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

As level Non-Uniform Plank question.

  • templarbaza
  • · Replies 7 ·
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7

What happens to wavelength in a ripple tank when frequency is doubled?

  • labview1958
  • · Replies 2 ·
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2

Graph for Domino Drop Experiment

  • 1NS4N3 4ZN
  • · Replies 1 ·
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1

How Do You Calculate the Initial Height of a Ski Jump?

  • juggalomike
  • · Replies 3 ·
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3

Angle of Refraction: Find Low Power Laser Incident Angle

  • 05holtel
  • · Replies 1 ·
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1

Circular Motion and Newton's Seconds Law (Calculus)

  • Johnny0290
  • · Replies 2 ·
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2

Car deceleration with object attached to roof

  • The Beez
  • · Replies 1 ·
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1
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5

Torque and Angular Acceleration

  • r_swayze
  • · Replies 1 ·
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1

Retina Image Size: 43 ft Tree vs. 12 in Flower - Eye Distance Comparison

  • matt72lsu
  • · Replies 1 ·
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1

How to Find the Velocity of a Gliding Object After Time t?

  • suchara
  • · Replies 2 ·
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2
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1

Power of Brakes in 1452 kg Car: 4501.2 W

  • HazelDryad
  • · Replies 1 ·
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1

Multivariable Calc Absolute Extrema Problem

  • joemabloe
  • · Replies 2 ·
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2

What is the Correct Formula for Static Friction on an Inclined Box?

  • physgirl
  • · Replies 3 ·
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3

Circular Motion Problem w/ Conservation of Energy

  • mxwtt
  • · Replies 1 ·
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1

Calculate the power of the crane

  • Brittykitty
  • · Replies 2 ·
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2

How Do You Calculate the Moment of Inertia for a Square?

  • khangaroo
  • · Replies 1 ·
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1

Period of Star When Diameter Shrinks

  • lew44
  • · Replies 7 ·
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7

How Much Power Does Each Resistor Dissipate?

  • cwesto
  • · Replies 10 ·
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10

Moment of Inertia of a uniform rectangular coil

  • dpeagler
  • · Replies 1 ·
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1

Solving a Simple Beam Moment Calculation

  • iviv
  • · Replies 3 ·
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3

Solving for Pendulum Length: Mass of Bob Given

  • roam
  • · Replies 2 ·
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2

How Does Pipe Closure Affect Organ Pitch and Length?

  • megannnx3
  • · Replies 1 ·
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1

Solving for Index of Refraction: 110 Degrees Angle

  • matt72lsu
  • · Replies 5 ·
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5

What is the image height formed by the new diverging lens?

  • matt72lsu
  • · Replies 3 ·
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3

How to find average angular velocity?

  • kee23
  • · Replies 3 ·
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3

Work out where an object should be placed with regards to a magnifying glass

  • ghostbuster25
  • · Replies 1 ·
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1

Why Is Torque at Maximum Power Less Than Maximum Torque?

  • phigit
  • · Replies 8 ·
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8

Radius of Curvature Derivation Help

  • Grand
  • · Replies 5 ·
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5

How to find the minium coefficient of static friction?

  • ARJewell
  • · Replies 1 ·
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1

Rotation due to a magnetic field

  • dpeagler
  • · Replies 2 ·
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2

How to Calculate Radioactivity Activity

  • Magma828
  • · Replies 2 ·
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2

Questioning My Understanding of Entropy: A Turbine Example

  • danago
  • · Replies 3 ·
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3

How Do You Calculate Forces in Truss Members IK, JL, and JM?

  • ttiger2k7
  • · Replies 3 ·
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3

Momentum Problem: Find Velocities After Collision (2M, M, 5v, 3v)

  • Gregg
  • · Replies 9 ·
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9

Figuring Out How to Solve This Problem: Volume, Pressure, & Temp

  • slynn2008
  • · Replies 1 ·
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1

Rate of air pressure drop in a reservoir with a hole to a vacuum

  • superiority
  • · Replies 4 ·
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4

Calculating the Height of a Friend's Image from 4.2m Away

  • matt72lsu
  • · Replies 2 ·
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2

What is the formula for determining image distance in a convex mirror?

  • Knfoster
  • · Replies 2 ·
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2

Find the magnitude of the acceleration of the two masses.

  • mparsons06
  • · Replies 6 ·
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6

Voltage divider; missing capacitor

  • mathman44
  • · Replies 4 ·
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4
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2

What Is the Correct Kinetic Energy of Rotating Tires?

  • lew44
  • · Replies 1 ·
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1

Magnetic Force in a current carrying coil

  • nhartung
  • · Replies 1 ·
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1

Why do I get a different answer with the parallel axis theorem?

  • catmunch
  • · Replies 3 ·
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3

Solve RC Circuit Problem: Calculate Charge on Capacitor

  • hover
  • · Replies 7 ·
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7

Magnetic forces between parallel wires

  • aliaze1
  • · Replies 7 ·
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7

Introductory Calculus Based Physics, Help save Matt's life. He needs you.

  • Ebola_V1rus
  • · Replies 3 ·
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3

Derivation of Tangential Acceleration in Non-Uniform Circular Motion

  • drummerteenX
  • · Replies 3 ·
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3

Moment of Inertia and Linear/Angular Momentum

  • mparsons06
  • · Replies 3 ·
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3

S Help Solve Block Slides Down Ramp Problem

  • inutard
  • · Replies 7 ·
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7

Impulse-Momentum: Find Magnitude of Earth's Impulse

  • mybrohshi5
  • · Replies 10 ·
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10

Estimating Bandwidth for a Low-Pass Filter Using Real and Complex Numbers

  • mmmboh
  • · Replies 16 ·
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16

Find the velocity of the slower object after the collision

  • Trent2011
  • · Replies 1 ·
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1

Escape velocity of solar system projectile

  • azwraith69
  • · Replies 5 ·
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5

Quick Angular frequency question

  • sarahaha288
  • · Replies 2 ·
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2

What Happens When Two Blocks Collide on a Frictionless Surface?

  • crybllrd
  • · Replies 4 ·
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4
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4

Finding Final Velocity in Momentum and Velocity Problems

  • mybrohshi5
  • · Replies 2 ·
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2

Static Equilibrium of hinge Question

  • chara76
  • · Replies 1 ·
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1

Determine image distance and image height

  • Knfoster
  • · Replies 1 ·
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1

Latent Heat of Fusion/Vaporization

  • pcs106
  • · Replies 3 ·
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3

Materials and their use in structures

  • alexparker
  • · Replies 1 ·
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1

How Does Lifting a Chain Affect Its Gravitational Potential Energy?

  • Nivlac2425
  • · Replies 2 ·
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2

How Do You Experience Weightlessness on a Slope?

  • TyErd
  • · Replies 3 ·
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3
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7

A: Calculating Photon Count from Electrical Energy and Efficiency

  • wildredhead
  • · Replies 1 ·
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1

Tractor Pulling Contest: Determining Forces and Acceleration

  • Paymemoney
  • · Replies 23 ·
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23
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1

How to calculate impulse when velocity is angled?

  • okgo
  • · Replies 2 ·
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2

Determining Electric and Magnetic Fields: An Electron's Journey

  • dpeagler
  • · Replies 5 ·
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5

Current flowing through a copper wire

  • sweetdion
  • · Replies 2 ·
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2

Electric Potential with oscillation

  • lCaelestis
  • · Replies 2 ·
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2

Difficult expert magnetism problem

  • Power of One
  • · Replies 1 ·
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1

Need answered by tonight, Static Equilibrium

  • m_squared
  • · Replies 1 ·
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1

Momentum, what velocity do i use?

  • eulo0
  • · Replies 4 ·
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4

Time-dependent angular acceleration problem

  • Ceenaya19
  • · Replies 1 ·
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1

Calculating Force of Parallel Wires: 1 Wire & 1 Loop

  • Marioqwe
  • · Replies 1 ·
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1

How to Calculate Energy and Velocity of Pi Meson in D Meson Decay?

  • bon
  • · Replies 4 ·
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4

RC Circuit - Post-Lab Questions

  • chrisfnet
  • · Replies 3 ·
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3

Solve Crate Pressure w/ Mass: 2.50x10^3 Pa

  • jefgreen
  • · Replies 9 ·
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9

Pressure/Surface Area. Need to Find SA and Calc. Pressure.

  • jefgreen
  • · Replies 2 ·
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2

Potential Divider Problem: Calculating Vout and Thevenin Source Impedance

  • boileroo
  • · Replies 3 ·
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3

Satellite travelling away from Earth

  • scottlawsonbc
  • · Replies 2 ·
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2

Stealth aircraft coating thickness

  • Galahad43
  • · Replies 1 ·
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1

Ladder Equilibrium: Solving for Forces at Hinged Point?

  • azwraith69
  • · Replies 3 ·
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3

Polarization Prob | Reducing Intensity at 62° Angle

  • Galahad43
  • · Replies 1 ·
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1

How Much Energy is Needed to Convert Water to Ice Using a Carnot Refrigerator?

  • vincristine
  • · Replies 1 ·
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1

Ranking magnetic and electric forces on a charged particle

  • ihearyourecho
  • · Replies 11 ·
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11

Is there any normal stress on torsional member?

  • 385sk117
  • · Replies 1 ·
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1

Solving for friction with only acceleration

  • wmdavid
  • · Replies 1 ·
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1

Dipole term in a quadrupole expansion

  • yoghurt54
  • · Replies 5 ·
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5

What is the Torque Produced by a Beam and Sign on a Wall?

  • _wolfgang_
  • · Replies 4 ·
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4

Sun Losing Mass due to Energy Radiation

  • bon
  • · Replies 2 ·
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2

Spacing between slits in a diffraction grating w/o known wavelength

  • chanderson
  • · Replies 1 ·
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1

Resistors in Circuits: Understanding Their Role and Impact

  • lha08
  • · Replies 1 ·
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1

Where Is Zero Gravity Between Earth and Moon?

  • nilic1
  • · Replies 4 ·
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4

Motion with Uniform Acceleration

  • WannaLearn
  • · Replies 7 ·
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7

Tom and Jerry Space Travel: Calculating Speed & Weight

  • TyErd
  • · Replies 4 ·
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4