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 would I perform this surface integral?

  • Boltzman Oscillation
  • · Replies 7 ·
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7

Calculating Slingshot Projectile Motion - Finding Initial Velocity

  • Physics Person
  • · Replies 5 ·
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5

Ball shot from spring: kinetic energy and momentum at release

  • Physics Person
  • · Replies 6 ·
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6
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1

How to Determine the Resistance R1 in a Mixed Circuit Analysis?

  • Logan Batson
  • · Replies 8 ·
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8

Kinetic energy of rotation and parallel axis theorem problem

  • LuigiAM
  • · Replies 11 ·
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11

Speed at the top of an elliptical roller coaster loop

  • JessicaHelena
  • · Replies 4 ·
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4

Car braking distance using energy conservation

  • Taylan
  • · Replies 17 ·
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17

Converting air pressure equation from kilometers to meters

  • Poetria
  • · Replies 7 ·
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7

Power loss in a transmission line

  • Cocoleia
  • · Replies 4 ·
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4

How to break up kinetic energy for circular motion?

  • Nate Stevens
  • · Replies 4 ·
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4

Maximum and minimum speeds in a moving cube

  • Jenny Physics
  • · Replies 20 ·
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20

How Does Hill's Law Affect Lifting Different Weights?

  • John3509
  • · Replies 1 ·
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1

Average Pressure Radiation on Perfectly Absorbing Surface

  • rugerts
  • · Replies 6 ·
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6

Determine the period of small oscillations

  • Jorgen1224
  • · Replies 11 ·
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11

Force needed to move a conducting bar on a wire U-loop in a magnetic field

  • cookiemnstr510510
  • · Replies 3 ·
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3

Designing a banked circular highway exit with friction

  • Yellowkies_3275
  • · Replies 9 ·
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9

How Many Angles Maintain 2.00 W/m² Intensity in GPS Satellite Tests?

  • Penguin98
  • · Replies 2 ·
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2

Intensity of Interference Pattern

  • Wombats
  • · Replies 7 ·
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7

A few questions concerning voltage, current and resistance

  • Volta
  • · Replies 5 ·
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5

Equation for sum of torques on a ladder and minimum angle

  • Howard Fox
  • · Replies 1 ·
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1

How Is Destructive Interference Achieved in a Liquid Film on Glass?

  • Penguin98
  • · Replies 2 ·
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2

The thickness of glass and the longest wavelength

  • Penguin98
  • · Replies 1 ·
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1

Why does this solution assume it's a steady-flow system?

  • EastWindBreaks
  • · Replies 6 ·
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6

The time for pressure to build up

  • Setareh7796
  • · Replies 4 ·
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4

How do you find the magnitude of acceleration?

  • mikelison womack
  • · Replies 24 ·
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24

Thermodynamics - water vapour cycle

  • michealyap
  • · Replies 44 ·
2
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44

Maximum of exponential function

  • Binder12345
  • · Replies 9 ·
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9

How to find the aceleración and the rope forcé Fs?

  • neon495
  • · Replies 2 ·
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2

Calculating surface tension with the Capillary Equation

  • Allen Montgomery
  • · Replies 29 ·
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29

Atwood machine with variable mass

  • titansarus
  • · Replies 7 ·
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7

Identifying Multiple Oscillations in a Graph

  • GoCubs12
  • · Replies 19 ·
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19

Conceptual Issue RE: electric potential difference

  • keroberous
  • · Replies 1 ·
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1

How can we determine the thrust generated?

  • Chris Michos
  • · Replies 3 ·
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3

Do we assume the mixing chamber has an outlet?

  • EastWindBreaks
  • · Replies 3 ·
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3

Projectile motion problem, given the KE at the top of the parabolic arc

  • Bilal Rajab Abbasi
  • · Replies 7 ·
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7

Why does terminal velocity give graph A, not B?

  • Aaryan34532
  • · Replies 2 ·
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2

Speed of ball vs Acceleration of the ball?

  • Aaryan34532
  • · Replies 4 ·
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4

Swinging Tarzan: Solving for Maximum Height & Angle

  • physicshelppls
  • · Replies 3 ·
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3

Finding velocity in the Hall effect with given dimensions and voltage

  • cookiemnstr510510
  • · Replies 1 ·
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1

Heat flow in and out of a cabaret

  • Dreebs
  • · Replies 7 ·
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7

How Many Electrons Pass Through a Capacitor When Discharged?

  • HazyMan
  • · Replies 31 ·
2
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31

Why is the Work Zero on a Frictionless Surface?

  • Aaryan34532
  • · Replies 6 ·
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6

Electric Field due to dipole - solution check

  • Ivan Hu
  • · Replies 7 ·
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7

How to find the normal force of a car jack lifting a car

  • Protium_H1
  • · Replies 7 ·
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7

How to find the minimum angular resolution?

  • Nat1234123
  • · Replies 3 ·
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3

Calculating Dimensions of Titanium Disk Under Load

  • WhiteWolf98
  • · Replies 6 ·
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6

Block at rest on an inclined surface

  • Akash47
  • · Replies 36 ·
2
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36

Energy Efficient AC unit by returning air to the building

  • Dreebs
  • · Replies 1 ·
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1

What is the Direction of Normal Force in Static Equilibrium on a Ramp?

  • Coderhk
  • · Replies 5 ·
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5

Induced EMF — generator coil area calculation

  • Celso
  • · Replies 4 ·
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4

Net work on a 5 kg box pulled up an inclined plane

  • Arsana
  • · Replies 6 ·
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6

Calculating controller gain in a feedback loop

  • Keeeen
  • · Replies 14 ·
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14

How to Calculate Tension Forces in a System?

  • Akash47
  • · Replies 4 ·
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4

How to calculate the drag force?

  • EelAnes
  • · Replies 7 ·
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7

What do wave crests indicate about a boat's speed?

  • Mohammed Sayanvala
  • · Replies 7 ·
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7

Flux through a coil due to Self-Inductance

  • betamu
  • · Replies 6 ·
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6

How Late Did the Man Arrive to Catch the Train?

  • Jenny Physics
  • · Replies 36 ·
2
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36

The minimum inclination of a surface

  • Quill
  • · Replies 6 ·
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6

Finding final temperature in adiabatic compression from 0.1 to 100 MPa

  • Another
  • · Replies 8 ·
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8

Block on incline connected to hanging mass by pulley

  • ANGLA
  • · Replies 3 ·
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3

Thermal Energy when Heating and Cooling a Cabaret

  • Dreebs
  • · Replies 1 ·
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1

Derive the formula for the frequency of a spring

  • astroman707
  • · Replies 3 ·
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3

What is the Entropy Change When Water Freezes to Ice?

  • Another
  • · Replies 4 ·
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4

Refraction angle for shooting a dolphin with a dart gun

  • Seneka
  • · Replies 3 ·
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3

Find the charge q(t) for an LC circuit

  • sneakycooky
  • · Replies 2 ·
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2

Solving Entropy in Moist Air: No Violation of Law

  • Dreebs
  • · Replies 2 ·
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2

Does Humidity Affect Entropy in Climate-Controlled Environments?

  • Dreebs
  • · Replies 10 ·
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10

Heating efficiency of a Heat Pump and a Space Heater

  • Dreebs
  • · Replies 1 ·
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1

Calculating Solar Mass using peak Doppler shifts

  • bbbl67
  • · Replies 7 ·
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7

Why cooling air requires electricity and produces heat elsewhere

  • Dreebs
  • · Replies 5 ·
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5

Heating a Cabaret during the winter

  • Dreebs
  • · Replies 4 ·
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4

Initial and final power supplied by a person pushing a stone

  • Howard Fox
  • · Replies 26 ·
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26

Torque and counterclockwise versus clockwise

  • Madelin Pierce
  • · Replies 2 ·
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2

Block-spring system period on the moon vs Earth

  • Jordan Jones
  • · Replies 3 ·
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3

Centripetal Force Banked Curves

  • nick76342
  • · Replies 12 ·
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12

Potential energy of ball thrown upwards

  • sp3sp2sp
  • · Replies 5 ·
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5
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3

A problem about thin-film interference

  • Aurora_b
  • · Replies 3 ·
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3

Galaxy number density and intergalactic distance estimation

  • fab13
  • · Replies 2 ·
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2

What is the formula for calculating the mass of air in a piston?

  • Gregs6799
  • · Replies 6 ·
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6

Bullet shooting vertically into a block

  • christang_1023
  • · Replies 9 ·
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9

The refractive index of an unknown liquid

  • many questions
  • · Replies 1 ·
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1

Finding final speed of falling 200 kg object using kinematics

  • Syeda
  • · Replies 6 ·
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6

Conservation of Momentum Space Ship Problem

  • AnhTran
  • · Replies 4 ·
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4

Torque and Angular Momentum - Origin Misconception

  • Lost1ne
  • · Replies 5 ·
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5

Spring toy fired on flat surface: speed and maximum height

  • Syeda
  • · Replies 3 ·
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3

Final temperature for two blocks of iron placed in contact

  • dwight_v
  • · Replies 4 ·
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4

Angular Momentum of a Moving Particle

  • Mark Zhu
  • · Replies 2 ·
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2

Finding source current in parallel R and LC circuit using phasors

  • Shivang kohlii
  • · Replies 2 ·
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2

Voltage and electric field in capacitor

  • Hiposi
  • · Replies 2 ·
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2

Polarization of Light Analogy Question

  • flintstones
  • · Replies 9 ·
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9

Coin on a turntable problem in a noninertial frame

  • Natchanon
  • · Replies 12 ·
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12

Finding phase constant from SHM position and velocity at t=0

  • Dorian
  • · Replies 8 ·
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8

Find the mass of a block on an inclined pulley

  • mt05
  • · Replies 3 ·
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3

What's the difference between hydrostatic force and bouyancy?

  • Nolsen
  • · Replies 2 ·
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2

At what point is Electric Potential zero

  • Lizi
  • · Replies 2 ·
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2
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1

Are Real Images Always Inverted and Virtual Always Erect in Ray Optics?

  • Krushnaraj Pandya
  • · Replies 9 ·
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9

AC Circuit and Thevenin's theorem

  • archaic
  • · Replies 3 ·
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3