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

Linearizing a parabolic graph of a projectile motion

  • OhyesOhno
  • · Replies 17 ·
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17

What are the capacitance and inductance of the circuit?

  • rissa_rue13
  • · Replies 15 ·
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15

Total angular momentum quantum number

  • learning_phys
  • · Replies 1 ·
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1

Deriving the formula for double slit diffraction as in Young from Fraunhofer

  • NanakiXIII
  • · Replies 4 ·
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4

Aircraft drops package find vertical distance

  • qwerty3
  • · Replies 9 ·
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9

Flowerpot going up and down past a window

  • azure kitsune
  • · Replies 4 ·
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4

Two cars meeting - acceleration?

  • Caitlin.Lolz.
  • · Replies 4 ·
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4

Normal force between incline and tabletop with sliding block

  • tanzl
  • · Replies 4 ·
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4
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1

Understanding Velocity and Gravity in Basic Physics Equations

  • The_ArtofScience
  • · Replies 1 ·
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1

What Vertical Forces Act on a Leaning Ladder at the Point of Slipping?

  • blade_chong
  • · Replies 5 ·
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5

Eletric field within a cavity of a cylinder.

  • PenKnight
  • · Replies 1 ·
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1

How Do You Determine the Magnitude of Electric Charges on the X-axis?

  • kdaerdna
  • · Replies 8 ·
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8

Measuring and container math problem

  • pcfighter
  • · Replies 6 ·
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6

Average speed and velocity for a horse moving away then back toward trainer

  • wadesweatt
  • · Replies 2 ·
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2

How much rain fell on a 5 km × 9 km city with 1.1 cm rainfall?

  • wadesweatt
  • · Replies 4 ·
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4

Collision of bullet with mass hung from tree

  • devanlevin
  • · Replies 10 ·
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10
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2

Force exerted by tabletop on incline with sliding block

  • tanzl
  • · Replies 1 ·
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1

How do I determine the support reactions in a method of joints truss?

  • mikel lowery
  • · Replies 3 ·
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3

Calculating the mass and number of atoms of a structural I beam.

  • hsbc2003
  • · Replies 2 ·
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2

Is acceleration zero at the top of a ball's trajectory?

  • steviedee
  • · Replies 5 ·
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5

Work-Kinetic Energy Theorem question

  • tajmann
  • · Replies 3 ·
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3

Optics question: What two positions of a lens gives a sharp image?

  • LeeLoo
  • · Replies 3 ·
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3

How Does Wave Propagation Time Relate to Cable Length and Gravity?

  • pcjang
  • · Replies 1 ·
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1

Calculating the mass and number of atoms of a structural I beam

  • hsbc2003
  • · Replies 2 ·
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2

Fun Car Physics Problem. I swear it's wicked fun

  • Iamaskier721
  • · Replies 4 ·
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4

AP Physics Summer work problems

  • Iamaskier721
  • · Replies 6 ·
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6

What is the Terminal Voltage of a Battery?

  • LHC
  • · Replies 4 ·
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4
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29

Question-Electrostatics-Point charge and uncharged plate

  • GPhab
  • · Replies 1 ·
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1

Electric field and force from two point charges on a third charge

  • vip_uae
  • · Replies 20 ·
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20
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1

Current from magnetic configuration

  • AdamNailor
  • · Replies 8 ·
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8

Electormagnitics Quests relating coaxil cables and other

  • vip_uae
  • · Replies 2 ·
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2

Calculating Main Sequence Lifetime.

  • adwodon
  • · Replies 1 ·
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1

Is my solution correct? About momentum

  • noppawit
  • · Replies 1 ·
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1

How Do Hinges Affect the Horizontal Force on a Door?

  • HarrisonColes
  • · Replies 1 ·
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1

Magnetic field between two parallel vertical wires 12 cm apart

  • shanie
  • · Replies 13 ·
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13

Segment and joint angles problem.

  • clokey34
  • · Replies 2 ·
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2

AP Physics: Solving Average Acceleration Problem

  • azure kitsune
  • · Replies 2 ·
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2

Estimate the binding energy of the H2 molecule

  • ksachs
  • · Replies 3 ·
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3

Finding Index of Refraction (n) Using θi and θr

  • shinemono
  • · Replies 2 ·
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2

Trouble with drawing vector diagrams.

  • dinayork
  • · Replies 2 ·
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2

Archer fish projectile motion launch angle inconsistency

  • TimH
  • · Replies 4 ·
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4

Does the speed of sound depend only on temperature?

  • maithie
  • · Replies 2 ·
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2

When will two ships collide in reference frame of Earth?

  • matt14690
  • · Replies 3 ·
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3

Which of position, distance, and displacement are vectors?

  • golden_acorn
  • · Replies 9 ·
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9
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4

Drawing equipotential contour map from voltage profile

  • fredrick08
  • · Replies 19 ·
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19

Finding launch angles for projectile passing through a point

  • deltapapazulu
  • · Replies 2 ·
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2

How Many Electrons Needed to Balance Gravitational Force Between Two Balls?

  • devanlevin
  • · Replies 4 ·
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4

Where Is the Electric Field Zero in This Dipole Setup?

  • Point Conception
  • · Replies 8 ·
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8

How Is Tension Calculated in a Pendulum with Varying Angles?

  • devanlevin
  • · Replies 3 ·
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3

Spaceship roundtrip to 8 light years away in one year of ship time

  • matt14690
  • · Replies 2 ·
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2

Calculating the Speed of a Moving Ship in Special Relativity

  • matt14690
  • · Replies 11 ·
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11

Tossing an item up a slope, calculating it's length from start to landing

  • Molecular
  • · Replies 1 ·
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1

Relative velocity and Michelson Morley experiment

  • Oerg
  • · Replies 8 ·
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8

Power needed to accelerate a chain.

  • JustRandy
  • · Replies 11 ·
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11

Net force, resistance, and work in a box being dragged at constant velocity

  • Jacko_065560
  • · Replies 5 ·
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5

What fraction of a centimeter equals 1.0 micrometers

  • afcwestwarrior
  • · Replies 1 ·
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1

Converting kilometers to micrometers

  • afcwestwarrior
  • · Replies 9 ·
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9

Why does a mass fall 2mg/k on a spring, not mg/k?

  • delecticious
  • · Replies 5 ·
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5

Energy Conservation in Oscillatory Motion

  • kaka2007
  • · Replies 2 ·
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2

Application of Aristotle with free fall

  • Gear2d
  • · Replies 1 ·
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1

Change in momentum of railcart when ball bounces off wall

  • sms14
  • · Replies 6 ·
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6

Projectile Motion, find max height, TWO POSSIBLE ANSWERS?

  • iceman99
  • · Replies 13 ·
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13

What Are the Possible Frequencies of Oscillations for a Clamped String?

  • Pranas Juozas
  • · Replies 5 ·
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5

Calculating Coefficient of Static Friction in Simple Harmonic Motion

  • hemetite
  • · Replies 11 ·
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11

Why Is the Tension in the Rope Not Matching the Book's Calculation?

  • Gear2d
  • · Replies 1 ·
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1

Conservation of Momentum in Moving Buckets of Water

  • Gear2d
  • · Replies 3 ·
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3
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2

SHM question with no other details

  • hemetite
  • · Replies 11 ·
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11

Double-slit experiment with radio towers

  • gigli
  • · Replies 1 ·
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1
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4

How Do You Solve a Projectile Motion Problem with Calculus?

  • dominus96
  • · Replies 3 ·
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3

Calculating Electric Force and Distance Between Two Charges

  • shanie
  • · Replies 4 ·
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4

Calculating Electric Force Between Charges in a Dielectric Medium

  • Velocity.
  • · Replies 2 ·
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2

Acceleration of 80kg vs 65kg mass with 7.5HP go-kart

  • oblit
  • · Replies 7 ·
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7

What is the Maximum Mass M That Can Be Balanced on Two Wedges Without Slipping?

  • learning_phys
  • · Replies 7 ·
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7

Radiation intensity and distance?

  • gigli
  • · Replies 4 ·
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4

Solv'g Displacement Diff for 2 Points w/ 30 Deg. Phase Diff Given f, v

  • tigger88
  • · Replies 1 ·
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1

How Does a Car Door's Angular Velocity Change as It Slams Shut?

  • i<3math
  • · Replies 1 ·
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1

Voltage at Halfway Point Between Point Charges in an Equilateral Triangle

  • rissa_rue13
  • · Replies 3 ·
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3

Radius of light circle from underwater point source at 0.525 m depth

  • gigli
  • · Replies 9 ·
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9

Magnetic moment of an orbitting charge

  • wbrigg
  • · Replies 2 ·
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2
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1

Simple pendulum, det the change of its period?

  • hemetite
  • · Replies 11 ·
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11

Projectile motion in inclined planes?

  • somnambulist
  • · Replies 1 ·
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1

VCE Physics 2006 Exam Q3: Transistor Questions

  • sanado
  • · Replies 2 ·
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2

How Does Switching a Magnetic Field Affect Coil Flux and Induced Current?

  • TheKovac
  • · Replies 1 ·
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1

Spring Kinematics and Electricity/magnetism properties.

  • Plutoman
  • · Replies 2 ·
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2

Body dropped from tower travels half distance in last second

  • spsundaram
  • · Replies 2 ·
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2

Motorcycle Velocity Difference and Acceleration Problem

  • Caitlin.Lolz.
  • · Replies 1 ·
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1

Solved It: How I Fixed a Complex Problem

  • jamespeterstu
  • · Replies 1 ·
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1

Pin frame BCFGD with 20 kN vertical load at C and 10 kN horizontal load at D

  • geoffishere
  • · Replies 9 ·
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9

Velocity of air in compressed air tube

  • Aqueous
  • · Replies 4 ·
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4

Air Wedge radius of the wire Problem

  • Zukie91
  • · Replies 7 ·
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7

Interpreting displacement-time graph with positive and negative slopes

  • Gear2d
  • · Replies 5 ·
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5

Angular Diameter of Sun: Radius, Area, and Power

  • yiuscott
  • · Replies 2 ·
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2