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

CR Transient Problem: Calculate VC at 3 Times

  • ZxcvbnM2000
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Physics problem involving displacement of car

  • wbetting
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3

How Far Will a Human Cannonball Travel When Their Acceleration is 0?

  • jean28
  • · Replies 6 ·
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6

Aerodynamics mini lesson questions

  • lions48
  • · Replies 3 ·
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3

Finding number of orbitals in alternate universe quantum system

  • nukeman
  • · Replies 4 ·
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4

How Do You Calculate Amplitude and Wave Velocity from a Wave Equation?

  • chomsky
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1

Problem involving Forces, torque,friction and object tipping

  • lingoo
  • · Replies 6 ·
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6

Components of Velocity (Collisions)

  • FeDeX_LaTeX
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3

Physics problem about Earths rotation after 45 centuries

  • wbetting
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2

Direction of a vector after I have already found magnitude

  • wbetting
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4

Motion on Inclined ramp with Friction Problem

  • DividedbyZero
  • · Replies 21 ·
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21

Car stopping distance using friction coefficient formula

  • connormaphone
  • · Replies 9 ·
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9

Solving Motion along a Line: Finding Turning Points, Max U & Frequency

  • zebrastripes
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Faulty lamp because it short circuit

  • thoradicus
  • · Replies 7 ·
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7
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6

Fluid Mechanics - find a cavity of a block if it exist?

  • mistax
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Calculating Voltmeter's Resistance

  • ZxcvbnM2000
  • · Replies 4 ·
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4

How Does Gauss' Law Apply to Gravitational Fields?

  • arl146
  • · Replies 7 ·
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7

A wheel is making 240 rpm and after 30 sec and after 30 sec

  • manal950
  • · Replies 5 ·
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5

How Does Changing Force Angle Affect Kinetic Energy Increase in a Sled?

  • Parzival
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6

Angular acceleration of a wheel formula

  • MrPotatoHead
  • · Replies 2 ·
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2

What is the formula for calculating the lifetime of a star?

  • Johnboy
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1

Rectangular coil rotating in magnetic field

  • ihateblackbox
  • · Replies 4 ·
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4

Is the Luminosity-Mass Relationship in Stars Misleading?

  • Johnboy
  • · Replies 2 ·
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2

Finding image height for object in front of plane mirror

  • re496210
  • · Replies 2 ·
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2

Finding Mass in SHM with Known Spring Constant and Velocity

  • JoulesVerms
  • · Replies 2 ·
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2

Barrier Tunneling Probability (Proton)

  • bayan
  • · Replies 3 ·
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3

Understanding Current Splitting at Junctions with Multiple Batteries

  • AdkinsJr
  • · Replies 8 ·
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8

Magnitude of perpindicular vectors

  • Tankertert
  • · Replies 1 ·
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1

Force Exerted From the Ground During a Jump.

  • JSpadafore
  • · Replies 2 ·
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2

Center of mass variable ambiguity

  • QD311
  • · Replies 3 ·
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3

What is the light's wavelength?

  • yy205001
  • · Replies 1 ·
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1

Electron or Proton gun (+/- charge) from magnetic field?

  • d3nat
  • · Replies 1 ·
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1

Physics question - Constant acceleration and distance travelled

  • physics.geeks
  • · Replies 5 ·
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5

A ball is thrown into the air + missing class

  • yumito
  • · Replies 10 ·
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10

Group of partcles in a magnetic field

  • TheWire247
  • · Replies 3 ·
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3

Having trouble finding trajectory of a small rocket

  • KiwiD
  • · Replies 1 ·
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1

Do the solutions have an error linear+rotational motion of a rigid body

  • Femme_physics
  • · Replies 7 ·
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7

Calculating Impulse from a Graph: How to Solve the Problem

  • Nitrate
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2
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4

Should the 60° angle in problem 1-5 be 30°?

  • s3a
  • · Replies 2 ·
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2

Finding period and phase shift in damped harmonic motion

  • roam
  • · Replies 10 ·
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10

What happens to a piston in a cylinder with Pascal's law?

  • Baxidur
  • · Replies 4 ·
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Related rates: shampoo filling a bottle with varying diameter

  • fletchea
  • · Replies 3 ·
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3

Checking magnetic flux and energy dissipation solution

  • bckcookie
  • · Replies 1 ·
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1

Help with calculating magnetic flux through a tilted loop

  • bckcookie
  • · Replies 1 ·
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Direction of the magnetic force

  • Nitrate
  • · Replies 3 ·
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3

Current, Polarity and EMF through circuit?

  • TheWire247
  • · Replies 4 ·
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4

Why Does a Motorcycle Accelerate Faster Than a Large Truck?

  • Nitrate
  • · Replies 3 ·
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3

Calculating the momentum of a softball

  • Nitrate
  • · Replies 1 ·
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1

Solve Your Circuit Question: Understanding Voltage Drop in Series Lamps

  • modis15
  • · Replies 1 ·
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1

Displacement of emerging light ray

  • jssamp
  • · Replies 9 ·
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9

Quick electric field of a line segment integral question

  • StephenD420
  • · Replies 2 ·
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2

Kinematics Vectors and cartesian coordinates. Plane with wind blowing.

  • freddyb
  • · Replies 1 ·
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Label Conversion factor (Temperature)

  • kewlergel
  • · Replies 1 ·
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1

Physics past paper question - hard disks

  • jsmith613
  • · Replies 2 ·
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2
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11

Charge remaining after parallel capacitors are repeatedly disconnected

  • ZxcvbnM2000
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Calculating Final Speed in Elastic collision (momentum)

  • Mushroom79
  • · Replies 3 ·
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3

Calculating Magnetic Field of Solenoid Coil with AC Current

  • moosavimaleki
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1
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Can the Dot Product Determine Maximum Distance from the Origin?

  • jimmy42
  • · Replies 3 ·
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3

How Much Work Is Needed to Push a Crate Up an Inclined Plane?

  • mstine87
  • · Replies 1 ·
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1

Moment of Inertia of a Hollow Cylinder

  • NeuronalMan
  • · Replies 1 ·
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1

Numerical based on 3 parallel plates -Find the charge problem

  • aashishrockzz
  • · Replies 9 ·
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9

Water Evaporation (Thermodynamics)

  • roam
  • · Replies 5 ·
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5

Finding amplitude of a baby in cot

  • charmedbeauty
  • · Replies 9 ·
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9

Understanding superposition of forces and its consequences

  • aaaa202
  • · Replies 5 ·
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Calculating Potential Energy of a Bow + Projectile calculations

  • xxshabsxx
  • · Replies 1 ·
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1

How to Find the Angle Between Two Vectors?

  • Michaelh926
  • · Replies 10 ·
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Images in a diverging lens are always virtual. when an objectis placed

  • nic.harv
  • · Replies 7 ·
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7

Electricity, Direction of Charge Problem

  • Bound
  • · Replies 3 ·
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3

Electron wave function and Probability

  • bayan
  • · Replies 2 ·
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2

Change in momentum of baseball being struck

  • Zach Lunch
  • · Replies 1 ·
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1

Writing quantum numbers for the 8 electrons in oxygen

  • nukeman
  • · Replies 5 ·
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5

Is My Solution for Magnetic Field and Force Correct?

  • bckcookie
  • · Replies 3 ·
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3

Vectors Using Cosine or Sin Law

  • xChee
  • · Replies 2 ·
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2

Finding the velocity of the wind

  • xChee
  • · Replies 4 ·
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4

2 hanging masses with springs, find spring constant

  • Hyperfluxe
  • · Replies 4 ·
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4

Kinetic Energy including a pulley

  • Lydia22
  • · Replies 9 ·
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9

I : How does an a.c generator work ?

  • k4lady
  • · Replies 1 ·
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1

Why Do Rockets Measure Different Collision Times in Relativity?

  • snellslaw
  • · Replies 9 ·
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9

Statics problem about an anchored plank in water

  • vanillin
  • · Replies 6 ·
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6

Energy, temperatures and efficiency

  • Flucky
  • · Replies 2 ·
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2
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3

Calculating Drop Size, Number and Time for Water Flow Through Capillary

  • 10bunny10
  • · Replies 4 ·
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4

Object sliding with friction into a spring Find compression

  • SamLing2000
  • · Replies 9 ·
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9

Obtaining mathematical model for the kinetic system

  • ssulun
  • · Replies 4 ·
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4

Factoring known drag into finding height of projectile

  • Chark711
  • · Replies 1 ·
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1

An electron is then shot between the plates

  • arl146
  • · Replies 2 ·
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2

Crash Momentum: 1500kg Boulder, 500kg Truck

  • Tankertert
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1
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2

The 200g model rocket,Angular acceleration

  • Lydia22
  • · Replies 1 ·
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1

Combining two equations - HOOOOW?

  • ks23
  • · Replies 10 ·
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10

Finding Current given kilo-ohms and volt

  • warnexus
  • · Replies 8 ·
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8

Find the current given length and magnetic field strength

  • warnexus
  • · Replies 2 ·
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2

Calculating capacitance -Got wrong answer

  • warnexus
  • · Replies 4 ·
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4

Finding current in parallel RLC Circuit

  • Mrhu
  • · Replies 10 ·
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10

Induced emf is my answer correct ( not sure about b value)

  • pokie_panda
  • · Replies 2 ·
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2