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

Interpreting a thermodynamics formula using a picture

  • PhysicsKush
  • · Replies 11 ·
Replies
11

Divergence of a radial field ##F=\hat{r}/r^{2+\varepsilon}##

  • PhysicsKush
  • · Replies 10 ·
Replies
10

Electric field a distance z from the center of a spherical surface

  • agnimusayoti
  • · Replies 26 ·
Replies
26

Electric Field Above a Square Loop with Linear Charge Density?

  • Vaentus
  • · Replies 11 ·
Replies
11

Independent parameters of the rotation tensor ##R_{ij}##

  • brotherbobby
  • · Replies 2 ·
Replies
2

Asymmetric uncertainty intervals in astrophysical data

  • ElectroFractal
  • · Replies 6 ·
Replies
6

What is the meaning of r' in the Multipole Expansion?

  • Tony Hau
  • · Replies 8 ·
Replies
8

Solve Bound Charge Question: Griffith's Book Example

  • Tony Hau
  • · Replies 4 ·
Replies
4

How to calculate the induced charge in an electric field

  • stanlee
  • · Replies 8 ·
Replies
8

Numerical Evaluation of the Kirchhoff Integral (Flux Pattern) (Units?)

  • PhDeezNutz
  • · Replies 1 ·
Replies
1

Why Is Velocity in Spherical Coordinates Given by This Equation?

  • Another
  • · Replies 2 ·
Replies
2

Why is the Electric Field of a Polarized Atom Different in Textbooks?

  • Tony Hau
  • · Replies 2 ·
Replies
2

Vector potential ##\vec A## in terms of magnetic field ##\vec B##

  • brotherbobby
  • · Replies 26 ·
Replies
26

Pendulum in accelerating car: solving motion near equilibrium

  • badluckmath
  • · Replies 6 ·
Replies
6

Normalizing wavefunction obtained from Lorentzian wave packet

  • XProtocol
  • · Replies 3 ·
Replies
3

Divergence Theorem Problem Using Multiple Arbitrary Fields

  • JackofTrades
  • · Replies 1 ·
Replies
1

The potential of a sphere with opposite hemisphere charge densities

  • Tony Hau
  • · Replies 6 ·
Replies
6

How to Derive the Conservation Law for the FRW Metric?

  • Markus Kahn
  • · Replies 1 ·
Replies
1

Surface charge density on a conducting sphere using Legendre polynomials

  • Tony Hau
  • · Replies 16 ·
Replies
16

Covariant derivative and the Stress-enegery tensor

  • Markus Kahn
  • · Replies 4 ·
Replies
4

Simplification of the Proca Lagrangian

  • fabstr1
  • · Replies 5 ·
Replies
5

Equation of motion in curved spacetime

  • Markus Kahn
  • · Replies 1 ·
Replies
1

How to derive this thermodynamic math identity

  • Hiero
  • · Replies 5 ·
Replies
5

Initial condition of Wave functions with Yukawa Potential

  • Riccardo Marinelli
  • · Replies 4 ·
Replies
4

Did I Make a Mistake in Analyzing the Oscillating String?

  • LCSphysicist
  • · Replies 2 ·
Replies
2

Single Particle Expectation of Energy Momentum Tensor

  • Diracobama2181
  • · Replies 1 ·
Replies
1

Solving Newton's 2nd Law for Particle Falling in Medium

  • TRB8985
  • · Replies 4 ·
Replies
4
Replies
2

Why Does Galileo's Tower of Pisa Experiment Predict an Eastward Drift?

  • JD_PM
  • · Replies 26 ·
Replies
26

How do you model suction force?

  • Adeel Ahmad
  • · Replies 2 ·
Replies
2

Modeling a spark gap--How to solve a DE with a step function

  • Motocross9
  • · Replies 3 ·
Replies
3

Laws of conservation in special relativity

  • LagrangeEuler
  • · Replies 31 ·
2
Replies
31

Classical Canonical Partition Function in Two Dimensions

  • Diracobama2181
  • · Replies 4 ·
Replies
4

ADM formulation Initial Value Problem data per spacepoint

  • TerryW
  • · Replies 1 ·
Replies
1

Legendre polynomial - recurrence relations

  • Joe20
  • · Replies 1 ·
Replies
1

Calculating Cv for PHYWE heat capacity of gases experiment

  • TechieDork
  • · Replies 4 ·
Replies
4

Estimation of the number of background events

  • Bolte Dela Paz
  • · Replies 3 ·
Replies
3

How Does Joule Thomson Expansion Affect Gas Temperature?

  • Rahulx084
  • · Replies 1 ·
Replies
1

How do my successive diffraction patterns look?

  • PhDeezNutz
  • · Replies 5 ·
Replies
5

Phase shifts for a localized Coulomb and harmonic potential

  • phywithAK
  • · Replies 1 ·
Replies
1

Small deviations from equilibrium and Lagrange multipliers

  • Ted Ali
  • · Replies 1 ·
Replies
1

Finding the coefficient of viscosity

  • joshm12
  • · Replies 6 ·
Replies
6
Replies
25

Heat engine that uses a rubber band (Thermodynamics)

  • Pedro Roman
  • · Replies 2 ·
Replies
2

Change of variables in a propagator

  • Jacob Nie
  • · Replies 1 ·
Replies
1

How Does Time-Reversal Invariance Affect Phi 4 Theory Renormalization?

  • Diracobama2181
  • · Replies 1 ·
Replies
1

Integrating ##\sigma=\chi\int{dA/A}## for a sphere

  • MartynaJ
  • · Replies 6 ·
Replies
6

Why is entropy expanded only in dV and dT, not all variables?

  • Jacob Nie
  • · Replies 4 ·
Replies
4

What is the formula for calculating reaction energy in an α decay?

  • Stephen Bulking
  • · Replies 6 ·
Replies
6

What Causes Bubble Oscillation According to Gauss's Law?

  • kenth
  • · Replies 1 ·
Replies
1

Questions about infinitesimal changes in a mechanics problem

  • Leo Liu
  • · Replies 4 ·
Replies
4

Cauchy-Riemann Theorem Example in Physics

  • entropy2008
  • · Replies 1 ·
Replies
1

Probability of projective measurement in Shankar

  • Jacob Nie
  • · Replies 3 ·
Replies
3

Showing properties of a propagator given certain Lorentz identities

  • JD_PM
  • · Replies 11 ·
Replies
11

A poor man's way to Schwarzschild Geometry

  • TerryW
  • · Replies 25 ·
Replies
25

Series expansion of the Lorentz Transformation

  • JD_PM
  • · Replies 22 ·
Replies
22

Griffiths 8.5: Impulse and Momentum parallel plate capacitor

  • KDPhysics
  • · Replies 3 ·
Replies
3

Quantum Optics Question Involving Coherent States

  • JD_PM
  • · Replies 15 ·
Replies
15

Ipho 1987, thermodynamics problem: Moist air ascending over a mountain range

  • Jacob White
  • · Replies 66 ·
3
Replies
66

How to calculate a solid angle in steradians from arcminutes?

  • Kayla Martin
  • · Replies 3 ·
Replies
3

Euler Lagrange equation and a varying Lagrangian

  • Tamin Ayoub
  • · Replies 1 ·
Replies
1

Relativistic energy and momentum conservation

  • denniszhao
  • · Replies 8 ·
Replies
8

On the orthogonality of the rotation matrix

  • brotherbobby
  • · Replies 4 ·
Replies
4

Calculating degeneracy of the energy levels of a 2D harmonic oscillator

  • sukmeov
  • · Replies 12 ·
Replies
12

Magnetic field of a rotating disk with a non-uniform volume charge

  • Light bulB 6626
  • · Replies 1 ·
Replies
1

Minimum time between two orthogonal states

  • Kaguro
  • · Replies 2 ·
Replies
2

How Does Wick's Theorem Apply to Time-Independent Bose Operators?

  • PeroK
  • · Replies 3 ·
Replies
3

Finding the potential function from the wavefunction

  • Kaguro
  • · Replies 10 ·
Replies
10

Calculating Terms in $\bra{P'}\phi^4\ket{P}$

  • Diracobama2181
  • · Replies 1 ·
Replies
1

"Astronomical Calculus" Spaceship Dilation problem

  • Sabertooth
  • · Replies 16 ·
Replies
16

Cylindrical Conductors Carrying a Current I -- Formula (?)

  • requied
  • · Replies 1 ·
Replies
1

Weird condition describing symmetry transformation

  • Markus Kahn
  • · Replies 2 ·
Replies
2

Could an operator act on a bra vector?

  • Haorong Wu
  • · Replies 9 ·
Replies
9

How to calculate an operator in the Heisenberg picture?

  • Haorong Wu
  • · Replies 13 ·
Replies
13

When does saturation vapor pressure exceed atmospheric pressure?

  • Jacob White
  • · Replies 18 ·
Replies
18

Center of mass energy for two relativistic colliding particles

  • squareroot
  • · Replies 2 ·
Replies
2

Thermodynamics Problem: Finding Heat Transfer

  • Jacob White
  • · Replies 1 ·
Replies
1

Equations of motion of a system with non holonomic constraints

  • DannyJ108
  • · Replies 3 ·
Replies
3

Hamiltonian mechanics: phase diagram

  • LuccaP4
  • · Replies 7 ·
Replies
7

Griffiths Problem 3.35. Harmonic Oscillator, Bra-ket notation

  • Irishdoug
  • · Replies 8 ·
Replies
8
Replies
8

Dispersion relation statistical mechanics

  • Luca2018
  • · Replies 2 ·
Replies
2

Please help me to be able to read the Christoffel symbol in EFE

  • diazdaiz
  • · Replies 2 ·
Replies
2

Gravitation: Object moving from infinity

  • TopsyKrate
  • · Replies 5 ·
Replies
5

Clausius theorem: why is T∑(dQi/Ti) ≤ 0?

  • Pouyan
  • · Replies 5 ·
Replies
5

Ultra Relativistic Free Electrons Gas

  • Victor_Andrade
  • · Replies 1 ·
Replies
1

Lagrange equations: Two blocks and a string

  • Zamarripa
  • · Replies 9 ·
Replies
9

Lagrangian mechanics: central-force-like problem

  • LuccaP4
  • · Replies 5 ·
Replies
5

EM: Separation of variables to find magnetic induction

  • phys194
  • · Replies 8 ·
Replies
8

Why is the degeneracy criterion the same for all stars?

  • Kayla Martin
  • · Replies 1 ·
Replies
1

QED, Electron-Proton Scattering: Rosenbluth cross-section

  • lapantufla
  • · Replies 1 ·
Replies
1

Magnetic field (correction term)

  • anaisabel
  • · Replies 8 ·
Replies
8

How to Derive Eq. (4.26) from Eq. (4.25) in Birger Bergersen's Book?

  • MathematicalPhysicist
  • · Replies 21 ·
Replies
21

Why is the entropy calculated differently in the microcanonical ensemble?

  • LagrangeEuler
  • · Replies 8 ·
Replies
8

Total Energy, Period and frequency of a masspoint

  • felicia
  • · Replies 1 ·
Replies
1

Solving the same question two ways: Parallel transport vs. the Lie derivative

  • Markus Kahn
  • · Replies 1 ·
Replies
1

How Does a Variable Mass Affect a Simple Pendulum?

  • DannyJ108
  • · Replies 9 ·
Replies
9

Heat distribution in a piece of glass receiving protons

  • Bqback
  • · Replies 6 ·
Replies
6

Energy gaps for quasi-free electrons in a 2D lattice

  • Adele
  • · Replies 1 ·
Replies
1

Normal incidence of a plane polarized wave through multiple mediums

  • DannyJ108
  • · Replies 3 ·
Replies
3