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

Find out the velocity and time

  • bcdecimator
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2

Find the Min. Balloon Diam. for a 269kg Lift

  • BuBbLeS01
  • · Replies 10 ·
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10

Help with Force Problems | Tension & Acceleration

  • Zhadows
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2
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5
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5

Calculating Work Done on a 16kg Crate by Force and Weight

  • perfect_piccolo
  • · Replies 2 ·
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2

Solving a Differential Problem with Chain Rule

  • Hakins90
  • · Replies 3 ·
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3

What is the voltage? AC circuit

  • Xaspire88
  • · Replies 2 ·
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2

Vectors forming a parallelogram

  • shiri
  • · Replies 1 ·
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1

Solving General Questions: F, CG, I, Torque, Acceleration

  • srose9625
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2

Ideal Gas Law: Calculating Pressure and Moles of Helium Gas

  • map7s
  • · Replies 2 ·
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2

Calculating Projectile Motion: How Changing Force Affects Arrow Speed

  • EasyQuestion
  • · Replies 5 ·
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5

Compare the efficiency of two cars.

  • weasel
  • · Replies 1 ·
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1

Determine the average force that the water exerts on the diver

  • pdubb
  • · Replies 4 ·
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4

Kinetic energy and rigid bodies

  • Niles
  • · Replies 2 ·
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2

Sheer stress due to a hole puncher

  • maxxed
  • · Replies 5 ·
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5

How Does Amplitude Change After Multiple Oscillations?

  • yo_man
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1

Resonace frecuency and peak current

  • Xaspire88
  • · Replies 2 ·
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2

Friction Forces: Maximum Intensity & Acceleration

  • badbit
  • · Replies 2 ·
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2

Coulombs law and electric fields

  • pinkyjoshi65
  • · Replies 11 ·
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11

How Do You Solve Difficult Matter and Energy Problems?

  • Manchuria
  • · Replies 4 ·
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4

How to Calculate Time Dilation with Spaceship Speeds | Expert Help

  • cyberdx16
  • · Replies 1 ·
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1

Rate at which energy is dissipated

  • Xaspire88
  • · Replies 2 ·
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2

Urgent help with Questions regarding Gen. Physics

  • Badal
  • · Replies 2 ·
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2

One question about rotational speed

  • wowolala
  • · Replies 1 ·
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1

Find initial speed, travel time and max height above the ground

  • zuku82
  • · Replies 1 ·
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1

Projectile Motion Questions: Solving for Time and Velocity

  • liquidblot
  • · Replies 3 ·
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3
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10

What Is the Impact of a Ferris Wheel's Motion on Apparent Weight?

  • brutalmadness
  • · Replies 4 ·
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4

Simple Harmonic Motion of a cart

  • biomajor009
  • · Replies 2 ·
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2

How Do You Calculate the Inductance of a Coil?

  • Xaspire88
  • · Replies 2 ·
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2

Uniform Circular Motion of an object

  • brutalmadness
  • · Replies 7 ·
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7

Wat are the units of angular velocity of precession?

  • karnten07
  • · Replies 2 ·
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2

The angular momentum of a flywheel

  • Eggyu
  • · Replies 2 ·
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2

Pressure Calculation for a Container with Water and Olive Oil

  • yoshiko
  • · Replies 2 ·
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2

Linear Acceleration at the Top and Bottom of a wheel

  • Eggyu
  • · Replies 8 ·
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8

Momentum and Impulse for a flywheel

  • richiecky
  • · Replies 1 ·
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1

Projectile fired at an angle from 1m

  • celcon
  • · Replies 2 ·
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2

How Does Inductance Affect Current in an RLC Circuit?

  • Xaspire88
  • · Replies 1 ·
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1

How Does Torque Affect Acceleration in a Rotating Disk System?

  • breez
  • · Replies 6 ·
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6

Stroboscope flash rate for stationary three-bladed propeller at 12.6 rev/s

  • wchvball13
  • · Replies 3 ·
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3

Electric Field Strength at Point Z

  • pinkyjoshi65
  • · Replies 10 ·
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10

Problem Involving Work Required for Stretching Spring

  • chocolatelover
  • · Replies 3 ·
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3

Work, force, and distance problem

  • chocolatelover
  • · Replies 12 ·
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12

Calculate Hydrostatic Force for Pumping Out Water from a Circular Pool

  • chocolatelover
  • · Replies 4 ·
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4

Projectile Motion: Finding Time

  • degrass1fan
  • · Replies 1 ·
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1

How Do You Plot the Inequalities Y < X and Y > -X on a Graph?

  • MoreZitiPlease
  • · Replies 3 ·
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3
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3

What Are the Forces Acting on a Box Sliding Down a Ramp?

  • mizunopro
  • · Replies 4 ·
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4

Solving for Time Gain in Pendulum Clock Covered by Lead Layer

  • karnten07
  • · Replies 4 ·
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4

Wind turbine energy HW Question

  • JuggerNauto
  • · Replies 1 ·
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1

Finding the Mass of an Aluminum Cup Based on Heat Transfer in a System

  • jincy34
  • · Replies 4 ·
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4

Harmonic Motion Homework: Find x(t) from Rest at x=11 cm

  • Bob Loblaw
  • · Replies 2 ·
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2

Work Sleigh Problem: Calculating Horse Work & Power

  • celcon
  • · Replies 2 ·
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2

Kinetic energy of moving automobile

  • St@rbury
  • · Replies 7 ·
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7

Rotational Motion of blocks and string

  • tdusffx
  • · Replies 3 ·
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3

Vector angle and magnitude help

  • singinheaven
  • · Replies 1 ·
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1

Calculating Compressive Stress and Change in Length of Tibia Bone

  • Bob Loblaw
  • · Replies 2 ·
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2

A projectile equation, and then some

  • MC Tujay
  • · Replies 3 ·
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3

Calculating Arrow Flight Time: Solving for Distance and Angle

  • Joza
  • · Replies 2 ·
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2

Understanding Velocity, Acceleration, and Equations

  • The_Z_Factor
  • · Replies 4 ·
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4

Thermal Equillibrium (I am missing something here)

  • Saladsamurai
  • · Replies 7 ·
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7

Falling cat - how long is the cat in the air

  • The_Z_Factor
  • · Replies 2 ·
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2

Solving for Distance: Spring Collision [SOLVED]

  • grouchy
  • · Replies 7 ·
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7

Static Equilibrium and tension of a cord

  • chaotixmonjuish
  • · Replies 9 ·
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9

Conservation of Energy in different frame

  • Microzero
  • · Replies 1 ·
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1

Potential Energy as a function of x

  • KvnBushi
  • · Replies 3 ·
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3

Determining Maximum Height of a Projectile Shot Upward from Earth

  • splac6996
  • · Replies 13 ·
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13

Velocity of Striking Ball After Collision: Billiard Ball Physics Problem

  • ken62310
  • · Replies 12 ·
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12

What is the final speed of a block and the angular speed of a pulley?

  • pcandrepair
  • · Replies 18 ·
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18

How Many Moles of Air Escape When Heated?

  • jincy34
  • · Replies 14 ·
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14

Derivation of exponential density function for air

  • tony_cruz
  • · Replies 2 ·
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2

Why is the system not considered isolated in this scenario?

  • jack1234
  • · Replies 5 ·
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5

Solve LR Circuit Problem: Find New Values for R & Vo

  • pronep
  • · Replies 2 ·
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2

Uncovering the Mystery of Neutrino Particles: How Scientists Detect Them

  • electron
  • · Replies 6 ·
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6

Atmospheric Density, exponential decay derivation

  • tony_cruz
  • · Replies 1 ·
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1

How Do You Determine the Kinetic Energy of a Satellite in Orbit?

  • sunumen
  • · Replies 4 ·
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4

Conservation of angular momentum help

  • sunumen
  • · Replies 2 ·
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2

Volume Charge Density in a long Cylinder

  • MtHaleyGirl
  • · Replies 6 ·
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6

How Does Circuit Resistance Change with Increasing Triangle Numbers?

  • Petrulis
  • · Replies 1 ·
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1

Solving Power Energy Problem: Inclined Plane 30 Degrees, 6.4m Long

  • deviantdevil
  • · Replies 2 ·
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2

Kinetic Energy Formula Expansion / Wnet relation.

  • Senjai
  • · Replies 7 ·
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7

What is the role of centripetal force in vertical circular motion?

  • Hamish Cruickshank
  • · Replies 1 ·
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1

Understanding Spring Compression: How Doubling It Affects Stored Energy

  • NewJersey
  • · Replies 3 ·
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3
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2

Balancing Forces and Mass on Mars

  • landry
  • · Replies 1 ·
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1

Does Doubling Horsepower Double Elevator Speed?

  • NewJersey
  • · Replies 1 ·
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1

Sketch the graph of Ff(y-axis) vs Fapp(x-axis)

  • pyroknife
  • · Replies 3 ·
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3

How Can I Extend My Coursework on Standing Waves?

  • Faloren
  • · Replies 1 ·
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1

Calculating Tension Needed to Lift 1400 kg Car

  • mortho
  • · Replies 1 ·
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1

Coefficient of kinetic friction of a block

  • landry
  • · Replies 1 ·
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1

How Do You Calculate the Depth of a Well Using the Speed of Sound?

  • sun
  • · Replies 12 ·
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12

Diver falling from 10 m platform: find speed at water

  • rhxoehwhfh
  • · Replies 5 ·
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5

Calculate the frictional torque of the record player

  • Noor123
  • · Replies 7 ·
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7

Tony Pulls Wagon: Work Problem Solutions

  • rhxoehwhfh
  • · Replies 6 ·
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6
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11

Speed after collision of a truck

  • KatieLynn
  • · Replies 1 ·
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1

Calculate Acceleration: 50N Force on 10kg Object with Ms=0.6

  • slammer
  • · Replies 1 ·
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1

Please. Internet test due soon.

  • The Motif
  • · Replies 1 ·
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1

Finding Force Values Using Pythagorean Theorem

  • slammer
  • · Replies 2 ·
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2