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

Translational Speed of Cylinder on Inclined Plane: Find the Answer

  • bns1201
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Discrepancy bet. maxwell + circuit notation w/ inductors?

  • azi100
  • · Replies 15 ·
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15

At what time did the murder take place? (Differential Equations)

  • IRNB
  • · Replies 5 ·
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5

Tension in String: Solving 10kg Block Problem

  • ride4life
  • · Replies 5 ·
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5

How Does Doubling the Tension Affect the Frequency of a Vibrating Wire?

  • jsalapide
  • · Replies 4 ·
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4

Interference of two radio waves

  • username12345
  • · Replies 1 ·
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1

Rotating governor (rotational motion)

  • theydidntname
  • · Replies 1 ·
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1

Velocities of three billiard balls after cue ball collision

  • balingwhale
  • · Replies 3 ·
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3

Calculating acceleration due to gravity on an alien planet

  • toastie
  • · Replies 19 ·
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19

Calculating Earth's Radius from Sunset and Stop Watch Measurements

  • Esran
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17
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2

How much time and distance is covered on a trip with varying speeds?

  • balling12
  • · Replies 10 ·
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Can time dilation formula apply to objects moving slower than light?

  • hippopviolin
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2

What is the Centroid of a Cylindrical Cone?

  • zandria
  • · Replies 2 ·
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2

Planck's Constant Conversions: J s to eV s

  • JayBird
  • · Replies 3 ·
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3

What Type of Energy is Represented by A in a Hydroelectric System?

  • UNknown 2010
  • · Replies 2 ·
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2

Having Trouble Converting Units?

  • SirNostalgic
  • · Replies 3 ·
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3

Finding the Height of a Water Tank

  • tsumi
  • · Replies 4 ·
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4

Calculating Shear Stress in a Steel Drum

  • mattbreck
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2
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2

What Is the Angle When an Object Loses Contact with a Sphere?

  • mistymoon_38
  • · Replies 2 ·
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2

Projectile motion related numerical

  • shahzadzai
  • · Replies 4 ·
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4

Electric Field Intensity and Potential Difference

  • Illuminitwit
  • · Replies 6 ·
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6
  • Poll Poll

Projectile Motion : The Impossible Problem

  • tennisame6060
  • · Replies 2 ·
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2

Multiloop Circuit Total Resistance

  • stufaro
  • · Replies 5 ·
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5

Electrostatic Field concept question

  • physics213
  • · Replies 6 ·
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6

Physics of Spring with Electrostatics

  • SpringPhysics
  • · Replies 2 ·
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2

Electric Potential: Solve for Energy to Move -5uC Charge to Infinity

  • bob19841984
  • · Replies 1 ·
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1

Calculating Pressure Increase from Ice Expansion in an Engine Block

  • zaqwer
  • · Replies 1 ·
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1

Was the collision elastic or not?

  • jaron
  • · Replies 3 ·
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3

Algebraic expressiong for two blocks

  • jenador
  • · Replies 1 ·
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1

Can Projectile Motion with Drag be Calculated with a Formula?

  • patrickbc
  • · Replies 15 ·
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15

Solutions to schrodinger equation

  • vaibhav1803
  • · Replies 4 ·
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4

How Far Will the Ice Cube Travel Up the Slope After Being Released?

  • talaroue
  • · Replies 12 ·
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12

Work done by quadratic air resistance.

  • GS416492
  • · Replies 1 ·
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1

Measuring Void Volume in a 1-L Cylinder of Steel Beads

  • jwill2754
  • · Replies 1 ·
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1

Bohr model hydrogen potential energy

  • muffintop
  • · Replies 1 ·
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1

Relativistic Volume Calculation of Moving Aluminum Cube

  • Avis
  • · Replies 2 ·
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2

Special relativity of a rocket

  • vorcil
  • · Replies 1 ·
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1

First law of thermodynamics and work done

  • fly_bo1
  • · Replies 1 ·
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1

How does air resistance affect the soccer ball's trajectory?

  • Demson
  • · Replies 2 ·
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2

Ball in Horizontal Circle (Rotational Kinematics)

  • PrideofPhilly
  • · Replies 1 ·
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1

A Block Sliding Down an Incline

  • PrideofPhilly
  • · Replies 1 ·
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1

Walking in a Boat (Center of Mass?)

  • PrideofPhilly
  • · Replies 1 ·
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1

What is the average velocity for a bicycle's trip?

  • tag16
  • · Replies 3 ·
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3

Hoop with seven spokes finding Inertia

  • physics10189
  • · Replies 13 ·
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13

Angle between equal-magnitude vectors when |A+B| is 100 times |A-B|

  • abhikesbhat
  • · Replies 3 ·
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3

An Inelastic Collision Crash Course

  • PrideofPhilly
  • · Replies 1 ·
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1

Tension Problem (two ropes + weight)

  • DarkNightwing
  • · Replies 7 ·
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7

Charge moving in cyclotron orbit

  • tarellan
  • · Replies 2 ·
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2

Acceleration of gravity on an unknown planet.

  • flysae
  • · Replies 1 ·
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1

Spring Scale, the force will the scale read?

  • flysae
  • · Replies 2 ·
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2

Centripetal Acceleration circular disk

  • Simple Echo
  • · Replies 6 ·
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6
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1

Net electric field from three point charges at distance a

  • tatiana_eggs
  • · Replies 1 ·
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1

Double Ball Drop: Solve Elastic Collision Velocity Problem

  • Gibanga
  • · Replies 2 ·
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2

Linear acceleration using atwood machine

  • physics10189
  • · Replies 6 ·
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6

Artificial Gravity and a Rotating Space Station

  • whaaat919
  • · Replies 2 ·
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2

Magnitude of total force of stone on a hand

  • tag16
  • · Replies 1 ·
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1

What is the Charge Distribution of Protons in Terms of Quarks?

  • manjula
  • · Replies 3 ·
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3

Width of first-order bright fringe in single-slit diffraction

  • 9giddjl
  • · Replies 2 ·
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2

Capacitance of concentric shells

  • kenneth1100
  • · Replies 2 ·
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2

Velocity and Friction Question

  • AshNZ
  • · Replies 1 ·
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1

What is the Relationship Between Weight and Air Pressure?

  • avoinvents
  • · Replies 17 ·
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17

Bullet passing through two holes

  • physics10189
  • · Replies 1 ·
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Calculate Charge to Mass Ratio from J.J. Thomson's Experiment

  • Linday12
  • · Replies 3 ·
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3

Effect on velocity if force stays constant and mass is changed

  • bestusername
  • · Replies 4 ·
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4

What is the total number of states?

  • Nex3vent
  • · Replies 1 ·
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1

Radioactive decay and Radium extraction calculation

  • Civy_MEO
  • · Replies 1 ·
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1
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3

Position of glider on an air track

  • brunettegurl
  • · Replies 6 ·
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6

How Many Wavelengths of Yellow-Green Light Fit in 0.500 mm?

  • roxxyroxx
  • · Replies 3 ·
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3

Charge distribution on inner and outer radii of a conductive shell

  • Dell
  • · Replies 2 ·
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2

How Do Pulley Systems Affect Mass Acceleration and Tension?

  • issacnewton
  • · Replies 8 ·
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8
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4

Solving Motion in a Plane: Find Velocity at t=7.6s

  • tag16
  • · Replies 1 ·
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1
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1

What Is the Maximum Range of a Projectile on an Inclined Plane?

  • hadroneater
  • · Replies 2 ·
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2

Calculating Speed: Solving a Physics Wave Question | Homework Help

  • roxxyroxx
  • · Replies 2 ·
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2

Dimensional Analysis: Combining 3 Variables

  • Saladsamurai
  • · Replies 3 ·
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3

Speed of a star in a binary system from spectral shift

  • roxxyroxx
  • · Replies 3 ·
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3

The Correct Time on the Clock During the Presentation Ceremony?

  • prime-factor
  • · Replies 3 ·
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3

Longitudinal and transverse waves

  • Rashid101
  • · Replies 1 ·
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1

Graphing Potential and Kinetic Energy of an Oscillating Particle

  • sousou_88
  • · Replies 10 ·
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10
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1

Wevelength of sinusoidal wave generated by oscillator

  • Rashid101
  • · Replies 4 ·
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4

What is the student's final speed after being launched by a compressed spring?

  • brunettegurl
  • · Replies 7 ·
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7

Using static friction to find tension

  • jenador
  • · Replies 1 ·
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1

Evidence for number of different colour charges

  • indie452
  • · Replies 1 ·
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1

A Tension problem with no known angle given

  • jenador
  • · Replies 3 ·
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3

What is the force exerted on an elastic object, on elastic collision?

  • Oldor
  • · Replies 5 ·
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5

How Is k Normalized in Schrodinger's Equation?

  • bumclouds
  • · Replies 2 ·
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2

Finding the horizontal accerelation using forces

  • jenador
  • · Replies 4 ·
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4

What Determines the Block's Motion on an Accelerating Wedge?

  • zeena2009
  • · Replies 1 ·
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1

Physics: Why Waves in Fluids are Longitudinal

  • Rashid101
  • · Replies 1 ·
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1

What is the Maximum Magnitude of a Vector Sum?

  • vorse
  • · Replies 5 ·
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5
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8

Double Slit, different wavelengths change in X

  • rss14
  • · Replies 5 ·
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5

Basketball projectile motion with initial height 2.3m

  • bob 911
  • · Replies 3 ·
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3