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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Quick question about semiconductor alloys and band gaps?
- jeebs
- · Replies 1 ·
How Do You Calculate the Moment of Inertia of a Hollow Sphere?
- christikiki22
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Matlab program for reaction diffusion system
- yaboidjaf
- · Replies 1 ·
Finding Velocity and angle for magnetic field
- kaikaii
- · Replies 4 ·
What Must the New Orbital Radius Be to Increase the Period to 8T?
- cheeselover87
- · Replies 3 ·
What is the net force on the rectangular loop due to the straight wire?
- dangish
- · Replies 6 ·
Breakdown of perturbation expansion
- commutator
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Quantum Infinite Potential Well - Probability of Ground-State Energy
- ARasmussen
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What is the force experienced by a wheel hitting an edge at 1.5m/s?
- Ottoturbo
- · Replies 7 ·
Finding current from current density of wire
- maherelharake
- · Replies 12 ·
Matrix element of Position Operator For Hydrogen Atom
- physics2004
- · Replies 1 ·
Understanding Image Charge and Potential in Electrostatics
- crimsonidol
- · Replies 3 ·
Covariant and contravariant components
- Deadstar
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Derive expression for Klein-Gordon annihilation operator
- orentago
- · Replies 13 ·
How to Construct Gamma Matrices in Higher Dimensions Using Sigma Matrices?
- y35dp
- · Replies 2 ·
How Do Energy and Time Relate in Heisenberg's Uncertainty Principle?
- zerat2000
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Calculate [D, r] and [D, p] with Dilatation Operator
- Goodwater
- · Replies 3 ·
Oscillation of a coil in a Magnetic Field
- mydir
- · Replies 2 ·
Aperture size of a diffraction grating
- truth is life
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How to Solve d^2 phi(y) / dy^2 = y^2 phi(y)?
- bon
- · Replies 9 ·
Retarded Potentials - variable change to actual position.
- JesseC
- · Replies 1 ·
Solving an ODE Related to Relativistic Mass Change
- renlok
- · Replies 1 ·
Max Shear Stress Homework: Find Max Stress
- Air
- · Replies 1 ·
Quantum Mechanics: total angular momentum of an electron in a hydrogen atom
- bdizzle329
- · Replies 2 ·
Quantum Mechanics Treatment of Harmonic Oscillator
- jameson2
- · Replies 1 ·
Quantum Mechanics wavefuction collapse
- sty2004
- · Replies 3 ·
Deriving pressure, density and temperature profile of atmosphere
- voxel
- · Replies 5 ·
Finding Entropy with three natural variables
- Katie1990
- · Replies 1 ·
Eigenstates of S^2: Calculating Eigenvalue for a Quantum System
- PhysicsForums
- · Replies 2 ·
Flow rate/ Bernoulli's equation
- creamypies
- · Replies 1 ·
Newtonian Gravity involving spheres in a trigonal pyramid
- JennV
- · Replies 1 ·
Mass on Right: Why Not p*[(b/2)-x]?
- Shackleford
- · Replies 1 ·
Isotropic Harmonic Oscillator Orbit Calculation | Central Motion Problem
- fightonfire59
- · Replies 1 ·
Show Noether Currents Given Dirac Eq & Conjugate
- latentcorpse
- · Replies 13 ·
How Do You Calculate the Effective Potential Energy in a Hydrogen Atom?
- rbnphlp
- · Replies 4 ·
What Is Δκ in the Superposition of Waves in Quantum Physics?
- tjkubo
- · Replies 1 ·
Capacitance of two long parallel wire
- thedaydreamer
- · Replies 11 ·
Snells law of refraction measuring displacement through medium
- georg gill
- · Replies 1 ·
Find the normalized eigenspinors of the 2 x 2 matrix
- Shackleford
- · Replies 9 ·
What is the Size of the Box for an Electron Transition?
- warfreak131
- · Replies 4 ·
Help With Tensors: Solving a Problem
- atomicpedals
- · Replies 1 ·
Magnetic Fields and the Biot-Savart Law
- DragcoDavid
- · Replies 1 ·
Is introduction to Electrodynamics belong here.
- yungman
- · Replies 3 ·
How Does an Electron's Spin Interact with a Non-Uniform Magnetic Field?
- JesseC
- · Replies 2 ·
Mixed states and pure states: what's the difference?
- jeebs
- · Replies 2 ·
Solve rolling problem using concept of angular momentum
- guthix
- · Replies 10 ·
Can you find two different constants by Noether's theorem
- qinglong.1397
- · Replies 7 ·
Rotational Dynamics involving a pulley, spring, and block
- JennV
- · Replies 2 ·
Potential inside sphere with surface charge density
- bcjochim07
- · Replies 3 ·
Calculate Binding Energy & Equilibrium Sep. of Na+/Cl- in NaCl
- ptar
- · Replies 1 ·
What Is the Maximum Bead Mass to Keep a Hoop Grounded?
- Tonyt88
- · Replies 2 ·
Interaction force, two dipoles
- mathman44
- · Replies 3 ·
What is the Kinetic Energy of a Pellet Colliding with a Satellite in Orbit?
- waterfaire
- · Replies 4 ·
Solving Laplace's Eqn: Setting Zero of Potential
- bcjochim07
- · Replies 1 ·
Forced Oscillation; general question.
- atomicpedals
- · Replies 1 ·
How are (u,v) and alpha+ related in the Eigenstates of Spin 1/2?
- Shackleford
- · Replies 6 ·
Multiplicity for 3 Dimensional problem
- Krazer101
- · Replies 4 ·
Calculating values of electric and amgnetic fields of laser beam
- krhisjun
- · Replies 8 ·
Where can I find helpful lecture notes for Spin and angular momentum?
- Shackleford
- · Replies 1 ·
Understanding the Fourier Transform and Its Applications
- occhi
- · Replies 1 ·
Simple Pendulum in an elevator
- Jumblebee
- · Replies 10 ·
Chemical potential of an ideal gas problem
- arenaninja
- · Replies 2 ·
What Does It Mean for a Cylinder to Be Charged to a Potential?
- gijkhama
- · Replies 13 ·
Change in Entropy for Isothermal Expansion
- ragingbuddha
- · Replies 3 ·
Spherical cavity in a dielectric with a point charge inside
- quasar_4
- · Replies 5 ·
Find Momentum Operators for 1s Electron in Hydrogen Atom
- leenaa
- · Replies 4 ·
Solving Irodov Electrodynamics Homework: Work Required to Transfer Charge q
- zorro
- · Replies 2 ·
Magnetic Field of Rotating Cylinder w/ Linear Polarization
- thatmaceguy
- · Replies 3 ·
Green's Function in Time-Dep. Schrodinger Eqn.
- kreil
- · Replies 10 ·
Equilibrium Distance Between Carts with Spring and Chain
- CornMuffin
- · Replies 1 ·
Question on Solving Laplace Equation Potentials.
- Fjolvar
- · Replies 1 ·
Lowest Energy State of Hydrogen Atom: Find A, Don't Miss the Obvious!
- Matthollyw00d
- · Replies 5 ·
Lorentz Invariants and Field Strength Tensor Fuv
- jc09
- · Replies 14 ·
Solve Hamiltonian Operator Question: What is [\hat{H}, i\hbar]?
- Jenkz
- · Replies 4 ·
Minimum Energy of Noninteracting Particles in 1D Box: Spin 1/2, 1, 3/2
- aznkid310
- · Replies 7 ·
Finding The Spectral Line Width
- Dew.J
- · Replies 1 ·
How Can I Effectively Study Electrodynamics and Overcome Its Challenges?
- dingo_d
- · Replies 4 ·
General coordinate transformations for tensors
- Deadstar
- · Replies 1 ·
String Under Tension with a transvers force distribution
- ts547
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QM: Operator in momentum representation
- Niles
- · Replies 4 ·
3d projectile motion, with rotating reference frame
- Jimbone
- · Replies 23 ·
Differentiating a constraint equation
- w3390
- · Replies 2 ·
What is the threshold energy for a neutrino reaction with a proton?
- jabers
- · Replies 1 ·
Hamiltonians and Expectation Values and Ehrenfest's theorum, OH MY ()
- Kvm90
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Can Qpsi be an eigenfunction of P given the commutation relation [P,Q]=P?
- lilsalsa74
- · Replies 9 ·
Solve Schrödinger Equation: Need Help
- schnuffi
- · Replies 3 ·
Spacecraft orbit homework problem
- kreil
- · Replies 1 ·
Quantum-Dot Fluorescence - Hypothetical Semiconductor
- knowlewj01
- · Replies 1 ·
Parallel Transport: Constancy of Magnitudes & Angles Along Geodesic
- latentcorpse
- · Replies 3 ·
Biological Effects of Radiation - 1st Year UG Physics
- P91
- · Replies 3 ·
How Does Charge Distribution Affect Potential in Electromagnetic Fields?
- solipsis
- · Replies 3 ·
Compton Scattering and Conservation of Momentum
- Nusc
- · Replies 21 ·
Advanced Problem in Electrostatics
- zorro
- · Replies 3 ·
How Do You Calculate the Landé g Factor for sd Configuration in jj Coupling?
- Irid
- · Replies 1 ·
Noninertial/fictitious forces (Movement on a rotating Earth)
- jasker
- · Replies 3 ·
Why Does Commuting Operators Require Test Functions in Quantum Mechanics?
- Shackleford
- · Replies 4 ·
Why do different origins result in different principal moments of inertia?
- Geocentric
- · Replies 2 ·
What Determines the Net Force in a DNA Molecule?
- treedwellerjess
- · Replies 3 ·
Average force if jumping off a building?
- mga2010
- · Replies 1 ·
Particles in an ideal monatomic gas
- Jason Gomez
- · Replies 3 ·