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

Finding a relationship for the ball's speed with the following clues.

  • GreenTea09
  • · Replies 1 ·
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1

Lagrangian Mechanics, bead on a hoop

  • dumbperson
  • · Replies 26 ·
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26

Calculating Q for Shear Flow at Box Girder Points

  • MMCS
  • · Replies 5 ·
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5

Calculating Vertical Stone Throw Intersection Time and Altitude

  • postfan
  • · Replies 5 ·
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5

Which pole of a suspended magnet aligns with external field?

  • fredrogers3
  • · Replies 1 ·
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1

Static friction(Impending motion)

  • aerograce
  • · Replies 1 ·
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1

How Does Newton's 3rd Law Apply When Pushing a Wall?

  • hsphysics2
  • · Replies 1 ·
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1

How Is Tension Calculated When Lifting a Bowling Ball?

  • physicsnobrain
  • · Replies 5 ·
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5

Linear algebra ordered basis problem

  • priyathh
  • · Replies 3 ·
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3

Solve following problems by using energy conservation theory

  • olebull
  • · Replies 1 ·
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1

Shadow of vertical pole in water with refraction

  • MrMoose
  • · Replies 4 ·
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4

What Is the Initial Speed of a Horizontally Thrown Stone from Height h?

  • Radarithm
  • · Replies 7 ·
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7

Polarizing sheets with 10% transmitted intensity

  • MrMoose
  • · Replies 4 ·
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4

Constraint equations for mobile pulley with three masses

  • CAF123
  • · Replies 47 ·
2
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47

How Does Current Frequency Affect Wire Oscillation in a Magnetic Field?

  • i_ammitija
  • · Replies 3 ·
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3

Tension in ropes between accelerating bodies

  • quietbang
  • · Replies 4 ·
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4

Soccer ball rebouncing of the goal post

  • brundlfly
  • · Replies 1 ·
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1
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2

Tension in a Pendulum String - Oh my

  • Engineering101
  • · Replies 4 ·
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4

Potential of a dipole in E field

  • raggle
  • · Replies 1 ·
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1

How Does the Formula for Acceleration in a Pulley System Work?

  • Yshai24
  • · Replies 2 ·
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2

Roller Coaster Physics in a Gravity-Less Park?

  • murrskeez
  • · Replies 1 ·
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1

What are the Corresponding Reaction Forces in a Suspended Bowling Ball System?

  • physicsnobrain
  • · Replies 12 ·
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12

Ball and pendulum collision: finding velocities from swing height

  • astru025
  • · Replies 8 ·
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8

Distance Needed to Reach Terminal Velocity

  • elli
  • · Replies 2 ·
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2

Circular Motion: Deriving r for Two Objects on a String

  • makerfeldt
  • · Replies 2 ·
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2

Police car overtaking speeder with acceleration

  • DrAnteater
  • · Replies 1 ·
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1

When does the mass of object comes into projectile motion equations?

  • survivorboiii
  • · Replies 1 ·
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1
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8

Is Zero Net Force Required for Momentum Conservation?

  • RevX
  • · Replies 1 ·
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1

What Determines the Acceleration of a Box on a Moving Plank?

  • asaspades
  • · Replies 2 ·
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2

Did the ball travel far enough to make the goal?

  • azukibean
  • · Replies 8 ·
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8

Find scalar p and vector C from A - 2B = pC

  • damdamct
  • · Replies 6 ·
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6

When is a tossed ball in freefall between the acceleration peaks?

  • komender
  • · Replies 4 ·
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4

Conservation of Energy in Conjunction With Momentum

  • Bashyboy
  • · Replies 15 ·
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15

Determine the magnitude of the magnetic field.

  • NasuSama
  • · Replies 5 ·
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5

Friction of a rope wound around a stationary rod

  • TheLil'Turkey
  • · Replies 10 ·
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10

Radius of centripetal force when on an angle.

  • Esoremada
  • · Replies 2 ·
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2

Finding acceleration and tension on an incline

  • soysauce
  • · Replies 2 ·
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2

How can I determine the force at support B in a rigid bar system?

  • coconut62
  • · Replies 3 ·
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3

What are my units when finding % diff. In kinetic energy?

  • astru025
  • · Replies 5 ·
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5

Motion in a Magnetic Field problem

  • kjlchem
  • · Replies 4 ·
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4

Relating to potential energy of a spring and mass on inclined plane

  • NewSoul
  • · Replies 4 ·
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4

Why Is Work the Same for Different Distances on an Inclined Plane?

  • lovelyrwwr
  • · Replies 2 ·
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2

What Forces Determine the Sliding of a Block on a Wedge?

  • makerfeldt
  • · Replies 2 ·
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2

How Do You Calculate Vector Components of a Rocket's Velocity?

  • josephcung
  • · Replies 2 ·
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2

Find minimum force to move block

  • the_sense
  • · Replies 4 ·
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4

What are the vector components of a rocket's impact velocity?

  • josephcung
  • · Replies 1 ·
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1
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9

Why is speed not conserved when external forces cancel out?

  • coconut62
  • · Replies 2 ·
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2

A block spins around a circle with thrust

  • oneamp
  • · Replies 5 ·
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5

Deriving the Equation v^2 = u^2 + 2as

  • Marcsmeets
  • · Replies 13 ·
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13

Find beats formula using imaginary parts

  • mbigras
  • · Replies 7 ·
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7

What is the effect of overdampening in a circuit?

  • kickthatbike
  • · Replies 7 ·
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7

What Is the Final Temperature in an Adiabatically Expanded Air Chamber?

  • CAF123
  • · Replies 26 ·
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26

Calculating Tension in Frictionless and Massless Pulley Systems

  • BMcC
  • · Replies 6 ·
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6

Vertical projectile motion with 300m drop and 0.04kg object

  • TheRedDevil18
  • · Replies 15 ·
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15

Finding Surface Charge Densities in a Spherical Conductor

  • MostlyHarmless
  • · Replies 17 ·
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17

Woman jumping onto a skateboard: conservation of momentum

  • astru025
  • · Replies 6 ·
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6

Time period of oscillation and gravitation

  • Saitama
  • · Replies 40 ·
2
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40

Check work on incline energy and power calculations

  • TheRedDevil18
  • · Replies 7 ·
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7

Sketch of energy - height graph

  • songoku
  • · Replies 2 ·
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2

How to Convert a Velocity-Time Graph to a Position-Time Graph?

  • pebbles3
  • · Replies 4 ·
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4

Why does peeling off a plaster quickly hurt less using impulse?

  • Fabric
  • · Replies 1 ·
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1

Thermodynamics - example with answer

  • manal950
  • · Replies 6 ·
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6

Does Opposite Acceleration Decrease Car Speed?

  • chrissy9624
  • · Replies 4 ·
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4

The wave fuction for particle in a box

  • VHAHAHA
  • · Replies 6 ·
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6

What is the distance from the pivot when the seesaw is balanced?

  • Tepictoc
  • · Replies 27 ·
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27

Thermodynamics when work being negative or positive

  • manal950
  • · Replies 4 ·
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4

Finding work and velocity through acceleration

  • Pudim
  • · Replies 1 ·
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1

Find V(t) of train car with changing mass.

  • oddjobmj
  • · Replies 12 ·
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12

Grade 12 Physics: Banked Roads and Friction Analysis

  • pinkyboo
  • · Replies 2 ·
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2

Time derivatives of polar unit vectors

  • iScience
  • · Replies 6 ·
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6

Distance traveled sliding down incline

  • learnitall
  • · Replies 7 ·
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7

Diffraction grating with combination light

  • Hapablap
  • · Replies 1 ·
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1

Finding the Displacement Vector from 3 Given Vectors

  • fortifymagicka
  • · Replies 2 ·
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2

Centripetal force problems for dynamics

  • pinkyboo
  • · Replies 3 ·
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3

Experiment question- energy consumed from single shower

  • bigpapi4153
  • · Replies 1 ·
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1

Theoretical Uniform Magnetic and Electric Field

  • Yosty22
  • · Replies 1 ·
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1

Multiplicity of a two state system

  • d2x
  • · Replies 1 ·
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1

Kinematics and finding acceleration

  • JohnCy
  • · Replies 5 ·
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5

Modeling Thunderclouds with Point Charges and Conducting Planes

  • CAF123
  • · Replies 1 ·
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1
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3

A momentum question? Not too sure

  • noobphysicist
  • · Replies 23 ·
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23

Derivation of error formula for gradient from least squares fit

  • BOAS
  • · Replies 1 ·
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1

Newton's second law clarinet problem

  • vanitymdl
  • · Replies 17 ·
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17

Find the work and heat transferred in a carnot cycle.

  • Kelsi_Jade
  • · Replies 7 ·
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7

Determine Radiation pressure at angle given Perpendicular Pressure

  • MrMoose
  • · Replies 3 ·
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3

Solving for Building Height and Time in Horizontal Projectile Motion

  • harujina
  • · Replies 3 ·
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3

Gauss's Law for Spherical Symmetry

  • Vectorspace17
  • · Replies 3 ·
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3

Mass and Energy of Object that struck Earth and created moon

  • bowlbase
  • · Replies 2 ·
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2

How Is Oscillation Frequency Calculated in a Parabolic Potential?

  • AdrianHudson
  • · Replies 8 ·
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8

Capacitance of two parallel plate capacitors

  • Violagirl
  • · Replies 7 ·
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7

Calculate the avg speed for the ENTIRE trip.

  • physicsnobrain
  • · Replies 9 ·
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9

Forces, find net with velocity and distance

  • yogoes123
  • · Replies 11 ·
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11

Solve Min Velocity for Ball Not to Touch Hemispherical Rock

  • 012anonymousx
  • · Replies 1 ·
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1

Average force on baseball hit by bat

  • astru025
  • · Replies 2 ·
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2

Electric potential graph analysis

  • freshcoast
  • · Replies 4 ·
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4

Relating Light Angles in a High-Speed Reference Frame

  • bowlbase
  • · Replies 6 ·
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6

Two projectiles shot toward each other: when do they collide?

  • FaraDazed
  • · Replies 9 ·
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9