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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Angular Momentum: Adding Electron Spin in Hydrogen Atom
- indecicia
- · Replies 3 ·
How Do You Calculate Electron-Muon Scattering Amplitude in Particle Physics?
- gn0m0n
- · Replies 4 ·
How are Clebsch-Gordan coefficients derived for the Delta(1232) particle?
- stunner5000pt
- · Replies 4 ·
What Are the Dimensions of a Wave Function in Various Box Problems?
- armis
- · Replies 5 ·
Scattering Vs Absorption Crossection
- therimalaya
- · Replies 1 ·
Motion of Charges: Surface Charge Density
- Niles
- · Replies 6 ·
Solving Newton's Laws: Get Help Here!
- asi123
- · Replies 2 ·
Calculate the coefficint of kinetic friction between the slide and the child
- Rubberband
- · Replies 1 ·
Electric field of an infinite plane and a conductor
- Niles
- · Replies 27 ·
2 spin 1/2 particles in magnetic field
- oww
- · Replies 2 ·
Implementing critically damped in a process control system.
- Creepin_D
- · Replies 1 ·
Calculating clebsch gordan coefficients
- indecicia
- · Replies 4 ·
Simple Taylor or Multipole Expansion of Potential
- bavaji
- · Replies 1 ·
What is the standard deviation for a rock dropped off a cliff?
- Bill Foster
- · Replies 2 ·
Question on Electric Potential
- claran
- · Replies 1 ·
What Does the Maximum Proper Distance at z ~ 1.7 Mean in Cosmology?
- Niles
- · Replies 2 ·
Electric field from a wire with a stationary current
- Niles
- · Replies 2 ·
Expanding the Commutator of 3 Operators A, B, and C - Quantum/Math Question
- cosmic_tears
- · Replies 8 ·
Material Breakdown Due to Electron Beam
- ajhunte
- · Replies 2 ·
Why Assume Potential Only in the x Direction in Electrostatics BVP?
- zigggggy
- · Replies 1 ·
Proving 4-vector Analog Formula for Lorentz Boost
- cosmic_tears
- · Replies 2 ·
How do I determine the direction of M and H in a homogeneous cylinder?
- Niles
- · Replies 4 ·
The Faraday disc (unipolar generator) and Lenz' law
- Niles
- · Replies 2 ·
Laser cooling, varying magnetic field.
- sc86
- · Replies 2 ·
How Is Gauss's Law Applied to Calculate Deflection Angle in Charge Interaction?
- Graham1
- · Replies 5 ·
What Are the Energy Levels and Degeneracies in a 3D Infinite-Potential Well?
- freefallin38
- · Replies 2 ·
Solving Hydrogen Molecule Basis Functions
- rasko
- · Replies 4 ·
Grand Canonical Partition function question.
- MathematicalPhysicist
- · Replies 8 ·
How Can We Solve GRE (Physics) Practice Problems Together?
- dinunno
- · Replies 1 ·
Physical meaning of Pauli spin matrices and S_x, S_y, S_z operators
- gn0m0n
- · Replies 2 ·
Solving a Series Circuit with Resistor, Capacitor and Inductor
- Pacopag
- · Replies 2 ·
Solving a Physics Puzzle: Unraveling the Mystery of Iron-56
- crystalplane
- · Replies 2 ·
Angle of Deflection for a Moving Charge Passing a Fixed Charge
- Graham1
- · Replies 3 ·
Cyclotron Resonance (Solid State Physics)
- cepheid
- · Replies 3 ·
Electrostatic problem with vectors
- Niles
- · Replies 1 ·
What is the Maximum Energy a Solar Cell Can Deliver Per Year?
- jae05
- · Replies 3 ·
How to Resolve Convergence Failures in Gaussian NH3+ Calculations?
- bcjochim07
- · Replies 1 ·
Potential Energy Color Contour Question
- bcjochim07
- · Replies 1 ·
How Does Particle Energy Affect Transmission Probability in a Potential Well?
- EngageEngage
- · Replies 21 ·
How Can I Understand Euler-Lagrange Equations in Physics?
- NYSportsguy
- · Replies 6 ·
The generic spinor as a linear combination
- nowits
- · Replies 3 ·
Two long wires: induced electric field
- Pacopag
- · Replies 6 ·
What Are the Possible Values of Lz for an Electron in This State?
- dg88
- · Replies 4 ·
How Does Internal Resistance Affect Terminal Voltage in a Circuit?
- Libra_girl
- · Replies 1 ·
Particle Penetrating through a Potential Barrier
- sara79999
- · Replies 1 ·
Calc K-Shell X-Ray Series Wavelengths for Zirconium Atom
- freefallin38
- · Replies 1 ·
Is the Lorentz Gauge Valid for Transformed Potentials in Electrodynamics?
- Pacopag
- · Replies 8 ·
QM perturbation theory: rigid diatomic molecule
- Pacopag
- · Replies 5 ·
Optimal Aperture Width for Solar Eclipse Pinhole Camera
- Pacopag
- · Replies 7 ·
Finding the Time for a Photon's Arrival
- Brewer
- · Replies 1 ·
Chemical Potential and Atmospheric Molecule Distribution at Constant Temperature
- MathematicalPhysicist
- · Replies 2 ·
Which Way Does the Normal Vector in da Point?
- Niles
- · Replies 4 ·
Capacitance of two different circular plates
- sander
- · Replies 8 ·
How does atmospheric scattering explain the faintness of starlight?
- neelakash
- · Replies 16 ·
Valence/conduction electron density of a classical gas
- iLIKEstuff
- · Replies 2 ·
Calculating Skin Temperature: Using a Thermometer with Resistance Equation
- Libra_girl
- · Replies 1 ·
Infinite square well eigen-energies
- Pacopag
- · Replies 3 ·
Electrostatics - Calculate the repelling force of a charge q
- 10001
- · Replies 7 ·
Hardest and Trickiest Question I've Encountered.
- gameomega
- · Replies 3 ·
Where Did I Go Wrong in My Big Bang Nucleosynthesis Calculation?
- Niles
- · Replies 2 ·
Easy - determining n from orbital radius
- t_n_p
- · Replies 8 ·
Electromagnetic radiation and photons
- freefallin38
- · Replies 8 ·
Linear algebra question (using braket notation).
- MathematicalPhysicist
- · Replies 5 ·
How Are Cooper Pairs Formed in Low Temperature Superconductors?
- t_n_p
- · Replies 1 ·
Which Fundamental Interaction Causes Degeneracy Pressure?
- loom91
- · Replies 8 ·
How Do You Normalize the Wavefunction of Non-Interacting Bosons?
- Brewer
- · Replies 1 ·
Calculating Magnetic Moments of Atoms: What Data is Needed?
- abdul-pablo
- · Replies 14 ·
Find Magnetic Field of an Elliptical Solenoid | Biot-Savart Law
- anothersivil
- · Replies 3 ·
How to Solve the Schrödinger Equation for a Delta Potential Barrier in a Box?
- tommy01
- · Replies 7 ·
Learning Feynman Diagrams from Peskin & Schroeder
- Icosahedron
- · Replies 5 ·
What is the relationship between speed and momentum increase?
- freefallin38
- · Replies 2 ·
How Much Older Is Frank When Mary Returns from Barnard's Star?
- freefallin38
- · Replies 7 ·
What is the Kinetic Energy of the Recoil Electron?
- Binxie08
- · Replies 1 ·
What Is the Expectation Value of Energy After an Infinite Square Well Expansion?
- Raze2dust
- · Replies 6 ·
Possible Sources of Error in Speed of Sound Lab
- classic91
- · Replies 1 ·
Distinguishing Between Compton Shift and Doppler Red Shift
- neelakash
- · Replies 1 ·
Pool Ball Collision: Solving for Angular Momentum and Friction
- Anony-mouse
- · Replies 31 ·
Height related gas pressure function
- fullerene
- · Replies 5 ·
What Is the Bandwidth and Wave Vector Solutions for a BCC Tight Binding Model?
- abdul-pablo
- · Replies 2 ·
Planck Spectrum and wavelength subsitution
- FortranMan
- · Replies 3 ·
Calculating Heat Discharge in a Steam Engine: Efficiency and Work Rate Analysis
- kasse
- · Replies 1 ·
Pendulum bob acceleration from horizontal release
- Ataman
- · Replies 1 ·
Half Spin in QM: Calculating Probability of Measured Eigenvalue at Time T=2T
- MathematicalPhysicist
- · Replies 5 ·
Galactic Dynamics (spherical potential)
- gupster
- · Replies 5 ·
How Do You Calculate the Potential Energy Between Two Dipoles?
- raintrek
- · Replies 2 ·
Finding the electric potential of point charge
- Niles
- · Replies 22 ·
I used the equation n1sinθ1 = n2sinθ2 and plugged in the values.
- tuanle007
- · Replies 7 ·
Solving Fabry-Perot Problem: Increase L by \lambda/2 to Scan FSR
- tuanle007
- · Replies 3 ·
How Big is the Black Hole if Differential Acceleration is 10 m/s²?
- Sanjay87
- · Replies 7 ·
Self-Reproducing Rays in a symmetric Resonator
- tuanle007
- · Replies 1 ·
How Does Material Dispersion Affect Pulse Length in a Waveguide?
- tuanle007
- · Replies 2 ·
Mechanics Question - Atoms Modelled As A Chain of Masses Connected By A Spring
- Purnell
- · Replies 4 ·
Measurement for a particle in a box
- adjklx
- · Replies 1 ·
Showing the components of a plane EM wave are perpendicular
- TheBaker
- · Replies 4 ·
Nuclear physics - number of nucleons on surface?
- aliaze1
- · Replies 4 ·
Raman Scattering - what emits the photon?
- n0_3sc
- · Replies 8 ·
Operators, normalised eigenstates and the generalised uncertainty relation
- humfri
- · Replies 5 ·
How Does a Delta Function Potential Affect a Quantum Particle's Radial Equation?
- maria clara
- · Replies 2 ·
Electrical potential of charged sphere
- kasse
- · Replies 3 ·