Free advanced physics homework help via qualified mentors. Upper undergraduate and graduate level. Please use the template when requesting help and show your work.
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Deriving the Laplacian in spherical coordinates
- Mayhem
- · Replies 9 ·
Space-like trajectory in Schwarzschild spacetime
- crime9894
- · Replies 3 ·
Possible Results and Probabilities of a Measurement of Operator Q
- koil_
- · Replies 7 ·
The Cooper Problem in tight binding
- mcas
- · Replies 1 ·
Built in Voltage of 3-Layer PN Junction
- Mr_Allod
- · Replies 7 ·
Checking if a function is an equipotential surface
- patric44
- · Replies 3 ·
Baseball Magnus effect deviation with lift force and drag
- JD_PM
- · Replies 1 ·
Phonon density of states and density of states of free electrons
- chikchok
- · Replies 3 ·
Why Shift ##z_0## by ##-i\epsilon## in Non-Convergent Integrals?
- Jufa
- · Replies 1 ·
How to explain the Quantum Mechanics/Math of the stages of MRI imaging
- kbansal
- · Replies 4 ·
Depletion width of linearly doped PN-junction
- Mr_Allod
- · Replies 1 ·
Fermi-Dirac distribution at T->0 and \mu->\epsilon_0
- mcas
- · Replies 1 ·
Linear momentum of the Klein Gordon field
- Jufa
- · Replies 2 ·
I have to prove that vectors in spherical coordinates are clockwise
- Danielle46
- · Replies 2 ·
A problem in graphing electric field lines
- patric44
- · Replies 17 ·
How Do Bound Charges Affect Polarization in Electrodynamics?
- Gustav
- · Replies 27 ·
Finding bound charge density from polarization in a dielectric
- Gustav
- · Replies 1 ·
Analysing the Normal Modes and Dynamics of a Cluster of Atoms
- Mr_Allod
- · Replies 1 ·
Find the equation of motion using the Lagrangian for this Atwood machine
- Istiak
- · Replies 7 ·
Find equation of motion of an inclined plane when there's friction
- Istiak
- · Replies 2 ·
Equilibrium circular ring of uniform charge with point charge
- PhDeezNutz
- · Replies 7 ·
Unstable or stable electrostatic equilibrium?
- Angela G
- · Replies 69 ·
Conservation of the Laplace-Runge-Lenz vector in a Central Field
- stephenklein
- · Replies 3 ·
Magnetic field from vector potential and gauge transformation
- Gustav
- · Replies 44 ·
The Pressure-Entropy Relationship for a Photon Gas
- Bookworm092
- · Replies 3 ·
Using Lagrangian to show a particle has a circular orbit
- gromit
- · Replies 4 ·
Why is the first-order perturbation coefficient constant in Griffiths 9.12?
- Viona
- · Replies 8 ·
How to Derive the Expression for \(\delta W = -E dP\)?
- appmathstudent
- · Replies 4 ·
Is the magnetic field B→. a state function and exact differential?
- johankep
- · Replies 5 ·
Overlap integral of hydrogen molecule
- hicetnunc
- · Replies 1 ·
Why the bra vector is said to belong in the dual space?
- patric44
- · Replies 15 ·
Zero-point energy of diatomic hydrogen (particle in a box)
- Mayhem
- · Replies 3 ·
Is my procedure for finding the S_z matrix correct?
- Viona
- · Replies 19 ·
Expanding potential in Legendre polynomials (or spherical harmonics)
- rnielsen25
- · Replies 1 ·
Simple lie algebra that holds just four generators?
- PhysSub
- · Replies 2 ·
Using the Frobenius method on a 2D Laplace
- jkthejetplane
- · Replies 6 ·
How to find the partition function of the 1D Ising model?
- Dom Tesilbirth
- · Replies 1 ·
Fourier transform of the ground state hydrogen wave function
- Ado
- · Replies 9 ·
Finding unitary operator associated with a given Hamiltonian
- ubergewehr273
- · Replies 3 ·
Solving Problem 4 of DJ Griffiths Electrodynamics Chapter 9
- Zeeshan Ahmad
- · Replies 3 ·
Deriving energy and entropy from Helmholtz free energy of two-level system
- baseballfan_ny
- · Replies 6 ·
How do I correctly find the Christoffel symbol for a specific component?
- jordy1113
- · Replies 4 ·
Momentum transfer in electron-proton collision
- TheMercury79
- · Replies 10 ·
How do I calculate variance for volume, 𝑉 (i.e, ⟨Δ𝑉2⟩=⟨𝑉2⟩−⟨𝑉⟩2)?
- bumblebee77
- · Replies 2 ·
Is My Solution for the Speed of a Decaying Particle Correct?
- lriuui0x0
- · Replies 13 ·
The resultant intensity of two interfering waves
- Dom Tesilbirth
- · Replies 7 ·
Find the values of A, B, and C such that the action is a minimum
- Istiak
- · Replies 3 ·
Binding energy of Niobium-93 from the SEMF
- artis
- · Replies 4 ·
Find velocity with vector or without vector
- Istiak
- · Replies 3 ·
3D Laplace solution in Cylindrical Coordinates For a Hollow Cylindrical Tube
- jkthejetplane
- · Replies 1 ·
Can the Time-Energy Uncertainty Relation Simplify the Schrodinger Equation?
- Wannabe Physicist
- · Replies 2 ·
Find the eigenfunction and eigenvalues of ##\sin\frac{d}{d\phi}##
- Wannabe Physicist
- · Replies 6 ·
A Process of Successive Approximations
- Viona
- · Replies 2 ·
Rotation of a photograph of an object due to relativity
- user1139
- · Replies 3 ·
What happens to an atom's angular momentum when it absorbs an electron?
- LCSphysicist
- · Replies 1 ·
What Parameter Should Be Used in Variational Approximation for This Hamiltonian?
- LCSphysicist
- · Replies 1 ·
Kaluza-Klein Christoffel symbol with extra dimension
- user1139
- · Replies 2 ·
Is There a Flaw in Understanding Proper Time and Time Dilation?
- Wannabe Physicist
- · Replies 5 ·
Relative intensities of fine-structure components in an alkali
- hicetnunc
- · Replies 2 ·
Lorentz transformation of electron motion
- PainterGuy
- · Replies 13 ·
Sakurai Question regarding density matrix
- mpresic
- · Replies 10 ·
On the Validity of Swapping Dummy Indices in Tensor Manipulation
- Wannabe Physicist
- · Replies 2 ·
Violate current conservation in Perfect Magnetic Conductor (PMC)
- baby_1
- · Replies 2 ·
How Does Scalar QCD Beta Function Calculation Differ in Various Sources?
- fenyutanchan
- · Replies 1 ·
What is the relationship between tension and mass for an artificial satellite?
- adammish
- · Replies 10 ·
Operator acts on a ket and a bra using Dirac Notation
- Viona
- · Replies 14 ·
Potential outside a grounded conductor with point charge inside
- daiisibil
- · Replies 7 ·
Bessel equation solutions in cylindrical dielectric waveguide with boundary conditions
- krakatoa
- · Replies 4 ·
Variation of Riemann tensor and boundary term in Einstein-Hilbert action
- user1139
- · Replies 2 ·
Phase velocity in oblique Angle propagation (Plane wave)
- baby_1
- · Replies 3 ·
How Do You Compute Killing Vectors for a Given Metric?
- LCSphysicist
- · Replies 1 ·
Constructing an Eigenvector of S with Eigenvalue λ1
- Passers_by
- · Replies 29 ·
Two spin-1/2 particles with Hamiltonian H = (A/ℏ²)S₁·S₂
- LCSphysicist
- · Replies 3 ·
Charge invariance with Heaviside's function
- Frostman
- · Replies 17 ·
Proof involving exponential of anticommuting operators
- Joker93
- · Replies 1 ·
Conservation of charge with Dirac delta
- Frostman
- · Replies 5 ·
How does the derivative b_ij ∂x_j/∂x_k simplify to b_ik?
- Nickpga
- · Replies 21 ·
Attenuation and Phase constant values in wave equation
- baby_1
- · Replies 2 ·
Time evolution of a particle in momentum space
- Foracle
- · Replies 1 ·
Negative phases in a numerical term
- Blanchdog
- · Replies 1 ·
De-excitation of a moving atom with photon emission
- Frostman
- · Replies 6 ·
Discrepancies in Electron Wavefunction Probability Calculation?
- hicetnunc
- · Replies 7 ·
Deriving the dispersion relation for inertial waves in rotating fluids
- Angelo Pascal
- · Replies 2 ·
Why measure radon-222 activity at equilibrium in alpha spectroscopy
- user1139
- · Replies 2 ·
Finding Energy in FCC Lattice Using Weak Potential Method
- mcas
- · Replies 1 ·
Photon-particle collision and center-of-mass frame in special relativity
- Haorong Wu
- · Replies 2 ·
Kepler problem in parabolic coordinates
- Kate_12
- · Replies 1 ·
Capacitance of a parallel-plate Capacitor with non uniform dielectric
- approx12
- · Replies 17 ·
Noether current: deriving equation (2.11)
- LCSphysicist
- · Replies 1 ·
Does measured current in N-type silicon include both electrons and holes?
- cemtu
- · Replies 7 ·
Gibbs free energy for superconductor in intermediate state
- patric44
- · Replies 1 ·
Weakly interacting Bosons in a 3D harmonic oscillator
- rmiller70015
- · Replies 4 ·
Transformation rules for vielbein and spin connection
- Steve Rogers
- · Replies 2 ·
Proving ##C## is constant in 4-dim ##R_{\mu\nu}=Cg_{\mu\nu}##
- crime9894
- · Replies 3 ·
RG flow of quadrupole coupling in 6+1 dimension electrostatic problem
- DaniV
- · Replies 1 ·
Unit calculations - DWI MRI (Stejskal-Tanner)
- Eowyn
- · Replies 1 ·
Combining the Spins of 3 spin 1 particles
- rmiller70015
- · Replies 2 ·
Calculating work and heat transfer in this Carnot process
- approx12
- · Replies 1 ·
What is the number of confined states in these potential wells?
- patric44
- · Replies 3 ·
Showing orthogonality of plane wave solutions
- user1139
- · Replies 3 ·