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
How Does Frequency Affect Laser Diffraction Through a Phase Grating?
- franky_boy
- · Replies 1 ·
Principle Quantum Number - Transition
- cpmiller
- · Replies 1 ·
Numericals On Electrostatics (including Coloumbs Law)
- srijit92
- · Replies 2 ·
Calculating Solid Angle from Light Source: Steradians to Radians?
- raisin_raisin
- · Replies 3 ·
Project Ideas for Classical Mechanics
- projecthelp
- · Replies 1 ·
Power consumption for a specific time period
- mathew086
- · Replies 2 ·
Proving 2<T> = <x\frac{dV}{dX}> and Virial Theorem
- Void123
- · Replies 1 ·
Producing 100 iterations from Newton's method in matlab
- noblegas
- · Replies 5 ·
Question about reducible presentation
- lanbeiming
- · Replies 1 ·
The oscillation of liquid in U tube which has an acceleration
- IPhO' 2008
- · Replies 1 ·
Hermicity of alpha (dirac equation)
- ballzac
- · Replies 4 ·
Relativity: Gravitational Redshifting
- sawre
- · Replies 2 ·
D dimension scalar potential for point charge
- babyEigenshep
- · Replies 4 ·
Is (d^2/dx^2) a Hermitian Operator?
- kcirick
- · Replies 10 ·
Proving time independence of energy eigenstates
- Gnator
- · Replies 2 ·
Angular frequency precession of spinning top
- indie452
- · Replies 6 ·
Finding eigenvalue and normalized eigenstate of a hamiltonian
- noblegas
- · Replies 11 ·
Find the eigenstates and eigenvalues of the Hamiltonian.
- MathematicalPhysicist
- · Replies 34 ·
Another 2 questions in perturbation theory.
- MathematicalPhysicist
- · Replies 4 ·
What is the formula for calculating the mass of a star in astronomy?
- Unto
- · Replies 2 ·
Angular Momentum Homework: Visualizing Lr, Lθ & Lφ
- Oerg
- · Replies 4 ·
Help me put this rocket into orbit Need a jumpstart
- joeblack99999
- · Replies 1 ·
How to Calculate Induced EMF and Self-Inductance in a Long Solenoid?
- libelec
- · Replies 2 ·
How High is the Cliff if Radio Waves Interfere at 25 Degrees?
- a.a
- · Replies 16 ·
Solving Classical Mechanics #3d - Momentum p in Jaccobi Function
- Cosmossos
- · Replies 3 ·
Harmonic Oscillator Analytical Mechanics: Creation/Annihilation Ops
- Loxias
- · Replies 9 ·
The Hamiltonian vs. the energy function
- Loxias
- · Replies 4 ·
How Is Electric Potential Calculated Above a Charged Ring?
- jlanghart
- · Replies 1 ·
Cosmology: Horizon of the universe
- rabbit44
- · Replies 1 ·
Moment of Inertia Problems and Conservation of Energy
- Lancelot59
- · Replies 3 ·
Freq response of forced sinusoidal motion:
- H_man
- · Replies 2 ·
Terminal velocity of a falling conducting ring
- quasar_4
- · Replies 2 ·
Self and Mutual Inductance in a Toroid
- libelec
- · Replies 3 ·
Finding Thermal Equilibrium Temperature
- Bizkit
- · Replies 16 ·
Special Relativity: Pion Decay - Two Photons
- FaradayCage
- · Replies 2 ·
What Angle Does a Bullet-Impacted Pendulum Swing To?
- captainjack2000
- · Replies 3 ·
Commutator-like notation, index notation
- ncs22
- · Replies 2 ·
Specific heat capacity and friction
- chanella35
- · Replies 1 ·
A problem on the paraxial wave equation?
- jeebs
- · Replies 3 ·
Calculating Effective Nuclear Charge using Ionization Energy
- doublavay
- · Replies 3 ·
How Do Eigenstates of a Spin System Evolve in Time?
- Nafreyu
- · Replies 6 ·
Kinetics Problem: Finding average normal force
- woody89
- · Replies 4 ·
Using the AC or opening the windows
- Backstageff
- · Replies 8 ·
Determining the Temperature of a Hydrogen Gas
- captainjack2000
- · Replies 2 ·
Power reflectoin coefficient of EM Radiation on a good conductor
- Plutoniummatt
- · Replies 2 ·
Solve T2 for the Pulling Force T3 = 98.0 N
- lovemake1
- · Replies 1 ·
Given the electric flux find the total charge in a tiny sphere
- kacete
- · Replies 12 ·
Calculating Electron Energy Shift with Perturbation Theory
- MathematicalPhysicist
- · Replies 14 ·
How Do You Construct and Analyze Spin Matrices for a Spin 1 Particle?
- mtmcavoy
- · Replies 3 ·
Air drag and acceleration (not gravity)
- Unstoppable13
- · Replies 2 ·
Simple Harmonic Oscillator - Schrodinger Equation
- cpmiller
- · Replies 8 ·
Maxwell Stress Tensor Homework: Find E & B Field Components
- tomfrank
- · Replies 3 ·
Solving Poyntings Vector for a point charge
- HPRF
- · Replies 2 ·
How to Model an Isothermal Core in a Simplified Star?
- astrop
- · Replies 1 ·
Is there a video lecture on modern physics coordinates?
- lom
- · Replies 2 ·
Maxwell's Equations: Draw State of Polarization & Find B(x,t)
- leoflindall
- · Replies 4 ·
Is there always a potential for conservative motion?
- Nusc
- · Replies 2 ·
Classical Mechanics, clyinder inside a cylinder.
- Spoony
- · Replies 3 ·
Do (Lz)op and (L^2)op Commute?
- metgt4
- · Replies 8 ·
Derive the Period of an Oscillating Sphere
- SpringPhysics
- · Replies 20 ·
Solve Tension on Rope: 50kg Mass, 50m Length, 100m Height
- josey584
- · Replies 1 ·
Solve Astrophysics Problems: Quasar Time Scale and Density Models
- jdw_
- · Replies 1 ·
Easy variational principle question that I can't integrate
- mrausum
- · Replies 8 ·
Special Relativity - Lorentz Force Law
- Nusc
- · Replies 3 ·
What is the function for temperature distribution in a rod with heat springs?
- fluidistic
- · Replies 10 ·
How to Solve for the Magnetic Field of a Bar Magnet?
- k33g0rz
- · Replies 3 ·
Change in entropy in a polytropic process
- ricof
- · Replies 11 ·
Schroedinger's equation with positive energy
- Matthew888
- · Replies 5 ·
How Do You Calculate Orbital Speed in Different Galactic Density Models?
- CaptainEvil
- · Replies 1 ·
Block slides along an elevated track
- Slimsta
- · Replies 1 ·
Analysis of 4 Equal Masses on a Circular Path
- jameson2
- · Replies 2 ·
LEDs different colours and their forward(working) voltage
- indie452
- · Replies 1 ·
Comparing Quasar Varying Timescales to Black Hole S Radius
- CaptainEvil
- · Replies 3 ·
The equivilence of Power and Kinetic Energy
- Unto
- · Replies 4 ·
Eliminating Lambda to Solve Question 2(b) of Physics Homework
- Cosmossos
- · Replies 1 ·
What Is Geodesic Incompleteness in General Relativity?
- latentcorpse
- · Replies 3 ·
Minimum Coefficient of Friction for Non-Rolling Disk on Platform
- estalas
- · Replies 17 ·
Transforming coordinates for a vertical hoop
- Loxias
- · Replies 14 ·
Classical mechanics-acc. of a rod using inertia
- indie452
- · Replies 2 ·
Expectation value r^2 for a radial wave function
- blaksheep423
- · Replies 7 ·
Quantum tunnelling for a finite-square potential parrier
- blaksheep423
- · Replies 1 ·
Calculating Angular Velocity: Motor at 60rpm Comes to Rest in 10 Revolutions
- pratz
- · Replies 1 ·
Solving for Spring Compression: 2.3kg Dropped 4.82m
- jamexd
- · Replies 1 ·
Calculating Spring Constant using Minimum Energy State of hydrogen atom
- calphyzics09
- · Replies 5 ·
How do I effectively normalise the Schrodinger PDF with given conditions?
- Identity
- · Replies 6 ·
Sqaure Wave Fourier Transform question
- nissanztt90
- · Replies 3 ·
What is the relationship of modulus and temperature?
- pipibaby
- · Replies 1 ·
Proving Feynman Slash Identity: 2a\cdot b
- nicksauce
- · Replies 1 ·
Describing Physical Events with Spacetime Points
- latentcorpse
- · Replies 1 ·
LS-coupling for configurations with equivalent electrons
- damaks
- · Replies 3 ·
What are the Stress and Strain in each rod?
- thetruth1988
- · Replies 3 ·
How Do Coordinate Systems Affect Acceleration in Rotating Frames?
- Void123
- · Replies 3 ·
How Do You Calculate the Net Force on a Balloon?
- pipjordan
- · Replies 1 ·
Initial and final quantum numbers/Doppler shift/Spectral lines Question
- xago
- · Replies 3 ·
How Are Isospin Values Determined?
- jeebs
- · Replies 1 ·
Entropy of a One Dimensional Polymer
- M@B
- · Replies 2 ·
Compton Scattering (Back-Scattering)
- xago
- · Replies 1 ·
Microstates & Entropy of two subsystems of a 4 particle system? (ensembles?)
- radiance1
- · Replies 1 ·
Derivation of Chemical Potential
- Mbaboy
- · Replies 4 ·
Solving Relativistic Rocket Problem in Goldstein
- Corsair
- · Replies 14 ·