Advanced Physics Homework Help Forum

Free advanced physics homework help via qualified mentors. Upper undergraduate and graduate level. Please use the template when requesting help and show your work.

Threads

Uniform Rod Attached To Spring Motion Equation Problem

  • TheDoctor078
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QM- Relative probability of finding an electron

  • Lisa...
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10
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Why is the thick disc hard to study?

  • Flucky
  • · Replies 6 ·
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6
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3

Quantum mechanics, harmonic oscillator and wavefunction

  • fluidistic
  • · Replies 21 ·
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21

Wigner 3j symbol recursion relation

  • pstq
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2

Is it possible to focus ultraviolet light with a convex spherical lens?

  • physall
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1

Why Does Voltage Drop When a Dielectric Is Inserted in a Capacitor?

  • Monts
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1

Equations of Motion of a Solar Sail HELP

  • tomelwood
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2

Homework question on special relativity

  • spaghetti3451
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4
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3

Analytic function, creation and annihilation operators proof

  • vst98
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3

What Are the Properties of the Commutator in the Dilation Operator?

  • Keyoke
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1

Intensity of solar radiation at earth orbit

  • tomelwood
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2
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If Hubble's parameter remained constant

  • ULstudent91
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1
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Schrodinger equation normalization to find A -Griffiths

  • Gary Roach
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4

Coordinate transform of partial derivative

  • ck99
  • · Replies 3 ·
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3

Can the total change in entropy be negative value?

  • Krishna0703
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1

How Do You Calculate v and w for Flywheel Inertia?

  • Hussman
  • · Replies 6 ·
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6

How Do I Rearrange This Equation to Solve for I?

  • Hussman
  • · Replies 4 ·
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4
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4

Why is the Charge Density Calculation Incorrect?

  • wf198349
  • · Replies 6 ·
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6
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6

Decay of tauon into pion and neutrino

  • shroom
  • · Replies 3 ·
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3

Comparing "The" vs. "A" Rotation Matrix in Shankar 12.4.4

  • bjnartowt
  • · Replies 2 ·
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2

Mass on the inner surface of a cone langrangian

  • Lindsayyyy
  • · Replies 8 ·
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8

Photoelectric Effect - Energy Level (hydrogen)

  • jothisadhana
  • · Replies 6 ·
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6

Finding the Lagrangian of a bead sliding along a wire

  • Rumor
  • · Replies 3 ·
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3

What is the Application of Dirac Delta in Charge Constellations?

  • sunrah
  • · Replies 2 ·
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2

Oil film thickness for total reflection 500nm

  • messick11
  • · Replies 3 ·
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3

How Much Force to Punch a Hole in Steel?

  • Myung
  • · Replies 1 ·
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1

What Is the Phase Velocity vp of Light of Wavelength λ?

  • coltin.walsh
  • · Replies 1 ·
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1

Solving Reflection Coefficient for Step Potential: Why B ≠ 0?

  • Thyestean
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3

Stat Mech : Balls in a box counting problem

  • Opticmist
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2

Kapteyn's and Shapley's Milky Way - a comparison

  • Flucky
  • · Replies 2 ·
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2

Excercise about a solar-like system

  • RHK
  • · Replies 22 ·
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22

Show that the expectation value of angular momentum <Lx> is zero

  • Jimmy25
  • · Replies 5 ·
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5

Thermodynamics question. In Dewar flask liquid nitrogen.

  • AudriusR
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1

Matrix Representation of Jₐ for j=1

  • blueyellow
  • · Replies 4 ·
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4

Need help finding energy absorbed by perfect black sphere

  • mendem03
  • · Replies 2 ·
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2

Symmetric and Asymmetric Electron Wave Functions in a Proton-Electron System

  • helpcometk
  • · Replies 1 ·
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1

Thermodynamics - ideal gas properties

  • johnsmith456
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1

Entropy of liquid water and water vapor

  • jjand
  • · Replies 3 ·
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3

Making a Uniform Mixture of Helium Gas

  • ibysaiyan
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2

Solving Gravitation Question: Noam Struggling With Answers

  • noamriemer
  • · Replies 4 ·
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4

Spherical Boundary Displace Current

  • superspartan9
  • · Replies 1 ·
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1

Show that this function satisfies Schrödinger equation for hydogen?

  • Mixer
  • · Replies 1 ·
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1

Integration time for poissonian signal

  • RHK
  • · Replies 10 ·
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10

Radiation perpendicularly incident to a surface

  • Demon117
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1
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1

How Do We Calculate the Kinetic Energy of Gases in Stars?

  • Piano man
  • · Replies 3 ·
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3

Solve Obler's Paradox: Calculate Universe Size in Parsecs & Light Years

  • J.Welder12
  • · Replies 1 ·
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1

I really , I don't know how to go about figuring out this problem

  • AlaniRivers
  • · Replies 3 ·
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3

Solid State Physics - p-n junctions

  • GrantB
  • · Replies 4 ·
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4
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1

Are These Hermitian Conjugates Correct?

  • v_pino
  • · Replies 5 ·
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5

Solving Hermitian Conjugate Homework

  • v_pino
  • · Replies 6 ·
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6

How do I convert luminosity to magnitude?

  • the riddick25
  • · Replies 3 ·
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3

Infinitely long cylinder - locate bound currents and calculate field

  • blueyellow
  • · Replies 6 ·
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6

Is the Holevo Quantity Preserved under Channel Applications?

  • rmp251
  • · Replies 1 ·
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1

How do ultrarelativistic particles behave in 3-D cubic boxes?

  • PerUlven
  • · Replies 1 ·
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1

How to Show Commutativity of Charge Current Density Operator?

  • jmlaniel
  • · Replies 2 ·
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2

Lasers- the avg power of the resulting laser pulse over a time interval

  • exzacklyright
  • · Replies 1 ·
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1

How Does Pressure Change with Volume in an Isothermal Process?

  • the_man
  • · Replies 2 ·
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2

Yet another Lagrangian problem. Motion in a cone

  • Xyius
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1

Lagrangian Problem. Two masses on a massless circle

  • Xyius
  • · Replies 2 ·
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2

Question about the gravitational Potential Energy Law Proof

  • Alwahsh
  • · Replies 1 ·
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1

Can Any Wave Be Expressed as a Complex Fourier Series?

  • Niles
  • · Replies 6 ·
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6

Lagrangian equation: 2 coupled masses,spring, three dimensions

  • Lindsayyyy
  • · Replies 10 ·
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10

Finding the maximum power delivered from a baterry

  • pentazoid
  • · Replies 5 ·
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5

Interview with someone in Physics Field

  • StukaJU87c
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1

General relativity- weak field limit and proper time

  • hai2410
  • · Replies 2 ·
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2

Textbook to accompany Susskind's Quantum Entanglement Lectures?

  • bcbwilla
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1

Power Series Expanded, Arfken 5.7.16

  • citra
  • · Replies 1 ·
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1
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2

Please help me with this basic thermpdynamics problem

  • gharrington44
  • · Replies 1 ·
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1

Force and Change in Momentum

  • DBLE
  • · Replies 16 ·
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16

Calculate Expectation Value of Hamiltonian using Dirac Notation?

  • kaplac
  • · Replies 1 ·
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1
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3

Distance between planes in crystals

  • Stephan Hoyer
  • · Replies 5 ·
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5

Kinetic and potential energy in circular and rotational motion

  • tjackson3
  • · Replies 4 ·
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4

A Particle of Mass m in Infinite 1D State

  • Cybercole
  • · Replies 4 ·
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4

Special relativity assignment - pole moving in two dimensions

  • luisf
  • · Replies 1 ·
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1

Finding centre of mass of an isosceles triangle

  • shawli
  • · Replies 12 ·
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12

Inner Products in R2 other than euclidian

  • corey2014
  • · Replies 2 ·
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2

Quantum Mechanics - Ground State of Helium Atom

  • Tangent87
  • · Replies 3 ·
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3

Expectation Value of Momentum Squared

  • VariableX
  • · Replies 4 ·
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4

Atoms with several electrons, potential energy

  • fluidistic
  • · Replies 1 ·
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1

Total Excess Charge using a Coulomb Balance

  • ZedCar
  • · Replies 3 ·
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3

Having issues with a seemingly simple problem

  • Xyius
  • · Replies 1 ·
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1

The stationary-state Schroedinger eq. for U>E

  • gurhkn
  • · Replies 1 ·
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1

Solving a Linear Time-Dependent Hamiltonian Problem

  • tphysicsb
  • · Replies 2 ·
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2

Consider a spherical wave Show that E obeys maxwell's equations

  • blueyellow
  • · Replies 3 ·
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3

Minumum velocity when entering a loop?

  • davidpac
  • · Replies 1 ·
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1

Coupled oscillation problem, describing subsequent motion

  • lark0901
  • · Replies 1 ·
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1

Finding Fourier Coefficients for a Function's Waveform

  • WJSwanson
  • · Replies 11 ·
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11