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

Three approaches to magnitude of average velocity

  • LearninDaMath
  • · Replies 17 ·
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17

Calculating Motion of a Mass Attached to a Spring on an Inclined Plane

  • emc92
  • · Replies 5 ·
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5

Solving for Time When a Ball is Dropped 85 Feet

  • hatelove
  • · Replies 8 ·
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8

How do you find time given vi, acceleration, and displacement

  • xcfzm94
  • · Replies 1 ·
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1

Position and acceleration vector - parallel and perpendicular

  • logearav
  • · Replies 2 ·
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2
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1

Max Speed of 0.20 kg Mass on Rotating Turntable

  • kenau_reveas
  • · Replies 3 ·
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3

What Is the Focal Length and Magnification in Multi-Lens Systems?

  • sz0
  • · Replies 3 ·
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3

How Does a Motorcycle Exert Force Backward to Accelerate?

  • whereitsbeen
  • · Replies 3 ·
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3

Two boxes connected by strings at an angle

  • dban
  • · Replies 1 ·
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1

How to Calculate Velocity Relative to Air: Explained with Examples

  • nesan
  • · Replies 2 ·
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2

Is the Quadratic Formula the Key to Solving for Time in a Physics Equation?

  • goracheski
  • · Replies 1 ·
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1

I must be wrong, instantaneous speed-Conceptual ?

  • CherryXBOMB
  • · Replies 5 ·
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5

Wave on a string general theory

  • ObviousManiac
  • · Replies 1 ·
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1

Convert 17,660 ft/min to mi/hr: Math Error?

  • cwalker8184
  • · Replies 2 ·
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2

Radioactvity - Specimen CCEA papers

  • borysek01
  • · Replies 1 ·
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1

Eastward Velocity, But A Westward Acceleration?

  • FriskyPanda
  • · Replies 2 ·
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2

Calculating Acceleration of a Mass in 2D Plane

  • PhysicsCCR
  • · Replies 1 ·
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1

Center of Mass/Moment of Inertia Question

  • Victorzaroni
  • · Replies 5 ·
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5

Surface Charge Density of a Neutral Conducting Cube

  • inevitable08
  • · Replies 1 ·
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1

Calculating Percent of Kinetic Energy Lost

  • Caps1394
  • · Replies 6 ·
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6

Solve Tension on Cable Homework: Find T for Elevator Mass 1320 kg

  • PhysicsCCR
  • · Replies 2 ·
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2

Normal force always point perpendicular to the plane?

  • aaaa202
  • · Replies 9 ·
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9

Motion, Power, Energy Questions

  • ZorAxe
  • · Replies 4 ·
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4

Can the Period of a Damped Oscillator Be Detected Accurately?

  • kgal
  • · Replies 4 ·
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4
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2

Why Capacitors Store Half The Charge They Are Given

  • Dark Red Rose
  • · Replies 3 ·
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3

How Does Lens Focal Length Affect Image Size on a Wall?

  • Darth Frodo
  • · Replies 1 ·
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1

Finding the Right String Length for a Dropping Mass

  • Masaharustin
  • · Replies 5 ·
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5

Calculate acceleration of gravity using chi-square

  • bznm
  • · Replies 1 ·
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1

Forces, vectors and acceleration

  • netrunnr
  • · Replies 6 ·
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6

Balance of a car on an inclined plane

  • okh
  • · Replies 8 ·
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8

Gauss's Law - Insulating Material

  • forestmine
  • · Replies 13 ·
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13
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3

Voltage Drop over Constant Current Circuit

  • chronotied
  • · Replies 4 ·
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4

Advanced Forces Question, Air Resistance and Friction.

  • Victorzaroni
  • · Replies 12 ·
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12

E Field Magnitude at Origin due to Single Charge 5cm Above

  • sasuke07
  • · Replies 28 ·
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28

Gravitational force between the Earth and the Sun

  • yumito
  • · Replies 3 ·
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3

Magnitude of an electric field at two points

  • zeroeclipse
  • · Replies 1 ·
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1

Simple Projectile Motion Problem

  • PinguNinja
  • · Replies 6 ·
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6

Solid cylinder with nonuniform volume charge density?

  • LumiKnight
  • · Replies 5 ·
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5

How to calculate position and velocity?

  • pill
  • · Replies 3 ·
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3

Half-Life of He-6 Nucleus: 40 GeV

  • sawhai
  • · Replies 5 ·
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5

Calculating Magnetic Field Due to a Current at a Given Point

  • GeorgeCostanz
  • · Replies 6 ·
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6

Thermodynamics-how to tell if a gas is an ideal gas?

  • pyroknife
  • · Replies 2 ·
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2

Rate of Field Change for Induced Current of Loop

  • tevatron1
  • · Replies 13 ·
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13

How Does Connecting Two Spheres Affect Charge Distribution?

  • jaguar7
  • · Replies 8 ·
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8

Angular Velocity/Motion Question

  • Victorzaroni
  • · Replies 12 ·
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12

(UCM) Maximum Rev. Per Minute Using Length and Acceleration

  • oziemaster
  • · Replies 1 ·
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1

Converting 8.2 x 10^19 pm to miles | Practice with Conversions Homework

  • cwalker8184
  • · Replies 3 ·
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3

Does Internal Energy of an Ideal Gas Change with Heat Transfer?

  • jean28
  • · Replies 1 ·
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1

Thermodynamics-why is this constant pressure?

  • pyroknife
  • · Replies 3 ·
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3

Calculating Time Interval and Speed of Inertial Clock

  • rh23
  • · Replies 1 ·
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1

Find Wave Crest Separation Near Shore

  • AdkinsJr
  • · Replies 3 ·
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3

Determine speed of bar and average frictional force

  • shinchung24
  • · Replies 1 ·
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1

Horizontal projectile, NOT GIVEN INITIAL VELOCITY

  • xannaxiero
  • · Replies 11 ·
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11

Kinetic energy and momentum (Conceptual Question)

  • ScienceGeek24
  • · Replies 3 ·
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3

How Do You Calculate the Electric Field at a Point Near a Charged Thin Rod?

  • chris_avfc
  • · Replies 20 ·
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20

Spring toy(Kinematics) check my solution(s)

  • supernova1203
  • · Replies 4 ·
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4

Time it takes a 3-body gravitational system to complete one orbit?

  • UTlonghorn
  • · Replies 3 ·
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3

What is the Average Speed Computation Problem on a Hill?

  • Bashyboy
  • · Replies 2 ·
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2

Mass sliding down surface of a sphere

  • Victorzaroni
  • · Replies 1 ·
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1

Radial resistance of coaxial cable

  • azaharak
  • · Replies 2 ·
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2

How Does Faraday's Law Apply to EM Plane Waves in Conducting Loops?

  • jegues
  • · Replies 3 ·
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3

Electric potential question (check my work)

  • AnthroMecha
  • · Replies 2 ·
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2

Conservation of Energy/Motion Question

  • Victorzaroni
  • · Replies 4 ·
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4

Electrostatics: Creating Charged Objects

  • Snape1830
  • · Replies 9 ·
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9

Capacitors in Series: Finding Charge on Each After Reconnection

  • funoras
  • · Replies 2 ·
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2

Applied force increase/decrease kinetic energy

  • kerrynet32
  • · Replies 3 ·
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3

Design a human-powered machine

  • seve
  • · Replies 5 ·
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5

Thermodynamics: Concentric Spherical Shells with Point Source Radiation

  • eric.mercer92
  • · Replies 7 ·
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7

What is the strength of the magnetic field

  • warrior2014
  • · Replies 2 ·
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2

Conservative and non-conservative systems

  • mpkannan
  • · Replies 1 ·
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1

Relationship betwen SHM frequency and harmonic oscillator freq.

  • songbird7
  • · Replies 1 ·
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1
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10

Forces and acceleration - two masses instead of one

  • iJamJL
  • · Replies 11 ·
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11
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8

Solving Satellite Collision Homework

  • vivekrai
  • · Replies 9 ·
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9

Discharging capacitor, the differential equation

  • Sefrez
  • · Replies 4 ·
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4

Stable equilibium of a potential

  • rbwang1225
  • · Replies 2 ·
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2
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3

Magnetic Field at center of circle on rectangular circuit

  • soccerscholar
  • · Replies 1 ·
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1

Electric field and potential of 2 point charges

  • soccerscholar
  • · Replies 2 ·
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2

DFT Symmetry Property: Why Does the Answer Not Void This Property?

  • Shaheers
  • · Replies 1 ·
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1

Two boxes sliding down a 20° ramp.

  • twils_21
  • · Replies 2 ·
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2

Work calculation for isothermal compression

  • PNGeng
  • · Replies 1 ·
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1

Addition of 2-D vectors and relative velocity

  • Bruce_Wayne
  • · Replies 1 ·
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1

Young's Modulus: 2 bars placed end to end and compressed from both ends

  • Angie_Agnes
  • · Replies 11 ·
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11

Force of a parachute on parachutist

  • testme
  • · Replies 2 ·
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2

Motion of particle in an electric field

  • Falken_47
  • · Replies 2 ·
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2

Will sound be affected by gravity in this simple problem?

  • iJamJL
  • · Replies 2 ·
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2

Vine breaks during tarzan's swing at what angle?

  • Koscher
  • · Replies 10 ·
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10

3 boxcars moving along frictionless track hits a motionless boxcar

  • chaotiiic
  • · Replies 2 ·
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2

Time Period of SHM: Mass of System or Just Mass?

  • Peter G.
  • · Replies 1 ·
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1

What is the deviation angle in optics?

  • trivk96
  • · Replies 1 ·
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1

At what point on the x-axis is the Electric Potential zero?

  • Minhtran1092
  • · Replies 1 ·
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1

Max distance of rectangle that electron beam can pass through

  • kkcolwell
  • · Replies 3 ·
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3

Calculating acceleration using Experimental equation

  • Artel
  • · Replies 8 ·
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8

Ramp: Forces and Motion Investigation Lab

  • Asuncion
  • · Replies 7 ·
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7

Max Charge on Sphere: Calculating with Electric Fields

  • MrRandom66
  • · Replies 5 ·
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5