Advanced Physics Homework Help Forum

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Threads

Operator matrix elements, opposite-parity functions

  • vst98
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1

Quantum Mechanics Spin Expectation Value

  • helpcometk
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9
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5

Classical mech non-inertial frame bead on a rotating ring

  • Liquidxlax
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1

Rutherford Backscattering Spectroscopy Question

  • sportfreak801
  • · Replies 11 ·
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11

Find gravitational potential inside uniform ball

  • MasterNewbie
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2
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1

Heat Capacity Power Series Approximation

  • Fuzzletop
  • · Replies 4 ·
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4

Fresnel zone plate diffraction

  • curto
  • · Replies 4 ·
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4

Free Particle and the Schroedinger Equation

  • Lunar_Lander
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3

Torque for rotating a shaft of unbalanced weight

  • sekar_507
  • · Replies 9 ·
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9

Solve Electron Capture: Population Ratio of 2p1/2 & 2p3/2 States

  • vst98
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1

Is the Amplitude Halved After Light Passes Through a Polarizer?

  • Shackleford
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1

Calculating Electric Field Above a Disc of Charge

  • blueyellow
  • · Replies 6 ·
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6

How Does a Debounce Switch Solve Electrical Noise Problems?

  • S_Flaherty
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1
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1
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1

Finding the maximum velocity of a wave on a tight string

  • lol34543
  • · Replies 5 ·
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5

Collisions in Center-of-Mass coordinates

  • Xyius
  • · Replies 3 ·
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3

Conservation of energy for angular velocity after collision

  • shaqtus
  • · Replies 3 ·
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3

Schwarzschild Circular Orbits Problem

  • AuraCrystal
  • · Replies 9 ·
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9

Electric field in a hollow cylinder

  • magnifik
  • · Replies 5 ·
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5

Simple static load problem giving me hell (sketch provided)

  • FreeBodyDiag
  • · Replies 2 ·
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2

Liquid flow (river), viscosity, force, height etc.

  • ApeXaviour
  • · Replies 1 ·
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1

What is the total charge on the surface?

  • blueyellow
  • · Replies 1 ·
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1

Parametric representation of a vector electric field

  • jjand
  • · Replies 4 ·
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4

A person can focus objects clearly only between 15 cm and 40 cm.

  • greg_k92
  • · Replies 1 ·
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1

Eigenvalues and Eigenstates of Spin Operator

  • thepopasmurf
  • · Replies 1 ·
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1

Is My Free Body Diagram Correct for This Friction Problem?

  • Arka2334
  • · Replies 3 ·
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3

Quantum mechanics, symmetry and degeneracy

  • Chronos000
  • · Replies 1 ·
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1

Quantum Mechanics Variational Method

  • cep
  • · Replies 1 ·
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1
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1

Purpose of fourier series and fourier transform

  • Jncik
  • · Replies 4 ·
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4

Callen: Thermodynamics (general fail)

  • go_ducks
  • · Replies 2 ·
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2
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2
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6

Calculating De Broglie Wavelength in Bohr Model

  • Jason265
  • · Replies 1 ·
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1

Time evolution and Feynman Integrals

  • clasicoun
  • · Replies 1 ·
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1

Hermitian conjugate of plane wave spinors for Dirac equation

  • bubblehead
  • · Replies 1 ·
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1

Finding sphere radius from potential and field strength 10 cm away

  • twisted079
  • · Replies 1 ·
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1

There are two bodies colliding Simulate the collision phenomena by num

  • max1546
  • · Replies 1 ·
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1

How Do You Solve Projectile Motion for a Car Driving Off a Cliff?

  • Alvl tay
  • · Replies 4 ·
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4

Eigenvalue eqn for a electron in a one-dimensional lattice

  • RobLikesBrunc
  • · Replies 1 ·
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1

Electric potential constant within a conductor?

  • Plamo
  • · Replies 4 ·
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4

Density of states for a free electron

  • kottur
  • · Replies 3 ·
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3

Finding R and T for double delta function potential

  • jhosamelly
  • · Replies 5 ·
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5

How Is Enclosed Mass Derived in the Hernquist Model?

  • TheSpaceGuy
  • · Replies 1 ·
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1

Momentum density vector of a plane em wave

  • aftershock
  • · Replies 1 ·
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1

How is the Schrödinger Equation Derived for a Particle in a Ring?

  • nokure
  • · Replies 1 ·
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1

What Is the Expectation of Angular Momentum Components for a Spin 5 Particle?

  • doublemint
  • · Replies 1 ·
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1

Internal Energy and Work Done in an Adiabatic Process

  • ibysaiyan
  • · Replies 17 ·
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17

Problem: particle in infinitely deep potential

  • paly4
  • · Replies 4 ·
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4

Solar panel power output with chain rule and arcsin angle function

  • IntegrateMe
  • · Replies 1 ·
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1

Expanding ||a|x> + b|y>||² using Dirac notation

  • NeedPhysHelp8
  • · Replies 1 ·
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1

Interference from reflections on 350 nm glass plate at 75°

  • necromanzer52
  • · Replies 2 ·
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2

Deriving the thermal conductivity of graphene

  • gomboc
  • · Replies 1 ·
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1

Calculating Quantum States in Energy Range: Proving g(E)dE Equation

  • intr199
  • · Replies 1 ·
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1

QM: Infinite Square Well -a/2 to a/2

  • chrisd
  • · Replies 2 ·
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2

What values of a satisfy Ωm≈1 in the matter density parameter equation?

  • ryanwilk
  • · Replies 1 ·
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1

Pendulum on Pendulum, velocity in non inertial frame

  • sede
  • · Replies 1 ·
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1

Why Must the Expectation Value of Momentum Squared Be Strictly Positive?

  • c299792458
  • · Replies 2 ·
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2

Calculating Final Pressure of an Adiabatic Gas Expansion

  • fiziks09
  • · Replies 9 ·
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9

What Is the Gravitational Quadrupole Moment of a Homogeneous Ellipsoid?

  • Osman123
  • · Replies 1 ·
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1

Mass Confined to Rotating Hoop with Moment of Inertia I3

  • tphysicsb
  • · Replies 1 ·
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1
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1

Weight before/after change in rotation Speed

  • Charanjit
  • · Replies 4 ·
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4

Representing |psi> with Continuous Eigenvectors: An Example

  • jinksys
  • · Replies 3 ·
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3

Physical significance of Fock space in chemical dynamics

  • Prabaldehyde
  • · Replies 1 ·
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1

Force on charges inside/out of a hollow conductor

  • wizang
  • · Replies 1 ·
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1

Maxwell's Equations and a circular capacitor

  • TheTourist
  • · Replies 3 ·
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3

Expectation Value/ Evaluating Gaussian Integral

  • atomicpedals
  • · Replies 18 ·
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18

Why Is the Hermitian Commutator [A,B]† Used Instead of [A†,B†]?

  • jinksys
  • · Replies 7 ·
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7

Klein Gordon eqn, decoupling degrees of freedom

  • Onamor
  • · Replies 2 ·
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2

QM- Why is the separation constant +/-l(l+1) ?

  • jinksys
  • · Replies 2 ·
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2

Direction of dipole's electric field

  • Silversonic
  • · Replies 2 ·
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2

How Does the Refractive Index Change with Frequency in Plasma Mode?

  • v_pino
  • · Replies 2 ·
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2

Which Potential Has a Lower Ground State Energy?

  • dpeagler
  • · Replies 1 ·
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1

Metal Sphere surrounded by dielectric

  • Marioqwe
  • · Replies 1 ·
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1

Deriving Hubble redshift in closed Universe from Maxwell equations

  • inline
  • · Replies 1 ·
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1

Solving to prove that an operator is Hermitian

  • mduer717
  • · Replies 1 ·
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1
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1

Is Our Solution for Complimentary Unitary Operators Valid?

  • jfy4
  • · Replies 1 ·
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1

Solving 2-D Schrodinger Equation?

  • sciguy2010
  • · Replies 2 ·
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2

Quantum Tunnelling - Transmission Probability

  • Silversonic
  • · Replies 5 ·
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5

Solid State Physics- Finding concentration of donor atoms (Nd)

  • Matt1234
  • · Replies 1 ·
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1

Pair-production derivation for h*nu_min

  • fyziksdunce
  • · Replies 3 ·
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3

Understanding Noether's Theorem and Conserved Charges for a Rotating Particle

  • Maybe_Memorie
  • · Replies 16 ·
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16

Calculating Time Period for Simultaneous Relativity in All Ref Frames

  • AlexCdeP
  • · Replies 4 ·
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4

How Can Projectile Motion Equations Be Derived from Basic Kinematics?

  • madeeeeee
  • · Replies 3 ·
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3

Delivery time for purified nuclide A with nuclide B contamination

  • shamone
  • · Replies 3 ·
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3

Why is the Fermi surface called a sphere in 1D and 2D?

  • helpcometk
  • · Replies 1 ·
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1

Harmonic oscillators and commutators.

  • Beer-monster
  • · Replies 3 ·
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3

How to Determine Angular Acceleration from Given Equations?

  • depre87
  • · Replies 1 ·
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1

How to Prove sqrt(<Rg^2>) = sqrt(Lζ/3)?

  • jaobyccdee
  • · Replies 2 ·
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2

Spherical Harmonics/Angular Momentum

  • atomicpedals
  • · Replies 1 ·
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1

Math Problem Issue: Deriving 4.12 from 4.11

  • matt222
  • · Replies 1 ·
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1

H atom electron in combined spin/position state

  • outhsakotad
  • · Replies 3 ·
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3

How to Determine Bound States in a Double Delta-Function Potential?

  • TheFerruccio
  • · Replies 2 ·
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2

What is meant by isobaric expansion?

  • fyrddin
  • · Replies 1 ·
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1

Quantum mechanics, potential well

  • fluidistic
  • · Replies 41 ·
2
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41