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 Estimate Is and Rs Values?

  • Eric08
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1

How Is Power Extracted from Wind Turbines?

  • Pseudopro
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2

What is the particle's distance from the origin

  • TonkaQD4
  • · Replies 6 ·
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6

Hydrostatic Equation/Finding depth

  • Spartanlol
  • · Replies 7 ·
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7

Simple Static Pressure problem, with units

  • hackashack
  • · Replies 5 ·
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5

Why do atoms emit discrete frequencies of light?

  • AravindSrivat
  • · Replies 4 ·
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4

Please check solutions to Error Uncertainty calculations

  • madeeeeee
  • · Replies 1 ·
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1

Seeking Experienced Physics Tutor: Paypal Payment Available

  • BuhRock
  • · Replies 3 ·
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3

Projectile Motion Using Vectors

  • VKK
  • · Replies 5 ·
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5

Help with Electric Field on a Square Insulating Sheet?

  • isabellef
  • · Replies 5 ·
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5

Calculating Displacement and Landing Position of a Horizontal Projectile

  • warrior2014
  • · Replies 14 ·
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14

What equations should be used to calculate the tension in a rope?

  • deezy
  • · Replies 4 ·
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4

Connected Wheels Problem. Angular Velocity.

  • EpiphoneBenji
  • · Replies 3 ·
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3

Calculating Vector Components: Finding B_y with A-B Parallel to -x Axis

  • jamesbrewer
  • · Replies 4 ·
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4

Solving Vector C with Unit Vectors | Cross Product Help

  • Eats Dirt
  • · Replies 1 ·
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1

How to Solve Multi Phase Kinematics Problems?

  • canadiankid
  • · Replies 2 ·
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2

What is the Velocity and Direction of a Puck on an Air Hockey Table?

  • Scarlet_pat
  • · Replies 1 ·
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1

How Do You Solve a Coupled Oscillator Problem with Limited Physics Background?

  • jennieblue22
  • · Replies 2 ·
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2

Rotational kinematics using energy

  • alco19357
  • · Replies 1 ·
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1

Center of Mass Homework: Equations & Solution

  • snowcover
  • · Replies 3 ·
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3

Magnitude of the initial velocity of projectile

  • vectorunits
  • · Replies 1 ·
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1

Current vs Number of wires (finding cross section of a wire)

  • multiix
  • · Replies 1 ·
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1

Semicircular Line Charge Electric Field

  • jegues
  • · Replies 2 ·
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2

Simple Physics Problem (pushing a crate up a slope)

  • smashbrohamme
  • · Replies 2 ·
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2

Conservation of energy to find horizontal displacement?

  • goomer
  • · Replies 1 ·
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1

Circular Motion and Centripetal Force of a Swinging Bucket

  • ama
  • · Replies 4 ·
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4

Calculating Ball Trajectory from Window Observations

  • Manni
  • · Replies 5 ·
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5
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1
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3

Is Va > Vb if Vb - Va = -6000V?

  • pyroknife
  • · Replies 1 ·
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1

Tracking a Particle's Motion Along x-Axis

  • jnunes5707
  • · Replies 1 ·
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1

Variable Voltage, Two inductor, One capacitor Circuit

  • Gasharan
  • · Replies 4 ·
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4

Polar Coordinates Homework: Find the Polar Form of an Expression

  • hermano
  • · Replies 1 ·
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1

Help getting projectile motion equations straight in my head

  • Ocasta
  • · Replies 1 ·
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1

Solar irradiation on the Earth as a function of latitude.

  • Lavabug
  • · Replies 3 ·
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3

Determining pressure in Interstellar space

  • pdonovan
  • · Replies 8 ·
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8

Solving the Electron Projection Problem with Field E

  • mohamud3917
  • · Replies 11 ·
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11

Y-Delta conversion for Capacitors

  • cupid.callin
  • · Replies 10 ·
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10

How Much Further Will the Truck Travel Before Stopping?

  • lionely
  • · Replies 12 ·
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12

Finding the weight, work, and normal force of a block

  • sample5
  • · Replies 1 ·
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1

Substended angle, diameter question

  • jehan4141
  • · Replies 3 ·
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3

Stoke's law and its applications

  • logearav
  • · Replies 4 ·
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4

How Does Skidding Affect Angular Acceleration on a Rotating Turntable?

  • Kurokari
  • · Replies 5 ·
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5

How Is Time Calculated for a Car Sliding Along a Cycloid?

  • Liquidxlax
  • · Replies 3 ·
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3

Damper Oscillator dropping amplitude to half the original value

  • Hypnos_16
  • · Replies 2 ·
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2

Thermodynamics: two stage-compressor

  • Four_FUN
  • · Replies 2 ·
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2

Finding the expression for the horizontal acceleration

  • Xyius
  • · Replies 2 ·
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2

Distance unknown, have acceleration time and another distance

  • vicsic
  • · Replies 7 ·
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7

Motion Projectile Homework: Find x - 24.85 m

  • GreenPrint
  • · Replies 5 ·
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5

Understanding Kinematic Graphs and Instantaneous vs. Average Acceleration

  • losolomd
  • · Replies 1 ·
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1

Acceleration and velocity question-easy-

  • vicsic
  • · Replies 10 ·
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10
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2

Force required to lift a bar pivoting on one end

  • mamcinty
  • · Replies 1 ·
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1

Determining Average Deceleration of a Car Using Equations of Motion

  • LaurenceFS
  • · Replies 2 ·
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2

What are the numerical values of a1 and a2 in this AC transformer circuit?

  • chem_is_lovex
  • · Replies 17 ·
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17

Solve Fluid Flow Problem: Find Water Rise in Cylindrical Bucket

  • joe007
  • · Replies 3 ·
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3

Is There Work Exerted by the Boy on the Book?

  • arjose
  • · Replies 8 ·
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8

Ski Jumper Physics: Flying Downhill & Air Time

  • flower76
  • · Replies 9 ·
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9

What is the Electric Field in a Non-Uniformly Charged Spherical Volume?

  • mateomy
  • · Replies 1 ·
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1

Bernoulli's equation derivation

  • logearav
  • · Replies 2 ·
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2

Midship section problem from naval architect

  • buaazjw
  • · Replies 1 ·
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1

Determining Time Difference for Two Free-Falling Diamonds at a Given Distance

  • chevymechanic
  • · Replies 9 ·
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9

What Is the Speed of the Block at the Bottom of the Ramp?

  • pugola12
  • · Replies 3 ·
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3

Elastic and inelastic collision problems

  • Bernoulli19
  • · Replies 3 ·
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3

Rotational and translational motion hybrid quetion. How to digest it?

  • vkash
  • · Replies 4 ·
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4

Is insulating and nonconducting the same thing?

  • pyroknife
  • · Replies 1 ·
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1

Second Harmonic - Standing Waves

  • Peter G.
  • · Replies 5 ·
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5

Confused about this solution manual approach-link included

  • pyroknife
  • · Replies 1 ·
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1

Calculating Height & Time of a Falling Ball | Physics Problem Solution

  • Manni
  • · Replies 3 ·
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3
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5

Trouble understanding energy concepts

  • jiboom
  • · Replies 12 ·
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12

Calculate Elevator Accel. - FN=mg+ma

  • mpd105
  • · Replies 1 ·
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1

Sign(z): What Does It Mean in a Physics Equation?

  • pyroknife
  • · Replies 1 ·
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1

Deriving the Formula for Final Velocity in One Dimension

  • SaltyBriefs
  • · Replies 2 ·
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2

Insect on spinning record problem

  • lab-rat
  • · Replies 7 ·
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7

Crash with the police car /suvat problem

  • IB1
  • · Replies 1 ·
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1

Scientic error expected in displacement vs time graph and velocity vs time graph

  • Crusaderking1
  • · Replies 2 ·
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2

How can I calculate the car's position when it lands in the ocean?

  • jsr219
  • · Replies 1 ·
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1

Projectile Motion - hammer sliding off a roof

  • Nickg140143
  • · Replies 1 ·
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1

How Far Can a Bicycle Lead a Car When Both Accelerate from a Stop?

  • feihong47
  • · Replies 1 ·
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1

When Were These Galaxies at Our Location?

  • jackyjack
  • · Replies 8 ·
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8

Calculating Displacement with Vectors

  • Angus Dolan
  • · Replies 4 ·
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4

Projectile Motion: Find Launch Speed

  • Calam1tous
  • · Replies 1 ·
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1

How Can an Astronaut Determine Falling Object Acceleration on the Moon?

  • losolomd
  • · Replies 2 ·
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2

Thermodynamics and Entropy- reservoir and block problem

  • emmy
  • · Replies 2 ·
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2

Velocity & Displacement Graphing

  • lindseyam
  • · Replies 1 ·
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1

Electric field in an electrostatic precipitator.

  • MSZShadow
  • · Replies 2 ·
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2

Electric Field due to a Ring of Charge

  • DarkWarrior
  • · Replies 3 ·
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3

Vector units;velocity,accel, and time

  • vectorunits
  • · Replies 5 ·
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5

Initial Velocity of Charged Particle in Electric/Magnetic Fields

  • Weistber
  • · Replies 4 ·
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4

How Do You Calculate the Refractive Index of a Prism?

  • JonnyRockets
  • · Replies 4 ·
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4

What Are the Values of n and m in the Equation a = v^n/r^m?

  • Aamer030
  • · Replies 6 ·
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6

Why Is the Kinetic Energy Equation Equated to eV in Lenard's Experiment?

  • logearav
  • · Replies 5 ·
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5

How to Calculate the Initial energy of two protons colliding

  • msPhysics
  • · Replies 3 ·
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3

Is Left Side of Gauss' Law equation not the total electric flux?

  • DocZaius
  • · Replies 1 ·
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1

Acceleration from Position vs Time^2 ?

  • amd123
  • · Replies 1 ·
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1

Normal Force of a Puck on a Sphere

  • Oijl
  • · Replies 6 ·
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6

How to Calculate Magnitude and Direction for Orv's Walk?

  • lalahelp
  • · Replies 6 ·
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6

To write x as a function of time doubt.

  • naaa00
  • · Replies 4 ·
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4
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5