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

Solving for Acceleration when weight is in Newtons instead of Kg

  • tommyboy2
  • · Replies 6 ·
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6

Circuit with two resistances and inductance

  • bznm
  • · Replies 4 ·
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4
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2

Can I reverse the PdV integral for work?

  • Hercuflea
  • · Replies 1 ·
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1

Two Rotational Dynamics Problem

  • morrisj753
  • · Replies 1 ·
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1

A Uniform Beam Supported by a Cable

  • ginza88
  • · Replies 1 ·
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1

Sketch of an interatomic potential

  • CAF123
  • · Replies 8 ·
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8

How Do You Analyze Acceleration on a Position vs. Time Graph?

  • omc1
  • · Replies 15 ·
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15

Newton's second law - jumping from a height

  • eternalronin
  • · Replies 7 ·
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7

How to derive the capacitance formula for two capacitors in series

  • maulucci
  • · Replies 9 ·
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9

Rifle recoil velocity from a 15 g bullet fired at 220 m/s

  • tommyboy2
  • · Replies 2 ·
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2

Mechanics - marble rolling in dish

  • micromass
  • · Replies 29 ·
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29

Latent Heat and conservation of energy

  • rico22
  • · Replies 6 ·
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6

The First Law of Thermodynamics

  • rico22
  • · Replies 2 ·
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2

Calculate the kinetic energy of an electron with a wavelength of 1fm

  • richyw
  • · Replies 1 ·
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1

Find effective resistance using kirchoff's laws

  • brushman
  • · Replies 4 ·
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4

Finding the weight supported by two angled wires at 60° and 45°

  • zeshkani1985
  • · Replies 10 ·
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10

Electric field at a distance from a charged disk

  • kb1408
  • · Replies 11 ·
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11

Conservation of Momentum Question.

  • skg94
  • · Replies 6 ·
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6

Escape Velocity Calculation for a Spaceship in Space

  • athymy
  • · Replies 4 ·
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4
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21

Calculating molar specific heat capacity - not a monatomic gas

  • PhysicsFriend
  • · Replies 1 ·
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1

Change in magnitude of radial acceleration

  • alexmahone
  • · Replies 1 ·
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1

Boat crossing/Glide Ratio/Hydraulic design

  • zeshkani1985
  • · Replies 17 ·
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17

Brachistochrone Differential Equation

  • Bennigan88
  • · Replies 2 ·
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2

What is the Average Pressure on an Apple During Impact?

  • nhmllr
  • · Replies 2 ·
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2

Explain in fragmented way 1-methylstyrene's spectrum

  • chem5
  • · Replies 1 ·
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1

Angular Momentum and Point of Application in Rolling Motion

  • PhizKid
  • · Replies 6 ·
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6

Reduce the amount of kinetic energy loss in a collision

  • fdajkffk
  • · Replies 1 ·
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1

Perception of apparent (seeming) motion

  • ShiPe
  • · Replies 12 ·
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12

Atwood machine pulley inertia and ice-water equilibrium

  • anuragpapineni
  • · Replies 1 ·
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1

What is the concept of equivalent resistance in electrical circuits?

  • Ezio3.1415
  • · Replies 8 ·
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8

Equilibrium and Statics involving a mass attached to three strings

  • alingy1
  • · Replies 4 ·
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4

Finding sound frequency for echo with single slit diffraction

  • athymy
  • · Replies 1 ·
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1
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11

How much force is 5T of pressure exerted by a hydraulic ram?

  • davekardle
  • · Replies 1 ·
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1

Potential Energy during Constant Velocity Motion

  • hgfhh123
  • · Replies 2 ·
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2

Effect of earth's rotation on an object on the surface

  • timarli
  • · Replies 4 ·
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4

Banked Curves and Static Frictional Components

  • Starwing123
  • · Replies 2 ·
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2

Car on a banket - maximum speed formula derivation

  • timarli
  • · Replies 2 ·
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2

The easiest derivation of rod's moment of inertia?

  • Glyper
  • · Replies 2 ·
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2

What is the correct component force along the axis of the hook?

  • jgreen520
  • · Replies 6 ·
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6

Electronics - calculating voltages

  • Adoniram
  • · Replies 7 ·
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7

Difference b/w uniform motion and velocity

  • chikis
  • · Replies 1 ·
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1

Finding maximum height of object thrown upward with initial velocity

  • Dude22
  • · Replies 6 ·
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6

Rolling Objects, Friction, and Newton's Second Law

  • Starwing123
  • · Replies 1 ·
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1

Trouble calculating a projectiles height after a certain distance

  • agm1984
  • · Replies 27 ·
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27

Gravity in the upper atmosphere

  • hms.tech
  • · Replies 13 ·
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13

Circuit analysis potential difference

  • hms.tech
  • · Replies 10 ·
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10

Volcano in mars ejects rocks. Straight line motion

  • Toranc3
  • · Replies 4 ·
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4

Can the Picture Be Hung in a Stable Equilibrium?

  • arestes
  • · Replies 18 ·
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18

Notation of permittivity in farads per meter question

  • KClose1983
  • · Replies 2 ·
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2

Potential Energy of a System of charged particles

  • sniper_spike
  • · Replies 6 ·
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6

Scaling factor of a mass spring system

  • mrcotton
  • · Replies 5 ·
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5

Projectile fired at 40° from 40 m height hits ground at 1.4v

  • v1ru5
  • · Replies 7 ·
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7

Max Impact of Free-Falling Bomb on Target

  • Numeriprimi
  • · Replies 1 ·
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1

What characterizes coil springs?

  • alingy1
  • · Replies 2 ·
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2

Questions in Newtons Laws and Thermodynamimcs.

  • nasar176
  • · Replies 3 ·
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3

Will Two Synchronized Atomic Clocks Remain in Sync After One Year?

  • Lauren12
  • · Replies 1 ·
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1

The working of an electric motor and generator

  • ASidd
  • · Replies 4 ·
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4

Sound Intensity and Threshold of hearing

  • gomess
  • · Replies 3 ·
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3

Bernoulli's Equation (Water Outflow Speed of Tank)

  • Von Neumann
  • · Replies 2 ·
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2

Free electrons in solid sphere of copper

  • CAF123
  • · Replies 17 ·
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17

The direction of proton in a magnetic field

  • ASidd
  • · Replies 1 ·
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1

Clarification of Black Body Radiation

  • Minki
  • · Replies 2 ·
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2

Why does an elevator move upward with zero net force?

  • quicksilver123
  • · Replies 4 ·
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4

Calculating Power and Tension for Lifting a Boat on an Incline

  • davekardle
  • · Replies 6 ·
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6

N-Body Problem - Initial Values

  • physxfreak
  • · Replies 4 ·
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4

How Do You Write the Function for a Traveling Wave on a String?

  • Renaldo
  • · Replies 8 ·
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8

Proton-Proton Interaction at Minimum Separation

  • f25274
  • · Replies 9 ·
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9

How to Calculate the Shortest Chain Sling Length for Lifting a Bin?

  • crashdirty86
  • · Replies 5 ·
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5

Special Relativity pion decay problem

  • Nate D
  • · Replies 5 ·
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5

Magnetic field far from a solenoid

  • jaumzaum
  • · Replies 2 ·
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2

Applying force to a flat object with contact points

  • santeri
  • · Replies 4 ·
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4

I really with a MATLAB iteration code

  • physicist10
  • · Replies 1 ·
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1

Determining energy delivered from critical angle

  • enc08
  • · Replies 1 ·
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1

Calculating Terminal Velocity of a Free Falling Body with Air Resistance

  • aeb2335
  • · Replies 1 ·
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1

Colour of light producing photoelectrons?

  • Lauren12
  • · Replies 8 ·
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8

1D Kinematics - Integration of the Equations of Motion

  • bearjew11
  • · Replies 3 ·
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3

Power problem, to use net force or work energy theorem?

  • deblimp
  • · Replies 3 ·
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3

Swing with initial velocity and displacement: find θ(t)

  • Stealth849
  • · Replies 11 ·
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11

Can Wally Whacko's Heat Engine Truly Achieve 92% Efficiency?

  • chipM
  • · Replies 12 ·
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12

Similarities and differences between magnetic and electrostatic forces

  • diane1996
  • · Replies 4 ·
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4

Finding center of gravity of a wheelbarrow with a 1,050 N load

  • joel amos
  • · Replies 3 ·
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3

Solution to Momentum Principle Problem

  • C R P
  • · Replies 6 ·
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6

Moments - Balancing a weighted meter stick

  • alexmahone
  • · Replies 3 ·
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3

Calculating turns in a primary coil of a transformer

  • Bobazoide
  • · Replies 2 ·
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2

Splitting Comet Momentum Problem Solutions

  • kariibex
  • · Replies 4 ·
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4

What causes the normal force to increase in circular motion?

  • ShizukaSm
  • · Replies 1 ·
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1

Using a cube as a Gaussian surface

  • anban
  • · Replies 2 ·
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2

What is the pressure and volume of gas in different states?

  • asheik234
  • · Replies 2 ·
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2

Find the natural frequency of a spring

  • physicist10
  • · Replies 9 ·
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9

Kinematics Problems: Calculating Time and Displacement for Moving Objects

  • phospho
  • · Replies 5 ·
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5

How Does Friction Affect the Acceleration of Stacked Blocks?

  • vjnmath
  • · Replies 1 ·
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1

Pedagogical machine acceleration when force is 0

  • PhizKid
  • · Replies 11 ·
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11

Relationship of W and v in a region of uniform magnetic field

  • e.pramudita
  • · Replies 2 ·
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2

Thermal conduction between difference surfaces

  • sgstudent
  • · Replies 6 ·
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6

Plot Orbit using Orbital Elements: 2D Analysis

  • Brazil_Physic
  • · Replies 1 ·
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1

How to work out frictional torque

  • lew123189
  • · Replies 37 ·
2
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37

What is the Equivalent Resistance in a Series Circuit?

  • Dr.Phy
  • · Replies 9 ·
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9