw Acceleration Vectors for Constant Velocity Diagram

  • UrbanXrisis
  • · Replies 3 ·
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3

River Crossing: Solving for Time with Jon's Boat Speed and River Current

  • cubs1908
  • · Replies 4 ·
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4

Is gravity the source of Earth's centripetal force?

  • UrbanXrisis
  • · Replies 4 ·
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4

PHysics PHysics Physics Physics Torque

  • envscigrl
  • · Replies 2 ·
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2

Electric field strength to support an electron and proton acceleration

  • fishboy39
  • · Replies 2 ·
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2

Integral of 1/(1+cos x) from 0 to π/2

  • Leaping antalope
  • · Replies 9 ·
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9

Direction of velocity change from decreasing speed

  • UrbanXrisis
  • · Replies 3 ·
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3

Solving Blocks and Springs on a 15m Ledge: Energy, Velocity, Distance

  • Soaring Crane
  • · Replies 2 ·
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2

Hi, quick problem regarding emission of gamma ray.

  • teclo
  • · Replies 4 ·
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4

Equation of the plane equidistant from two points

  • sonya
  • · Replies 2 ·
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2

Coefficient of static friction from car skidding on circular track

  • Double A
  • · Replies 9 ·
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9
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8

Photons entering the eye from an LED at 0.20 m

  • saltrock
  • · Replies 4 ·
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4

How Do You Solve Exponents Like X^3 + X^5 = 0?

  • nightanole
  • · Replies 5 ·
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5

Autotransformer with 240V source and 500:1 turn ratio

  • radjan
  • · Replies 2 ·
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2

Speed of Ball Attached to Horizontal Cord

  • Soaring Crane
  • · Replies 2 ·
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2

Calculate Normal Force Exerted on Hands During Push-Ups

  • SnowOwl18
  • · Replies 4 ·
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4

How Can Radial Acceleration Equal 9.810 m/s² at a Specific Time?

  • dudgey
  • · Replies 2 ·
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2

Find the frequency of a voltage generator

  • JamesL
  • · Replies 2 ·
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2

Calculating Maximum Safe Depth for Submarine Windows

  • Spectre5
  • · Replies 10 ·
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10

What is the optimal angle for minimizing work on an inclined plane?

  • tricky_tick
  • · Replies 2 ·
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2

Conservation of momentum cannon problem

  • gaborfk
  • · Replies 3 ·
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3

No Physics Tutor Today so I'm Desperate

  • rooster_17
  • · Replies 3 ·
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3

How to read multiple floating point numbers into an array in C

  • tandoorichicken
  • · Replies 2 ·
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2

Normal distribution call centre wait times above 30 seconds

  • xargon
  • · Replies 2 ·
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2

Rate of change of distance from home plate in baseball diamond

  • Shay10825
  • · Replies 2 ·
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2

Questions about simple pendulum

  • buffgilville
  • · Replies 2 ·
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2

Calculating the Landing Positions of Two Cubes on a Frictionless Incline

  • Maskkkk
  • · Replies 10 ·
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10
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2

Finding the Minimum Frictional Force for a Ladder in Equilibrium

  • Coldie
  • · Replies 5 ·
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5

Solving Physics Lab Report Questions

  • SpatialVacancy
  • · Replies 3 ·
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3

How Fast is the Skier Traveling Before Landing?

  • benji
  • · Replies 3 ·
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3

Convergence of a Series with the Ratio Test

  • Alem2000
  • · Replies 4 ·
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4

What angle does the vector angular momentum make with the axle

  • rykirk
  • · Replies 2 ·
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2

Work done on a ball moving in a horizontal circle at constant speed

  • PhysicsNovice
  • · Replies 14 ·
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14

Understanding Diode Output Waveform Reversal

  • student1938
  • · Replies 3 ·
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3

Calculating Distance from Center of Earth to Point with 0.50g Acceleration

  • envscigrl
  • · Replies 3 ·
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3

What was the average velocity and speed of the car?

  • wogdogg
  • · Replies 3 ·
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3

Calculating Net Force on an Object Moving Up an Incline

  • Format
  • · Replies 7 ·
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7

What angle should movers set their truck ramp to minimize work?

  • tricky_tick
  • · Replies 2 ·
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2

What is the work done against the spring force in joules?

  • smile97
  • · Replies 2 ·
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2

Static friction limits for object on rotating turntable at 33 1/3 and 45 rpm

  • Flinthill84
  • · Replies 11 ·
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11

Wave Amplitude and Knot Movement

  • Hughey85
  • · Replies 3 ·
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3

What Is the Acceleration of Two Blocks on Inclined Planes?

  • jhson114
  • · Replies 2 ·
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2

Making Glucose vs. Breaking Glucose

  • Mk
  • · Replies 4 ·
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4

Solving a Puzzling Momentum Problem

  • Canuck156
  • · Replies 5 ·
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5

Understanding Rf Values for BIO Lab

  • xLaser
  • · Replies 3 ·
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3
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2

Can't figure it out.(Force of tension)

  • stealthking
  • · Replies 4 ·
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4

Atwood machine with 9kg and 6kg masses

  • UrbanXrisis
  • · Replies 7 ·
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7

Solving Integral for Falling Ball in Shampoo: dv/v

  • UrbanXrisis
  • · Replies 4 ·
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4
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3

Calculating Time to Complete 10,000 m Run in 30 Minutes

  • miscellaneous
  • · Replies 6 ·
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6

Statistics: The W's of US Death Estimate (2005-2050)

  • Shay10825
  • · Replies 5 ·
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5

Time to lift car with 250-W hydraulic jack

  • sp00ky
  • · Replies 2 ·
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2