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Determining radius at which 50% of energy is in the profile.
- nabeel17
- · Replies 4 ·
No bose-Einstein condensate for a 2-d gas, how to prove it?
- fluidistic
- · Replies 2 ·
What Transitions Create Calcium's Emission Lines at These Wavelengths?
- unscientific
- · Replies 16 ·
Stress-energy tensor conservation with Noether current
- Maybe_Memorie
- · Replies 17 ·
Radial probability density of hydrogen electron
- leehufford
- · Replies 7 ·
Field Theory: Prove transformations are a symmetry
- gu1t4r5
- · Replies 2 ·
Is Schiff's Quantum Mechanics wrong? Degenerate stationary perturbation theory.
- ddd123
- · Replies 2 ·
How Do I Apply Multivariable Calculus to Thermodynamics Problems?
- kamu
- · Replies 9 ·
Quantum Dots and the "Particle in a 1-D Box" Model
- spaghettibretty
- · Replies 3 ·
Fermi Energy in Intrinsic Si, Ge, and GaAs
- NanoChrisK
- · Replies 1 ·
How do I correctly manipulate tensor components in different coordinate systems?
- sweetdreams12
- · Replies 5 ·
Calculating magnetic field to accelerate deutrons in a cyclotron
- sudipmaity
- · Replies 5 ·
What Fraction of Protons Interact in a Liquid Hydrogen Target?
- Annaino
- · Replies 1 ·
How Does the One-Dimensional Wave Equation Model Tensile Forces in a String?
- mSSM
- · Replies 3 ·
Deriving E = -∇φ from potential difference definition
- girlinphysics
- · Replies 4 ·
Monte Carlo problem - mean free path to a star
- Adoniram
- · Replies 3 ·
Orbital period around Schwarzschild radius
- Kyrios
- · Replies 5 ·
Equation of state of a hard sphere gas
- apj
- · Replies 1 ·
Computing Sverdrup transport across 35°N with beta effect
- geojon
- · Replies 1 ·
Precession of relativistic orbit in pure inverse-square force
- RylonMcknz
- · Replies 1 ·
Iron transforms from bcc to fcc.Ratio of nearest neighbour distance.
- sudipmaity
- · Replies 1 ·
Calculus of variations applied to geodesics
- JakobM
- · Replies 2 ·
How do you find the killing vectors for Minkowski space?
- fu11meta1
- · Replies 2 ·
How to Determine the Eigenvalues of a Hermitian Operator?
- Faust90
- · Replies 4 ·
Minimal Special Relativity - Reciprocity of Time Dilation
- VVS
- · Replies 1 ·
Potential Energy of 2 Spherical Shells
- Addie3333
- · Replies 1 ·
Harmonic oscillations of the electromechanical system (normal modes)
- sergiokapone
- · Replies 3 ·
Second-Order Harmonic Motion Equation: Solve as 2 linear diff eqs
- leonmate
- · Replies 5 ·
Lagrangian problem of a cylinder on inclined plane and two springs
- elano Blumer
- · Replies 14 ·
Can a Gun Fire an Artillery Shell to Hit Any Target Within a Given Surface?
- PsychonautQQ
- · Replies 4 ·
Commutator of complex Klein-Gordon solution with total momentum
- Dixanadu
- · Replies 1 ·
Carriers in Ag. Are these excited conduction electrons?
- ZedCar
- · Replies 1 ·
Green function for forced harmonic oscillator
- Judas503
- · Replies 3 ·
Thermodynamics: Work Under Isothermal Condition
- cox24
- · Replies 1 ·
Temperature at Galactic Scale Perturbation Horizon Entry?
- Kyrios
- · Replies 1 ·
Deriving stellar mass-luminosity and mass-radius relations from structure equations
- girlinphysics
- · Replies 1 ·
Rectangular Potential Barrier Boundary Conditions with E=V
- GoliathPSU
- · Replies 1 ·
How to Determine Induced Charge Density from Electric Potential?
- skrat
- · Replies 8 ·
Stable Equilibrium of Two Hemispheres: a<3b/5
- Latao Manh
- · Replies 1 ·
Find the Lagrangian of a System of Particles
- CM Longhorns
- · Replies 3 ·
Packing fraction in ionic structure
- CAF123
- · Replies 19 ·
Is the Maxwell-Chern-Simons Action Gauge-Invariant?
- Maybe_Memorie
- · Replies 4 ·
Covariant derivative for four velocity
- Kyrios
- · Replies 2 ·
Harmonic Osclillator Purturbation Matrix Elements
- teroenza
- · Replies 7 ·
Change in accessible states relating to change in energy
- leroyjenkens
- · Replies 1 ·
What is the Fermi energy of copper according to the Sommerfeld model?
- CAF123
- · Replies 2 ·
Stark effect and transition probabilities in hydrogen
- vedderfan94
- · Replies 1 ·
Kinetic energy of alpha particle in cockroft walton experiment.
- sudipmaity
- · Replies 1 ·
Finding constants for 3 wave functions
- terp.asessed
- · Replies 5 ·
How Do You Write the Hamiltonian in the Basis |\theta>?
- TeddyYeo
- · Replies 2 ·
How to Solve the Schrödinger Equation for a Finite Potential Well?
- Arbitrationer
- · Replies 2 ·
Solving Electrostatic Potential of a Spherical Conducting Shell
- hepcats pajamas
- · Replies 1 ·
Internal Symmetries (Prove Lagrangian is invariant)
- Breo
- · Replies 1 ·
Position wave function of two electrons
- Faust90
- · Replies 3 ·
Green's Function Using Image Charge
- ahmad1992
- · Replies 5 ·
Change in entropy, quasistatic, isothermal expansion
- Fuffuf
- · Replies 6 ·
Cauchy coefficients for ZnSe refractive index with wavelength in micrometers
- loginorsinup
- · Replies 6 ·
Total Angular Momentum Measurements
- andre220
- · Replies 3 ·
Why Landau's orbit integrals give different period than Cartesian analysis
- diegzumillo
- · Replies 3 ·
Why Does Water Take Longer to Cool Than Air in a Refrigerator?
- bmb2009
- · Replies 1 ·
Why Does Probability Not Depend on Time in a Ground State?
- jimmycricket
- · Replies 6 ·
Cosmology Questions: Show Max Size in Expanding Universe w/o Quotes
- roam
- · Replies 5 ·
Number Density of Photons (Cosmology)
- roam
- · Replies 5 ·
Bohr-Sommerfeld Rule: Solving for the Quantized Values of E, r, and ω
- knowLittle
- · Replies 1 ·
Thermal Conductivity of Steel experiment
- SalfordPhysics
- · Replies 13 ·
Proving that a Noether charge is constant
- Dixanadu
- · Replies 13 ·
Calculating atomic form factors for NaCl, LiF, GaP, and Si
- Lemenks
- · Replies 3 ·
Quantum mechanics: simultaneous eigenstates for operators
- Tailong
- · Replies 1 ·
Expectation Value of Composite System
- Sci
- · Replies 3 ·
A gaussian wavefunction of the harmonic oscillator
- photomagnetic
- · Replies 10 ·
Maximum rest mass in particle collision
- Sleestak
- · Replies 2 ·
Barrier thickness for maximum reflection of 12 eV electrons
- HelenaNikolai
- · Replies 1 ·
What is the Propagation Speed of Gravity Waves in Water?
- vector
- · Replies 3 ·
Statistical mechanics, spin average
- K space
- · Replies 1 ·
Degree of freedom of a block of wood sliding on a horizontal plane
- sudipmaity
- · Replies 3 ·
Potential inside concentric spherical shells with non-uniform charge density
- CopyOfA
- · Replies 1 ·
How Does Internal Pressure Affect Yielding in Steel Tubes?
- sssooo
- · Replies 15 ·
Orthonormal basis functions in Fourier decomposition
- terp.asessed
- · Replies 2 ·
Finding a constant from eigenfunction
- terp.asessed
- · Replies 5 ·
Non-Uniform Surface Charge Spherical Shell
- azupol
- · Replies 2 ·
Symmetry conditions for coupled scalar field Lagrangian
- Dixanadu
- · Replies 1 ·
Condensation shock problem with 1% vapor mass fraction
- meg25
- · Replies 1 ·
Magnetic moment of a particle suspended in a magnetic field?
- visharad
- · Replies 1 ·
Calculating energy released due to fission of heavy nucleus into equal nuclei.,,
- sudipmaity
- · Replies 1 ·
Gravitation Redshift for very dense stars
- Rubber Ducky
- · Replies 1 ·
Quantum Pendulum: Probability of Ground State After Length Change
- johnqwertyful
- · Replies 8 ·
How can I find the probability and expectation value in quantum mechanics?
- Martin Osborne
- · Replies 4 ·
Electrostatic Potential in Dielectric Medium
- fuchini
- · Replies 1 ·
Angular Momentum Conservation (Lorentz transf. + Noether Th.)
- Breo
- · Replies 1 ·
How Is the CsCl Unit Cell Described Using Its Primitive Cell and Basis?
- Lemenks
- · Replies 3 ·
Finding Energy Eigenvalues and Eigenfunctions for a Particle Well
- tasos
- · Replies 1 ·
What are the key concepts in solving 2D Density of States problems?
- Harsha sundar
- · Replies 1 ·
How is Chemical Potential Affected by Altitude in an Ideal Gas?
- benjibutton
- · Replies 1 ·
Ising model without spin-spin interaction
- fluidistic
- · Replies 13 ·
Cosmological Expansion: Estimating Present Horizon Length
- Kyrios
- · Replies 3 ·
Why do two atoms in a crystal give different lattice parameters in X-ray diffraction?
- Lemenks
- · Replies 1 ·
Finding |<+y|-θ>|^2 in terms of θ
- NanoChrisK
- · Replies 2 ·
Calculating Thickness of PTFE Membrane Air Filter
- laramman2
- · Replies 1 ·
Finding eigenvalue and a for exponential eigenfunction of hydrogen-like Hamiltonian
- terp.asessed
- · Replies 12 ·
Is the Pauli-Lubanski Vector Always Zero?
- tamiry
- · Replies 1 ·