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Free advanced physics homework help via qualified mentors. Upper undergraduate and graduate level. Please use the template when requesting help and show your work.
On the magnetic dipole radiation in Griffith's book
  • a1titude
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Particle on a ring (components in the postion basis)
  • Lambda96
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9
Jackson Problem 3.12/3.18 -- Electric potential near two plates
  • PP27
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Calculate the Magnetic Vector Potential of a circular loop carrying a current
  • casparov
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8
Model for a Qubit system using the Hamiltonion Operator
  • Lambda96
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6
Two-level Quantum System - initial state
  • Coelum
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14
Lagrangian equations of particle in rotational paraboloid
  • Oomph!
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4
  • Redirect
Fluid Dynamics - using manometer Equation
  • dylanwalt
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Summation involving Clebsch–Gordan coefficients
  • patric44
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Modifying Euler-Lagrange equation to multivariable function
  • offscene
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1
Fluid Mechanics Force Body Diagrams
  • Valour549
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16
Is total flux linkage λ=dΨ*Ienclosed/I or λ=N*Ψ?
  • ElieMakdissi
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Help Solve for the normalization constant of this QM integral
  • casparov
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3
Deriving equations of motion of abelian gauge field coupled to scalar
  • Geigercounter
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10
Probability density for observable with continuous Spectrum
  • Naarogaut
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Prove the following commutation relations
  • Hibarikyoya
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3
Thermodynamic equilibrium for systems only open to particle exchange
  • EE18
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5
Question related to completeness relation for photons
  • Dhmht_Kr
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1
Computing path integral with real and Grassmann variables
  • Geigercounter
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1
Line of charge and conducting sphere (method of images)
  • thedddmer
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4
Oscillating dipoles, energy and brightness
  • milkism
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1
Details regarding the high temperature limit of the partition function
  • EE18
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1
Finding ##U## given information about an adiabatic process (Callen)
  • EE18
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5
What is the Wave Function for a Particle in One Dimension in Dirac Formalism?
  • ergospherical
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Maxwell Stress components of the energy-stress-momentum tensor
  • milkism
  • · Replies 13 ·
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13
Expectation value of an operator to the power of n
  • patric44
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2
Troubleshooting nuclear decay, electron binding energies, internal contributions
  • Graham87
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1
Dependence of Hall coefficient on temperature in semiconductors
  • Roger Dalton
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1
Density of a patch of an accretion disk
  • ergospherical
  • · Replies 8 ·
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8
Classical magnetic dipole-dipole interaction in iron
  • rogdal
  • · Replies 7 ·
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7
Express entropy density in terms of energy density (Ashcroft/Mermin)
  • EE18
  • · Replies 8 ·
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8
How to manipulate indices when Grassmannian numbers are present?
  • LCSphysicist
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6
I do not understand stress energy tensor for fluids
  • StenEdeback
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6
Majorana Fermions: Lagrangean and equations of motion
  • LCSphysicist
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1
What Is the Next Step in Simplifying the Van der Pol Oscillator Equation?
  • kornelthefirst
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1
Can Spin Waves Explain Magnetization?
  • curious_mind
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1
Troubleshooting Nuclear Reactions: Decay, Gamma Rays & More
  • Graham87
  • · Replies 8 ·
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8
How to Calculate the Molar Entropy of H2O(g) at 25°C and 1 bar?
  • physicisttobe
  • · Replies 9 ·
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Quantum spin superposition interpretation
  • phoenix3
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9
Fuel Cell Reaction Question - is this right?
  • JoeMama
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1
What is the volume of the system when inserting the 4-velocity of the observer?
  • StenEdeback
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6
Multipole expansions, calculating the various moments of point charges
  • milkism
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2
Separation of variables in spherical coordinates (electrostatics)
  • milkism
  • · Replies 13 ·
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13
General relativity - Using Ricc and Weyl tensor to find the area
  • edoofir
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A system of independent particles (energy levels)
  • physicisttobe
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Solving a Problem with Interchanging Field Tensors
  • milkism
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5
Higgs boson re-discovery from a CERN dataset (for a project)
  • omerel
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2
Linearisation of continuity equation (cosmology)
  • ergospherical
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1
Problem on SSH Model Tight Binding Approach
  • PhysicsTruth
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1
Finding free electron gas Green function in Fourier space
  • kakaho345
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1
Ensemble vs. time averages and Ashcroft and Mermin Problem 1.1
  • EE18
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Deriving the commutation relations of the Lie algebra of Lorentz group
  • bella987
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3
How to find the eigenvector for a perturbated Hamiltonian?
  • happyparticle
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What Variables Must X̅ Have in Order to be Considered a Partial Molar Quantity?
  • physicisttobe
  • · Replies 8 ·
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How is the Maxwell-Boltzmann Distribution Derived?
  • Heisenberg2001
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Time dilation for a clock thrown vertically
  • gnieddu
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4
Basic Quantum Circuit: States of Individual Qubits
  • cwill53
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3
Electrons escaping a metal surface
  • ergospherical
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3
Is the Rotation of Spherical Harmonics Using Wigner Matrices Correct?
  • Like Tony Stark
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Electron encountering metal surface (1D Step potential)
  • EE18
  • · Replies 11 ·
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11
Why a particle with spin=0 can't posses a magnetic dipole moment?
  • happyparticle
  • · Replies 17 ·
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17
Mixed states and total wave function for three-Fermion-systems
  • Like Tony Stark
  • · Replies 1 ·
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1
Definition of angular frequency in nuclear structure
  • patric44
  • · Replies 8 ·
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8
MTW Exercise 12.6: Formulating Newtonian Gravity Using Curvature
  • jbergman
  • · Replies 9 ·
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Calculating pressure from a known equation of energy
  • ForgetfulPhysicist
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5
Coordinate transformation into a standard flat metric
  • offscene
  • · Replies 3 ·
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3
Electrodynamics - finding potential of a non conducting shell
  • jerry222
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2
Electric and magnetic fields of a moving charge
  • milkism
  • · Replies 33 ·
2
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33
Magnetic- and Electric- field lines due to a moving magnetic monopole
  • milkism
  • · Replies 23 ·
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23
Electric Field due to a disk of radius R in the xy-plane
  • neroE
  • · Replies 7 ·
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Probabilities of measuring ##\pm \hbar/2## along ##\hat{n}##?
  • happyparticle
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Average Kinetic Energy of Electron in the Conduction Band
  • Teymur
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4
Expressing Feynman Green's function as a 4-momentum integral
  • realanswers
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1
Can Left Handed Up Quarks Transform Into Right Handed Ones?
  • talanum52
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Are Pi-Mesons and W-Bosons Truly Identical in Particle Decay?
  • talanum52
  • · Replies 12 ·
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Deriving the kinetic energy flux in an effusion process
  • rogdal
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4
Probability of Negative Value in Sz 1/2 Spin System w/ Lambda 1 & 2
  • ellenb899
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Solving Problem 2.4 in Ballentine: Nonnegativeness Derivation
  • EE18
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3
How to Calculate <Ly^2> Without Using Symmetry?
  • physics1000
  • · Replies 6 ·
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6
Surface current on a spherical superconductor
  • gausswell
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1
Feynman diagram for ##\mu^+\mu^-## production in ##p\bar{p}## reaction
  • Nirmal Padwal
  • · Replies 1 ·
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1
How Can I Solve for the Travel Time of a Particle in a Potential?
  • haziq
  • · Replies 5 ·
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5
Delta-Scuti phase folded light curve equation
  • so_gr_lo
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1
Are the Energy Units in the Decay Diagram Correct for Pt-125?
  • Graham87
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2
Spin-Orbit Coupling in Hydrogen Atom: Understanding the Calculation
  • Viona
  • · Replies 6 ·
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6
How Do You Derive and Analyze the Matrix for 3 Coupled Oscillators?
  • Lambda96
  • · Replies 7 ·
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Conserved Noether charges for Lorentz symmetry of the action
  • spaghetti3451
  • · Replies 9 ·
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9
Expectation of Kinetic Energy for Deuteron
  • James_1978
  • · Replies 30 ·
2
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Spectral lines in the emission spectrum for an electron at n= 3
  • Pushoam
  • · Replies 2 ·
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2
What is 4-Vector Potential Transformation under Gauge Fixing?
  • Kulkarni Sourabh
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What is the origin of the factor 3?
  • July Zou
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1
Gas in a box with Maxwell-Boltzmann distribution
  • rogdal
  • · Replies 5 ·
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5
Parameters in Bohr-Mottelson Collective Hamiltonian
  • patric44
  • · Replies 1 ·
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Collision between two particles with different spin
  • Like Tony Stark
  • · Replies 3 ·
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3
What is the oscillator model in a generalized Snyder scheme？
  • Zhiping Lai
  • · Replies 1 ·
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1
What is the Correct Approach to Solving the Deuteron Transcendental Equation?
  • James_1978
  • · Replies 14 ·
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14
Non quadratic potentials and quantization in QFT (home exercise)
  • manfromearth
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1
Proving that e^{ikx} is primary with weight (h=\hbar = \alpha k^2/4)
  • LCSphysicist
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1
Determine the Lagrangian for the particle moving in this 3-D cos^2 well
  • Lambda96
  • · Replies 6 ·
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6
Is the Exponential Solution to Spin Evolution Equations Physically Valid?
  • uxioq99
  • · Replies 9 ·
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9