Advanced Physics Homework Help Forum

Post thread
Free advanced physics homework help via qualified mentors. Upper undergraduate and graduate level. Please use the template when requesting help and show your work.
Potential at the origin due to an infinite set of point charges
  • · Replies 16 ·
Replies
16
Views
4K
Understanding the Maxwell Stress Tensor
  • · Replies 3 ·
Replies
3
Views
4K
How Do You Express the Tensor Product of Hamiltonians?
  • · Replies 1 ·
Replies
1
Views
2K
How to Determine D, H, and β in a Region with Given Parameters?
  • · Replies 1 ·
Replies
1
Views
1K
Visualizing & Solving a 2D Laplace Eq problem (Polar Coordinates)
  • · Replies 2 ·
Replies
2
Views
3K
Why the magnetic field doesn't have to describe a circle?
  • · Replies 46 ·
2
Replies
46
Views
6K
Average speed of molecules in a Fermi gas
  • · Replies 2 ·
Replies
2
Views
4K
How Does Coulomb Repulsion Affect a Fermionic Two-Level System?
  • · Replies 1 ·
Replies
1
Views
2K
Magnetic Monopole: Reason Behind Faraday's Law Counterpart
  • · Replies 11 ·
Replies
11
Views
3K
The Eigenfunction of a 2-electron system
  • · Replies 4 ·
Replies
4
Views
1K
[Work check] Parametric frictionless wire
  • · Replies 2 ·
Replies
2
Views
1K
How to find the decay rate of processes: a→ b+c
  • · Replies 5 ·
Replies
5
Views
2K
Doubt about a unit vector in toroidal coordinates
  • · Replies 1 ·
Replies
1
Views
2K
Friedmann's equation for a^3 with Λ, ρm
  • · Replies 1 ·
Replies
1
Views
2K
What is the principal moment of inertia tensor for a lamina?
  • · Replies 2 ·
Replies
2
Views
2K
How to Calculate the Recessional Velocity of a Galaxy 500 Mpc Away?
  • · Replies 4 ·
Replies
4
Views
2K
Calculate potential form poisson equation
  • · Replies 7 ·
Replies
7
Views
3K
How to deal with a circular light boundary conditions
  • · Replies 14 ·
Replies
14
Views
2K
Question about Fermi energy and heat capacity of a Fermi gas
  • · Replies 2 ·
Replies
2
Views
2K
Please give me some clues about the calculations for a non-rotating black hole
  • · Replies 4 ·
Replies
4
Views
2K
Qualitative question about the Stark effect
  • · Replies 9 ·
Replies
9
Views
2K
How to find von-Klitzing constant based on graph?
  • · Replies 1 ·
Replies
1
Views
1K
How Is the Second Term Derived in the 2D Riemann Curvature Tensor?
  • · Replies 1 ·
Replies
1
Views
3K
Electrodynamics: Vector Calculus Question
  • · Replies 8 ·
Replies
8
Views
3K
The Energy of a Continuous Charge Distribution (Griffiths EM Sect. 2.4.3 3rd ed)
  • · Replies 2 ·
Replies
2
Views
3K
Where Did I Go Wrong Solving the Inflation Model Integral?
  • · Replies 1 ·
Replies
1
Views
1K
Geodesics and Motion in an EM Field
  • · Replies 1 ·
Replies
1
Views
1K
Question about differential cross section
  • · Replies 3 ·
Replies
3
Views
2K
What is the branching ratio for alpha decay to Pu-237?
  • · Replies 1 ·
Replies
1
Views
1K
[Griffiths ex4.2] Electric field of a uniformly polarized sphere
  • · Replies 4 ·
Replies
4
Views
4K
How to calculate the axial components for a helix?
  • · Replies 1 ·
Replies
1
Views
2K
How Do You Integrate sin(2kz) from Negative Infinity to z?
  • · Replies 7 ·
Replies
7
Views
2K
Show that this Equation Satisfies the Schrodinger Equation
  • · Replies 5 ·
Replies
5
Views
3K
What Potential Should Be Used for Energy Stored in a Charged Sphere?
  • · Replies 1 ·
Replies
1
Views
1K
Density matrix of an ammonia molecule
  • · Replies 7 ·
Replies
7
Views
2K
Oscillation of a driven RLC network
  • · Replies 19 ·
Replies
19
Views
3K
How to use the Bremsstrahlung flux to analyse a medium?
  • · Replies 1 ·
Replies
1
Views
1K
Potential energy of a shell and a disc, both covered uniformly with charge
  • · Replies 2 ·
Replies
2
Views
2K
How can I use spherical coordinates to simplify the Fourier transform equation?
  • · Replies 2 ·
Replies
2
Views
1K
Equation of state for a real gas
  • · Replies 7 ·
Replies
7
Views
2K
Green's Function for a harmonic oscillator
  • · Replies 9 ·
Replies
9
Views
5K
Work check and advice on a statistical mechanics problem
  • · Replies 3 ·
Replies
3
Views
1K
To prove that a coherent state is an eigenstate of the annihilation operator
  • · Replies 2 ·
Replies
2
Views
2K
Nucleon-nucleon scattering; why can we assume ##l=0##?
  • · Replies 1 ·
Replies
1
Views
1K
Understanding Energy Levels and Transitions in Magnetic Fields
  • · Replies 5 ·
Replies
5
Views
2K
The Lagrangian for a piece of toast falling over the edge of a table
  • · Replies 5 ·
Replies
5
Views
2K
Second Virial Coefficient, numerically
  • · Replies 1 ·
Replies
1
Views
979
Square wire in a cylindrical magnetic field
  • · Replies 2 ·
Replies
2
Views
2K
Traveling Wavefunction: Differentiating & Relating $\Psi$
  • · Replies 2 ·
Replies
2
Views
2K
Statistical mechanics problem about a paramagnet
  • · Replies 10 ·
Replies
10
Views
3K
How Do You Determine Heat Capacity for Liquids?
  • · Replies 2 ·
Replies
2
Views
2K
Circulation of water in a cylindrical reservoir
  • · Replies 1 ·
Replies
1
Views
2K
Tensor Force Operator Between Nucleons: Spin & Position
  • · Replies 1 ·
Replies
1
Views
2K
Lagrangian and Equations of Motion for Conical Pendulum
  • · Replies 2 ·
Replies
2
Views
6K
Dirac delta function of a function of several variables
  • · Replies 3 ·
Replies
3
Views
3K
Proving Even Parity for this Expression
  • · Replies 1 ·
Replies
1
Views
2K
Understanding solutions of Dirac equation
  • · Replies 5 ·
Replies
5
Views
2K
Find ψ(x, t) and P(En) at t > 0 infinite well
  • · Replies 8 ·
Replies
8
Views
2K
What is the area element of angular distribution of charge?
  • · Replies 2 ·
Replies
2
Views
1K
ADM field Lagrangian for a source-free electromagnetic field
  • · Replies 1 ·
Replies
1
Views
3K
Kramers-Kronig Relations: Principal Value
  • · Replies 8 ·
Replies
8
Views
5K
How Did Sci-Fi Shape Denis Villeneuve's Filmmaking Career?
  • · Replies 1 ·
Replies
1
Views
1K
How to determine particle energies in center of momentum frame?
  • · Replies 1 ·
Replies
1
Views
1K
Poincare algebra and its eigenvalues for spinors
  • · Replies 3 ·
Replies
3
Views
3K
Second Quantization - Quasiparticles
  • · Replies 3 ·
Replies
3
Views
2K
The position and momentum operators for a free particle in Heisenberg picture
  • · Replies 2 ·
Replies
2
Views
4K
Analytical solution of the Photon Diffusion Equation
  • · Replies 3 ·
Replies
3
Views
2K
How Do Lorentz Group Commutation Relations Apply to Spin Matrices?
  • · Replies 1 ·
Replies
1
Views
2K
Rotational Dynamics, 1.68(SS.Krotov) and 1.264(Irodov)
  • · Replies 3 ·
Replies
3
Views
3K
Minimum energy positron electron collision producing Z-boson
  • · Replies 1 ·
Replies
1
Views
2K
Spin-##\frac{1}{2}## particles in infinite square well
  • · Replies 9 ·
Replies
9
Views
6K
Mixture of different gases at different temperatures
  • · Replies 5 ·
Replies
5
Views
2K
An electron in an oscillating magnetic field
  • · Replies 4 ·
Replies
4
Views
2K
Calculating field transformation
  • · Replies 1 ·
Replies
1
Views
2K
4 momentum mass non-conservation, special relativity
  • · Replies 2 ·
Replies
2
Views
2K
Solving a PDE with boundary problem
  • · Replies 4 ·
Replies
4
Views
2K
Half infinite cylinder uniform charge
  • · Replies 16 ·
Replies
16
Views
3K
Spherical capacitor with dielectrics
  • · Replies 10 ·
Replies
10
Views
5K
Observing galaxies: area of sky would I need to survey
  • · Replies 8 ·
Replies
8
Views
2K
About initial mass function and mean mass in stellar cluster
  • · Replies 3 ·
Replies
3
Views
2K
Volume integral over a gradient (quantum mechanics)
  • · Replies 2 ·
Replies
2
Views
2K
Fourier transforms, convolution, and Fraunhofer diffraction
  • · Replies 2 ·
Replies
2
Views
2K
Equation of motion for oscillations about a stable orbit
  • · Replies 2 ·
Replies
2
Views
5K
The potential between a cone and a plate
  • · Replies 6 ·
Replies
6
Views
3K
Temperature profile between two parallel plates
  • · Replies 15 ·
Replies
15
Views
4K
Did I Misinterpret the Change of Sign in the Feynman Propagator Integral?
  • · Replies 15 ·
Replies
15
Views
4K
Some questions about surface plasmon polaritons
  • · Replies 1 ·
Replies
1
Views
2K
Superconductor in an external magnetic field
  • · Replies 3 ·
Replies
3
Views
4K
How Does Energy Transformation Occur in Quantum Orbital Mechanics?
  • · Replies 6 ·
Replies
6
Views
4K
Galilei Transformation Free Schrödinger Equation
  • · Replies 8 ·
Replies
8
Views
7K
Boltzmann equation - Why does theta = 5040/T
  • · Replies 2 ·
Replies
2
Views
2K
Bessel Function Boundary Condition on the top of a Cylinder
  • · Replies 13 ·
Replies
13
Views
3K
If A and B are Hermitian operators is (i A + B ) Hermitian?
  • · Replies 4 ·
Replies
4
Views
4K
How to Diagonalize a Hamiltonian Using Bogoliubov Transformation?
  • · Replies 3 ·
Replies
3
Views
2K
Thermal Conductivity Problem-- Two Reservoirs
  • · Replies 9 ·
Replies
9
Views
2K
Fermi energy of multiple electrons, infinite potential well
  • · Replies 6 ·
Replies
6
Views
7K
Why Do Voltage-Current Graphs in the Franck-Hertz Experiment Show Tops and Dips?
  • · Replies 4 ·
Replies
4
Views
3K
Darwin term in a hydrogen atom - evaluating expectation values
  • · Replies 1 ·
Replies
1
Views
3K
Can Lagrangian Method be Applied to Solve Rocket Motion Equations?
  • · Replies 3 ·
Replies
3
Views
3K
Conductor sphere floating on a dielectric fluid
  • · Replies 1 ·
Replies
1
Views
3K