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

Solving Optic Lens Problem: Find Object Distance for Magnification of 75

  • mithil03
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1

Spring Force as Centripetal Force?

  • lavenderbaby
  • · Replies 4 ·
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4

Calculating Repulsive Force Between Parallel Wires

  • cdotter
  • · Replies 2 ·
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2

Kinamatics problem oh physics elders

  • Zizfizziks
  • · Replies 1 ·
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1

Normal force on 80kg pilot in circular loop at 150m radius

  • Telemachus
  • · Replies 12 ·
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12

Newton's Third Law Problem - Tightrope

  • danshawvassar
  • · Replies 1 ·
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1

Normal force as centripetal force

  • Telemachus
  • · Replies 2 ·
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2

Need to find velocity of an object I pushed off a table

  • Coronita
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3

How to draw a qualitative a vs. t graph

  • swimmer59
  • · Replies 3 ·
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3

What is the Kinectic Energy of the baseball?

  • ohheytai
  • · Replies 3 ·
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3

Non-uniform circular motion question

  • neshepard
  • · Replies 3 ·
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3

Magnetic repulsion between 2 wires?

  • taylor.simon
  • · Replies 1 ·
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1

Impulse: Finding the average force

  • impstudies
  • · Replies 3 ·
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3

Maximum Voltage without causing Dielectric Breakdown?

  • mli273
  • · Replies 3 ·
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3

What Is the Angle When the Bean Is at Vertical Equilibrium?

  • cheater1
  • · Replies 14 ·
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14

Mechanics Problems max, instant. v, etc.

  • Shoelace Thm.
  • · Replies 2 ·
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2

What is the Maximum Weight of a Concrete Block Underwater?

  • Delhi
  • · Replies 2 ·
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2

Finding distance with the conservation of energy equation

  • asdf12321asdf
  • · Replies 2 ·
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2
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8

SOS: Solving the Spring Constant of an Elastic Cord

  • Sean1082
  • · Replies 3 ·
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3

Stopping Distance with Vi and Coefficient of friction.

  • kitenyos
  • · Replies 9 ·
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9

Calculating Distance Traveled with Uniform Acceleration

  • cglrtsn
  • · Replies 1 ·
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1

How Do You Solve These Diffraction Problems?

  • mjsteves
  • · Replies 2 ·
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2

Projectile motion: cannon at 40 m/s and 40 degrees

  • runningirl
  • · Replies 9 ·
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9

How Can I Calculate the Velocity of Propagation for an RG58 Cable?

  • ~Sam~
  • · Replies 1 ·
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1

How Thick Is the Oil Film for Red and No Light Interference?

  • quanticism
  • · Replies 3 ·
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3

Tension in ropes connecting two blocks on an incline

  • DrummingAtom
  • · Replies 1 ·
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1

Amplitude in plane x=y from two speakers placed on x and y axes.

  • Saraphim
  • · Replies 2 ·
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2

Thermodynamics - work in adiabatic, isothermal, isobaric

  • eprparadox
  • · Replies 1 ·
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1

Angular velocity/acceleration problem

  • NewbEngineer
  • · Replies 1 ·
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1

Coils rotating in a magnetic field find maximum emf and magnetic feild strength

  • taylor.simon
  • · Replies 1 ·
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1

Parallel RC circuit: combining impedances vs phasor addition

  • Tusike
  • · Replies 2 ·
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2
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12

Curvature radius of alpha and beta particles

  • ProPatto16
  • · Replies 2 ·
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2

Finding the Speed of Rain in Relative Motion

  • kalupahana
  • · Replies 5 ·
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5

Work done in an adiabatic process and isothermals

  • Amith2006
  • · Replies 10 ·
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10

What is the mangitude field inside the inner solenoid?

  • jersey
  • · Replies 6 ·
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6

Electric Potential questions and work done

  • jersey
  • · Replies 4 ·
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4

Energy stored in the electric field of a capacitor

  • jersey
  • · Replies 2 ·
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2

Calculating Initial Speed of a Rocket Launch

  • Potato21
  • · Replies 9 ·
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9

Astronaut's Apparent Weight in Different Gravitational Fields

  • sona1177
  • · Replies 1 ·
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1

Finding Time in an Oscillation Problem

  • sheiky989
  • · Replies 1 ·
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1

Conservation of Rotational Momentum Merry-Go-Round Problem

  • Freye
  • · Replies 7 ·
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7

Finding Bearing and Distance using Calculator?

  • ScieneBoy
  • · Replies 11 ·
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11

Power lost in transmission lines

  • pat666
  • · Replies 2 ·
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2

Normal Force at the Bottom of a Track

  • sona1177
  • · Replies 2 ·
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2

What is the Breaking Stress of Steel Ropes for Lifting Heavy Loads?

  • karmatic
  • · Replies 4 ·
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4

Find tension of rope. Frictionless system.

  • JohnKSmith
  • · Replies 1 ·
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1

How Fast Can a 1967 Corvette Go Using Full Power in 6 Seconds?

  • scytherz
  • · Replies 2 ·
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2

How Do You Determine Temperatures at Specific Points in a PV Cycle?

  • mneox
  • · Replies 1 ·
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1

Why is less force needed to pull a block at an angle compared to pushing it?

  • DrummingAtom
  • · Replies 2 ·
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2

How Does Photon Energy Relate to Mass Loss in Particle Decay?

  • vladimir69
  • · Replies 2 ·
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2

Conversion from Polar to Cartesian equations

  • Helena54321
  • · Replies 2 ·
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2
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7

Maximum speed for a car on top of a circular hill without losing contact

  • Coronita
  • · Replies 16 ·
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16

Banking angle for a 500m curve at 90 km/hr

  • Coronita
  • · Replies 6 ·
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6

Hydraulic Piston Supporting a 500lb weight

  • AsuraSky
  • · Replies 2 ·
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2

Three particles break off after an explosion

  • hime
  • · Replies 1 ·
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1

Ball tossed 12m high and falling on moving object at 20m/s

  • Secretdude
  • · Replies 2 ·
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2

How Do You Calculate the Momentum of a Proton in MeV/c?

  • J.live
  • · Replies 5 ·
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5

Object falling with 1/4 of height in the last second

  • Brunno
  • · Replies 13 ·
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13

What Defines the Total Momentum in the Center of Mass Frame?

  • Thefox14
  • · Replies 1 ·
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1

How to find the dimensions of a particle moving in one dimension?

  • kratos
  • · Replies 2 ·
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2

Romeo tossing pebbles horizontally at Juliet's window 4.5m high

  • tica86
  • · Replies 13 ·
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13

Force of a roller coaster track on a car

  • asdf12321asdf
  • · Replies 2 ·
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2

Find Current with Kirchhoff's Rules

  • musiliu
  • · Replies 1 ·
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1

Solving Newton's 2nd Law: M1 and M2

  • jaytm2291
  • · Replies 1 ·
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1

Hammer Throw Homework: Find Force Applied by Athlete

  • sona1177
  • · Replies 6 ·
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6

Lightly Damped Simple Harmonic Oscillator

  • DrDank
  • · Replies 1 ·
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1

Relation between centre of mass and center of gravity?

  • manoj mishra
  • · Replies 1 ·
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1

Estimating the spacing between gas molecules

  • tom_l
  • · Replies 2 ·
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2

I can not calculate the displacement

  • maro_toni
  • · Replies 6 ·
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6

Finding net force on a ball moving in a circle at t=0

  • ohheytai
  • · Replies 14 ·
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14

Application of Gauss' Laws: Large area parallel plate capacitor

  • knowlewj01
  • · Replies 1 ·
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1

Uncertainty principle free particle

  • semc
  • · Replies 5 ·
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5

Finding velocities for two cyclists racing 6 km with time difference

  • quantum_enhan
  • · Replies 5 ·
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5

How far will a car travel in 15 min at 20 m/s?

  • maro_toni
  • · Replies 4 ·
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4

Perpendicular component of momemtum?

  • ohheytai
  • · Replies 2 ·
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2

Charge density - parallel plates

  • pat666
  • · Replies 6 ·
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6

Problem on Conservation of energy

  • scytherz
  • · Replies 1 ·
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1
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4

Question involving eigenvectors

  • dingo_d
  • · Replies 4 ·
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4

Full-wave rectification circuit question

  • K29
  • · Replies 2 ·
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2

Solving for Pendulum Bob's d from Length L

  • auk411
  • · Replies 5 ·
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5

Baseball throw velocity using shoulder muscle mechanics

  • Searchme
  • · Replies 4 ·
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4

Find the magnitude and direction of the force

  • jersey
  • · Replies 2 ·
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2

How to Find Cx and Cy Given Perpendicular and Scalar Product Conditions?

  • snaamlsa
  • · Replies 12 ·
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12

Find the work in pumping the water out fo the tank

  • Punkyc7
  • · Replies 4 ·
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4

Finding Displacement of Blocks Connected by a Rope on an Inclined Plane

  • Patdon10
  • · Replies 8 ·
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8

Simple projectile motion problem

  • jayman011
  • · Replies 1 ·
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1

Solving for Ball Speed at Lowest & Highest Point of Arc

  • Trekky0623
  • · Replies 2 ·
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2

Finding the angle for maximum range with a constant initial velocity

  • Failshire
  • · Replies 1 ·
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1

How Fast Does an Arrow Travel When Shot Horizontally?

  • runningirl
  • · Replies 2 ·
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2

Problem on Rotational mechanics / Conservation of angular momentum.

  • cantgetaname
  • · Replies 1 ·
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1

Calculate the force of Earth's gravity on a spacecraft

  • cabrady92
  • · Replies 1 ·
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1

Maximum asteroid radius for 20 m/s circular orbit

  • pinkybear
  • · Replies 9 ·
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9

Elevator and spring scale question

  • neshepard
  • · Replies 9 ·
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9

What is the rating of the bulb?

  • TheDanny
  • · Replies 6 ·
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6

Lab for finding acceleartion vectors for circular motion

  • chroncile
  • · Replies 1 ·
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1

Work of pulling an upject up a ramp.

  • Jack_Straw
  • · Replies 1 ·
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1