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 Does Magnetism Influence the Functionality of Telephones?

  • grade11
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How Does Dimensional Analysis Prove mH Equals Force in Magnetism?

  • bhaskarb
  • · Replies 2 ·
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2

Need help regarding finding out the max pressure in a isothermal cycle.

  • cochrad
  • · Replies 3 ·
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3

Will the block move with a parallel force?

  • ron_jay
  • · Replies 6 ·
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6

Intro to moving charges in a particle

  • grade11
  • · Replies 6 ·
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6

Electric Flux and Charges on the Surface of a Sphere

  • lugita15
  • · Replies 2 ·
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2

Differences between delta W or dW

  • dx+dy
  • · Replies 2 ·
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2

How to calculate effective resistance?

  • ritwik06
  • · Replies 4 ·
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4

Calculating Mass of Cylinder in Rotational Dynamics Problem

  • Kyleman
  • · Replies 2 ·
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2

Formulas for torque and velocity in simple algebra

  • misty
  • · Replies 3 ·
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3

How Is the Equation a Dot Product in Momentum Problems?

  • mohdhm
  • · Replies 7 ·
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7

Vector Potential: Proving Partial Derivative of A = E

  • captain
  • · Replies 1 ·
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1

Unable to visualize the concept of Torque.

  • RipClaw
  • · Replies 4 ·
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4

Block, spring, and mass problem

  • kiwikahuna
  • · Replies 2 ·
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2

Solving Physics Question: Frequency & Period, Time to Reach 8A

  • salvatorecaine
  • · Replies 3 ·
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3

Stationary point charge in increasing magnetic field

  • jimmyjets
  • · Replies 1 ·
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1

What is the magnitude of the impulse from the spike?

  • andrewn
  • · Replies 2 ·
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2

Electric Potential: Explaining Differences

  • MIA6
  • · Replies 21 ·
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21

Rate Of Turn and Turn Radius of an aircraft

  • Newton1Law
  • · Replies 2 ·
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2

Lorentz Contraction in Supersonic Jets

  • Benzoate
  • · Replies 5 ·
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5

Correcting for room temperature and atmospheric pressure

  • iyun
  • · Replies 8 ·
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8
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3

Relavistic velocity lorentz transformation problem.

  • Benzoate
  • · Replies 3 ·
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3

Orbitals around the nucleus problem

  • ksssudhanva
  • · Replies 5 ·
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5

Weight Distribution: Calculating Leg Weight

  • rdx
  • · Replies 29 ·
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29

How Does Time Dilation Affect Supersonic Jet Pilots?

  • Benzoate
  • · Replies 1 ·
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1
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3

What is the Input Impedance of a Circuit at Low and High Frequencies?

  • ineedmunchies
  • · Replies 2 ·
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2

Understand Potential Energy: Definition, Examples & More

  • MIA6
  • · Replies 23 ·
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23

Finding the momentum of the each balls

  • Niles
  • · Replies 7 ·
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7

Understanding Centripetal Force: Solving for Tension

  • i.mehrzad
  • · Replies 1 ·
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1
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4

Friction on an Inclined Plane: Kinetic or Static?

  • stakar11
  • · Replies 2 ·
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2

How is Thermal Energy Converted in a Ballistic Pendulum?

  • grade11
  • · Replies 18 ·
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18

Integrating with volume element (d^3)x

  • captain
  • · Replies 1 ·
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1

Free body diagram of a person sitting on a wheeled chair

  • Simfish
  • · Replies 3 ·
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3

What RPM Must a Shaft Reach for Arms to Extend Perpendicular?

  • treborly45
  • · Replies 17 ·
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17

How Do Newton's Laws Apply to a Tug-of-War on Ice?

  • Alyce777
  • · Replies 3 ·
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3

Known Dimensions: Proven Facts & Time

  • GammaBurst
  • · Replies 1 ·
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1

Car Mass & Speed: Explaining with Newton's 1st Law

  • cremedelacreme
  • · Replies 2 ·
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2

What does it mean to be 'quantized'?

  • MIA6
  • · Replies 5 ·
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5

Finding Glide Angle of Cessna-182 Plane at 136 km/h

  • yoinka
  • · Replies 2 ·
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2

How Does Binding Energy Affect Nuclear Fission Reactions?

  • BMWPower06
  • · Replies 4 ·
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4

Why Does Coulomb's Unit Measurement Include Seconds?

  • ehrenfest
  • · Replies 4 ·
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4

Electric Field outside a cylinder

  • t_n_p
  • · Replies 50 ·
2
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50
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27

How Is the Optimal Angle for a Roller Coaster Banked Curve Determined?

  • Amy54
  • · Replies 1 ·
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1

What is a wavefront? sine or cosine graph?

  • MIA6
  • · Replies 10 ·
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10

Gravitational potential energy - problem

  • zinc79
  • · Replies 6 ·
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6

Calculating Acceleration of a Cylinder on an Incline

  • muppet
  • · Replies 2 ·
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2

A simple differential equation question.

  • MathematicalPhysicist
  • · Replies 1 ·
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1

Galilean transformation problem

  • Benzoate
  • · Replies 12 ·
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12

Energy of Electron: Solving Eqn & Variable k

  • patapat
  • · Replies 3 ·
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3

Calculating Tank Velocity and Stopping Time Due to Rain Drops

  • MathematicalPhysicist
  • · Replies 6 ·
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6

Calculating Final Velocity of an Object with Power Input

  • HalfThere
  • · Replies 9 ·
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9

Riding With a Particle: Measuring Its Lifetime

  • cshelbythec
  • · Replies 2 ·
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2

Conservation of energy of falling chimney

  • James01
  • · Replies 3 ·
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3

No Net Force in E & B Perpendicular Fields

  • jesuslovesu
  • · Replies 3 ·
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3

Solve Coordinate System Problem: Find Acceleration & Tension

  • frostchaos123
  • · Replies 6 ·
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6

What is the half life of the isotope?

  • mike2007
  • · Replies 7 ·
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7

Solving a Physics Problem Involving Two Blocks Connected by a Cord

  • Edwardo_Elric
  • · Replies 1 ·
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1

Nuclear reaction or chemical reaction

  • mike2007
  • · Replies 3 ·
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3

Do Nuclear Reactions Create New Elements?

  • mike2007
  • · Replies 1 ·
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1

Chemical element and chemical property

  • mike2007
  • · Replies 1 ·
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1
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2

How Do You Analyze the Electric Field Created by Two Charges?

  • t_n_p
  • · Replies 17 ·
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17
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9

Why Isn't Kinetic Energy Always Conserved with Momentum?

  • Oerg
  • · Replies 11 ·
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11

Why wavelength matters in diffraction

  • MIA6
  • · Replies 3 ·
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3
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5

Does Gas Density Influence Expansion When Heated?

  • s.p.q.r
  • · Replies 2 ·
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2

Producing X-Rays from a Television Picture Tube

  • mike2007
  • · Replies 2 ·
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2

Amusement Park ride - maximum period of rotation

  • avsj
  • · Replies 2 ·
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2

How Does Angular Velocity Change as a Particle Slides Down a Sphere?

  • James01
  • · Replies 1 ·
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1

Some vectors and buried treasure.

  • niyati
  • · Replies 3 ·
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3

Gravitational Force(Why the negative sign?)

  • Gunman
  • · Replies 5 ·
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5

Calculating Velocity and Momentum in Inelastic Collisions

  • mwahx3
  • · Replies 3 ·
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3

SAT Question concerning Newton's Third Law

  • yellowenigma
  • · Replies 2 ·
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2

Mechanics: Work and Forces in Vertical Motion

  • Niles
  • · Replies 7 ·
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7

Finding Initial Velocity in 2D Kinematics Problems

  • fredrancour
  • · Replies 2 ·
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2
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9

Circular Motion: Acceleration Direction

  • mwahx3
  • · Replies 1 ·
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1

Heat turn iron to gold if heated?

  • mike2007
  • · Replies 2 ·
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2

How fast does light travel in 1 ft?

  • dan001
  • · Replies 14 ·
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14

Pendulum swing -basic trig problems

  • mujadeo
  • · Replies 12 ·
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12

Find unit vector and cross product

  • Edwardo_Elric
  • · Replies 4 ·
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4

Projectiles, Momentum, and work

  • blader324
  • · Replies 15 ·
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15

Stretched spring -find coeff of friction

  • mujadeo
  • · Replies 13 ·
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13

What Is the Expert Golfer's Ideal Single Stroke on the Green?

  • niyati
  • · Replies 1 ·
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1

Solve Spring Compression Homework Problem

  • andrewn
  • · Replies 2 ·
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2

Dropping coal on a platfrom (energy cons)

  • mujadeo
  • · Replies 2 ·
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2

Challenging projectile question

  • holden__lover
  • · Replies 1 ·
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1

Decibels, pressure & displacement amplitudes

  • heartofaragorn
  • · Replies 4 ·
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4

Calculating Apparent Depth: Air vs Water

  • Alyce777
  • · Replies 1 ·
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1

Solving Kinematics Homework - Car & Truck Displacement & Speed

  • Alyce777
  • · Replies 2 ·
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2

Wind Velocity: Findings & Insight Needed

  • Iniuria12
  • · Replies 7 ·
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7

What is the significance of the gravitational constant G in physics?

  • questioner
  • · Replies 8 ·
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8

2 carts, a string, what is the work done?

  • mujadeo
  • · Replies 24 ·
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24

Can Math Truly Transition from Finite to Infinite?

  • Opoint
  • · Replies 3 ·
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3

Will I Die if I Shoot a Bullet to the Sky?

  • h0pez
  • · Replies 2 ·
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2