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.

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I attached the problem.In the solutions my professor posted, he

  • pyroknife
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6

Proper Calculation of Acceleration in Two-Force Problems

  • Supernejihh
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2

What is the Apparent Weight on a Ferris Wheel?

  • mmajames
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1

Integration of Acceleration to get the height of a building

  • kli53
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1

Easy electro charge question, calculation error?

  • Paulkaryote
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1

Foucault Speed of Light Experiment

  • S_Flaherty
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1

Electric field between two large sheets

  • Nivlac2425
  • · Replies 1 ·
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1

Determine Charge with Spring between Particles

  • kgal
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2

Surface charge densities on two conducting plates.

  • theBEAST
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5

Finding the Polar Form of a Complex Number Using Euler's Relation

  • aaj92
  • · Replies 10 ·
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10

Three objects on a hanging pulley system

  • Koscher
  • · Replies 2 ·
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2

Solve Stopping Potential when 250 nm Light Hits Zinc Plate

  • Tsunoyukami
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2

Finding the electric potential energy

  • sameasabuv
  • · Replies 2 ·
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2

Variable Acceleration - Clueless

  • ssjcory
  • · Replies 9 ·
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9

Force on point charge C between two charges on a line

  • ChunkymonkeyI
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2

Capacitors Problem: find potential differences

  • hofferry
  • · Replies 5 ·
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5

Car Collision Problem: Determining Location and Speed at Collision

  • Math_Monster
  • · Replies 1 ·
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1

Thermo cycles with only T and mol

  • bmartz
  • · Replies 1 ·
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1

Can Calculus Prove Average Solar Irradiance is a Quarter of Total?

  • Dr.Doom
  • · Replies 1 ·
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1

What type of integral is this and how do I solve it?

  • Sekonda
  • · Replies 7 ·
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7

Uncertainty in Energy-Time Relation for Atomic Transitions

  • StephenD420
  • · Replies 15 ·
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15

Why Is Voltage Not Zero at Infinity in This Electrostatic Scenario?

  • jehan60188
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2
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2

Decay of Electric Field between two plates

  • ZedCar
  • · Replies 6 ·
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6

A quick expectant value question

  • StephenD420
  • · Replies 13 ·
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13

Forces of a Hammer Acting On a Nail With constant acceleration

  • LoveHOPEpeace
  • · Replies 3 ·
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3

Distance of Electrons with Electrostatic Force

  • kgal
  • · Replies 4 ·
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4

Projectile Motion Homework: Finding Initial Speed and Flight Time

  • kinslow31
  • · Replies 1 ·
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1

Ball falls in a truck loaded with sand

  • 10bunny10
  • · Replies 1 ·
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1

Solving 2nd Order ODE with x(0)=0, x'(0)=0

  • S_Flaherty
  • · Replies 4 ·
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4

Finding Optimal Angle to Hit Target 600m Away with 30m Hedge

  • Panthenole
  • · Replies 15 ·
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15

Proton release inside a parallel capacitor Find velocity

  • conov3
  • · Replies 3 ·
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3

What are the expressions for radiation and convection heat transfer?

  • moatasim23
  • · Replies 12 ·
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12

Suitcase on tilted baggage carousel with friction

  • stuplato
  • · Replies 12 ·
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12

Calculate Speed for Motorbike Crossing a 40m Wide River Using a 53 Degree Ramp

  • PonderingMick
  • · Replies 6 ·
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6

Ball thrown to reach max height at barn roof 11m high

  • archcos
  • · Replies 5 ·
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5

Applying conservation of mass to a falling plywood

  • polka129
  • · Replies 8 ·
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8

What is the Maximum Error in Predicting Solar Eclipse Times on Jupiter?

  • sparkle123
  • · Replies 2 ·
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2

Can Ray Diagrams Explain Refraction through a Slab?

  • sparkle123
  • · Replies 4 ·
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4

Electric Field of a Straight Wire (now with the attachment)

  • The Head
  • · Replies 1 ·
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1

Apocentre and Eccentricity of a Comet's Orbit

  • PChar
  • · Replies 4 ·
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4

Conservation of momentum in an inelastic collision with friction

  • DanicaK
  • · Replies 5 ·
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5

Are my KVLs incorrect for this circuit?

  • pyroknife
  • · Replies 1 ·
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1

Electric Field of a Straight Wire at a Particular Distance from Wire

  • The Head
  • · Replies 1 ·
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1

Electric field inside a slab of with constant charge density.

  • theBEAST
  • · Replies 3 ·
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3

How does the Electric Potential change when -q goes to -2q?

  • durhamisnuts
  • · Replies 1 ·
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1

Projectile motion of two bullets on inclined plane

  • drawar
  • · Replies 12 ·
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12

Can a window washer survive a 47-floor fall?

  • piggyxchu
  • · Replies 1 ·
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1

Finding tension and acceleration in a 3 weight, 3 pulley system

  • SovXietday
  • · Replies 3 ·
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3

A screen for detecting electrons

  • C6ZR1
  • · Replies 34 ·
2
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34

Is C the Correct Choice for Electroscope Question?

  • Miike012
  • · Replies 3 ·
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3

Thermodynamics problem-using PV=nrt

  • pyroknife
  • · Replies 1 ·
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1

Finding instantaneous velocity from a drag racer position-time graph

  • chinnie15
  • · Replies 7 ·
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7

Calculating Final Velocity of a Truck Under Braking

  • Michaela H
  • · Replies 1 ·
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1

Guass' Law (Conducting Cylinder)

  • mrshappy0
  • · Replies 16 ·
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16

Relationship Between Angular Velocity and the Spring Constant

  • dbakg00
  • · Replies 8 ·
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8

Electric field strength for a radial field.

  • gabloammar
  • · Replies 13 ·
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13

Find mag. of net electric field at the center

  • mdawg467
  • · Replies 1 ·
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1

Why use positive 40° for downward force on a block's normal force

  • Supernejihh
  • · Replies 2 ·
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2

Find Electric Flux through cube's side, point charge on corner

  • DieCommie
  • · Replies 10 ·
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10

Projectile motion and initial speed problem

  • Mdhiggenz
  • · Replies 1 ·
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1

2D Kinematics - Projectile Motion Question

  • 5minutes
  • · Replies 1 ·
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1

What do I do for these problems ?

  • whataboutbob
  • · Replies 4 ·
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4

Final velocity of a rock and how it compares to work

  • ja!mee
  • · Replies 7 ·
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7

How Do You Calculate Average Velocity in Projectile Motion?

  • Mdhiggenz
  • · Replies 10 ·
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10

Two hard physics problems (Projectile motion and gravitation), for me

  • physicsisgrea
  • · Replies 1 ·
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1

Maximum height of a projectile launched at an angle

  • SalsaOnMyTaco
  • · Replies 1 ·
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1

Pendulum projectile momentum question

  • jackneedshelp
  • · Replies 17 ·
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17
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1

How to find energy output of a wave over the course of one hour.

  • rzlblrt417
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1

Trouble working out the GM product of Earth: u = GM.

  • namtip
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3

Boiling above and below supercritical pressure

  • JJBladester
  • · Replies 1 ·
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1

Calculate force from wind on kite

  • getty102
  • · Replies 1 ·
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1

What is the Mass of m4 Given Tensions and Forces?

  • zaper
  • · Replies 3 ·
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3

Electric Field at Center of Square.

  • Rome_Leader
  • · Replies 1 ·
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1

Force of Friction w/o Coefficient of Friction Given

  • stehat
  • · Replies 1 ·
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1

Time for package dropped from ascending helicopter to reach ground

  • ZPoston
  • · Replies 1 ·
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1

Kinetic energy of a ball when falling (projectile motion)

  • paperdoll
  • · Replies 5 ·
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5

A simple problem that will take one minute to answer (:

  • lNVlNClBLE
  • · Replies 3 ·
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3

An object attached to three springs

  • jd12345
  • · Replies 3 ·
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3

Linear thermal expansion, a space between two metal rods

  • thatdudeuknow
  • · Replies 1 ·
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1

Rayleigh Criterion related to the eye

  • wmiddlebrook
  • · Replies 1 ·
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1

Electric force from two point charges on y-axis

  • gotpink74
  • · Replies 16 ·
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16

2D Projectile Motion problem, is there a better solution?

  • Habeebe
  • · Replies 2 ·
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2

Finding support forces on a cart with a cylinder pushed horizontally

  • mathmannn
  • · Replies 1 ·
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1

% error over many, many measurments

  • fisselt
  • · Replies 8 ·
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8

What is acceleration due to gravity of earth?

  • 6spdtls
  • · Replies 1 ·
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1

Deriving the Freudenstein equation from two equations

  • 8point1
  • · Replies 6 ·
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6

Electric Fields in Equilateral Triangle

  • longcatislong
  • · Replies 1 ·
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1

Experiment to measure total resistance in a parallel resistor circuit

  • 4evanaday
  • · Replies 1 ·
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1
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5
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2

Calculating Minimum Force to Prevent Slipping on an Inclined Plane

  • zaper
  • · Replies 10 ·
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10

Calculate Charge of Object A: Mass 100g, Force 0.35N

  • Miike012
  • · Replies 2 ·
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2

Mass of Object in Uniform Electric Field

  • gotpink74
  • · Replies 2 ·
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2

Find "g" Value on Distant Planet: 6.501m/s^2

  • climb515c
  • · Replies 1 ·
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1

Electron velocity in Electric Fields

  • C6ZR1
  • · Replies 27 ·
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27

Thermal Energy Transfer: A Gas Heated at Constant Volume and Pressure

  • calculusisrad
  • · Replies 1 ·
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1

Ball thrown vertically from 40m building with 4s upward flight

  • lNVlNClBLE
  • · Replies 34 ·
2
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34

Ball thrown from 45 m building at 30° and 20 m/s

  • lNVlNClBLE
  • · Replies 5 ·
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5