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
What is the drift speed for plasma?
- ExoP01
- · Replies 1 ·
Is Particle 2 in the Eigenstate of ##S_z = \hbar/2##?
- andre220
- · Replies 7 ·
Classical and Lorentzian transformation for doppler effect
- leandrofosque
- · Replies 1 ·
Time ordering operator, interaction Lagrangian, QED
- askalot
- · Replies 1 ·
Replacing Lagrangian L with function f(L) for free particle
- nikolafmf
- · Replies 4 ·
Ground state energy from the variational method
- rwooduk
- · Replies 6 ·
What wave function should I choose for this problem?
- rwooduk
- · Replies 2 ·
Deriving the Maxwell-Boltzmann speed distribution
- fayled
- · Replies 17 ·
Relaxation time approximation and ideal hydrodynamics
- IWantToLearn
- · Replies 1 ·
Advanced Physics Exam Question ( Can't Answer It )
- BoanviaFx
- · Replies 1 ·
Possible sources of error in compound pendulum experiment?
- ah4p
- · Replies 4 ·
Hamiltonian of two identical spin-1/2 particles
- thecommexokid
- · Replies 8 ·
Slab Beam of electrons through Neutralising Ions
- Remembrandt
- · Replies 1 ·
Possible sources of error/uncertainty in bifilar pendulum?
- ah4p
- · Replies 1 ·
How Does a Light Gate Function in Physics Experiments?
- ah4p
- · Replies 1 ·
Lorentz Transformation in Bjorken & Drell QFT
- Maybe_Memorie
- · Replies 1 ·
Simple question on minimising the trial wavefunction
- rwooduk
- · Replies 3 ·
How to Find the Functional Extremum for Given Boundary Conditions?
- tfhub
- · Replies 1 ·
Entropy of translation and rotation of a molecules
- LmdL
- · Replies 1 ·
What are g and a in a Diffraction Grating Problem?
- asdfghhjkl
- · Replies 1 ·
Solve Wave Equation: e^(-x^2), x*e^(-x^2), -infinity<x<infinity
- JI567
- · Replies 22 ·
Quantum Field Theory-Gauge Transformations
- jameson2
- · Replies 1 ·
1-D Ising's model without B field, stat. mech., correlation
- fluidistic
- · Replies 3 ·
First-order perturbation for a simple harmonic potential well
- rwooduk
- · Replies 7 ·
Approaching the problem o 1D well that changes size
- Emspak
- · Replies 5 ·
A (relatively) simple QM Problem, but seeking my mistake
- Emspak
- · Replies 3 ·
Separation of Variables Spherical Coordinates
- cooev769
- · Replies 1 ·
Bose-Einstein condensate in a particular system
- fluidistic
- · Replies 1 ·
How Does the Derivative Term Arise in the Commutator of Electromagnetic Fields?
- naima
- · Replies 1 ·
Fermi distribution: Sum over states --> integral over states
- Nikitin
- · Replies 2 ·
Lagrangian equation for unconstrained motion
- heycoa
- · Replies 6 ·
Help please -- What is a Rayleigh? How do I work with it?
- andryd9
- · Replies 4 ·
Getting Magnetic Field from Electric Field
- schrodingerscat11
- · Replies 1 ·
Analytic verification of Kramers-Kronig Relations
- Septim
- · Replies 1 ·
Normalization coefficient for Spherical Harmonics with m=l
- david13579
- · Replies 1 ·
General Relativity: Curvature and Stress Energy Tensor
- StephenD420
- · Replies 1 ·
Euler-Lagrange Equations for Two Body Problem
- _Kenny_
- · Replies 5 ·
Finding a scalar field given two gauge fields
- rwooduk
- · Replies 2 ·
What Do the Letters and Symbols in This String Theory Equation Represent?
- Bobby Lounsbury
- · Replies 5 ·
How Can Identity Operators in Quantum Mechanics Be Demonstrated?
- physiks
- · Replies 10 ·
Rod-Spring System Homework: Verifying Parts a) & b)
- ghostfolk
- · Replies 1 ·
How Does a Moving Particle Affect the Rotation of a Spherical Top?
- Ben Johnson
- · Replies 9 ·
What Are the Eigenfunctions for the 1D Infinite Square Well?
- andre220
- · Replies 1 ·
Power required to move a glass bead in a viscous fluid
- rwooduk
- · Replies 5 ·
Uncovering the Mystery: 2D Creatures on Expanding Sphere
- Behrad
- · Replies 1 ·
Are These Dimensions of Physical Quantities Correct?
- Anique
- · Replies 5 ·
Solving kinetic energy of reaction's products
- Ryan.L
- · Replies 2 ·
Oscillation of nonrelativistic Strings
- moriheru
- · Replies 1 ·
Identical ideal gas in two different volume containers
- keltik
- · Replies 7 ·
Partition Function Homework: Solve for N Particles in Spherical Container
- muskie25
- · Replies 8 ·
How Can J Be a Fraction in Spectroscopic Notation?
- MariusM
- · Replies 2 ·
1D ising model - Helix-coil transistion
- Matt atkinson
- · Replies 41 ·
Pendulum and spinning mass -- Coupled
- dwieker
- · Replies 1 ·
Solve Finite Potential Well: Schrödinger Eqn. & k=qtan(q*a)
- feynwomann
- · Replies 2 ·
Problem 2.4 Griffiths E&M 3rd ed -- E-field above a square loop
- darkexcalibur87
- · Replies 1 ·
Proving Correspondence between SO(3)/SO(2) and S^2
- quantum_smile
- · Replies 5 ·
Temporal component of the normal ordered momentum operator
- mjordan2nd
- · Replies 2 ·
What is the Threshold for Interband Optical Transitions in a 2D Square Lattice?
- CAF123
- · Replies 1 ·
Beta+ meson, decay - Relativistic kinematics
- Matt atkinson
- · Replies 6 ·
Lorentz Transform on Covariant Vector (Lahiri QFT 1.5)
- BucketOfFish
- · Replies 2 ·
Associated vs. Non-associated Laguerre Polynomials
- terp.asessed
- · Replies 1 ·
How Does Temperature Change When Two Halves of a Heated Cylinder Are Rejoined?
- skrat
- · Replies 1 ·
How to order Feynman Rules for Fermions
- Xenosum
- · Replies 1 ·
Simplifying generalised Wave Equation
- BOYLANATOR
- · Replies 2 ·
Lagrangian is invariant under the transformation
- Chopin
- · Replies 2 ·
Radiation in the far field for a current carrying loop
- Mr. Rho
- · Replies 1 ·
Boundary Conditions for Rectangular Vibrating Membrane
- dave11420
- · Replies 1 ·
Relationship between applied electric field and resulting surface charge desnity
- sagarbhathwar
- · Replies 4 ·
How Do Compatible Observable Properties Transform Between Equations?
- alui
- · Replies 1 ·
Curl of Z-unit vector in spherical coordinates
- SalcinNossle
- · Replies 3 ·
Infinite-square-well potential Problem
- Rorita_a82
- · Replies 4 ·
Solving Gravitational Lensing Homework for Hubble Constant
- MrSavikins
- · Replies 2 ·
Spherical Capacitor with Frequency Dependent Dielectric
- CopyOfA
- · Replies 1 ·
Cosmic Invent. HW: Determine Densities & Measurements
- MrSavikins
- · Replies 4 ·
Approximation question -- How does this approximation simplify the integral?
- RF_FAN
- · Replies 3 ·
Two-dimensional infinite potential box
- skrat
- · Replies 8 ·
Convert Hamiltonian to matrix in weird basis
- emeriska
- · Replies 17 ·
Energy of Scalar Field: Evaluating Rubakov's Expression
- quantum_smile
- · Replies 3 ·
Can a spinning dielectric sphere induce a magnetic field?
- Nikitin
- · Replies 11 ·
Probability and Energy of a Particle in Coherent State
- skrat
- · Replies 16 ·
Pressure caused by explosion in closed container
- Reluctant Atom
- · Replies 5 ·
Angular Momentum squared operator (L^2) eigenvalues?
- terp.asessed
- · Replies 4 ·
Light travel time since dark energy - matter equivalence
- leonmate
- · Replies 2 ·
3-angular momentum : independent of pivot?
- unscientific
- · Replies 1 ·
Point Mass Inside Hoop: Parametric Equation & Euler-Lagrange E.o.m.
- Oskar Paulsson
- · Replies 2 ·
Which Graph Matches Each Energy Structure in a 3-Level System?
- Kjkus
- · Replies 1 ·
How Does a Particle Behave in a One-Dimensional Delta Potential?
- skrat
- · Replies 3 ·
Energy of a magnet/iron system (eg. gauss rifle)
- Wxfsa
- · Replies 1 ·
U(0)=0 for real expectation values of momentum
- rtellez700
- · Replies 1 ·
Calculate the Hamiltonian chain I for Te122-128
- Pual Black
- · Replies 1 ·
Expectation value of a SUM using Dirac notation
- rwooduk
- · Replies 5 ·
Qubits Entanglement: Calculate & Interpret
- amgo100
- · Replies 3 ·
Verifying Bloch's Theorem with Φk(x)
- loginorsinup
- · Replies 1 ·
What is the Fault in My Derivation of the Wave Equation in a Conductor?
- Nikitin
- · Replies 1 ·
QM - free particle in one dimensional dpace
- skrat
- · Replies 3 ·
In the molten polymer tube model, how do I work out the volume of a tube?
- jeebs
- · Replies 6 ·
Variance in position for the infinite square potential well?
- 21joanna12
- · Replies 7 ·
How Does a Magnetic Field Influence a 2D Harmonic Oscillator?
- iamnoy
- · Replies 1 ·
Need help with Schrödinger and some integration
- Basip
- · Replies 7 ·
Probability for a particle in a box
- rmjmu507
- · Replies 1 ·