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
The instability of Rutherford's atomic model
- GuitarDean
- · Replies 3 ·
Calculating work in Adiabatic compressions
- T-7
- · Replies 6 ·
Why does the symmetric part of the current tensor drop out in equation 8.55?
- ehrenfest
- · Replies 6 ·
Linear Combinations of Eigenfunctions
- Rahmuss
- · Replies 19 ·
Millikan oil drop experiment with multiple rise times
- howin
- · Replies 1 ·
Electric Field Approximation for Linear Quadrapole Problem
- Old Guy
- · Replies 8 ·
Normalization of a wave function with cosine
- wakko101
- · Replies 6 ·
Is there a nice short version of the L squared operator
- Brewer
- · Replies 6 ·
Why doesn't Zwiebach's solution use the equations of motion for problem 8.6?
- ehrenfest
- · Replies 2 ·
Does p^mu(tau) generate translations in equation 11.60?
- ehrenfest
- · Replies 2 ·
Lagrangian for rod sliding on two poles with bean on rod
- Kate R
- · Replies 3 ·
Finding Christoffel symbols in cylindrical coordinates
- n1mrod
- · Replies 5 ·
Sum of Spacelike Vectors: Always Spacelike?
- ehrenfest
- · Replies 2 ·
Harmonic oscillation, spring not attached to center of mass
- Antti
- · Replies 1 ·
Creation of an Electron-Positron Pair by a Photon
- howin
- · Replies 1 ·
Derivation of the Hamiltonian of the Heisenberg model
- genloz
- · Replies 1 ·
Deriving minimum and maximum speeds on a banked circular curve
- fineztpaki
- · Replies 1 ·
Attraction and gravitational force.
- fineztpaki
- · Replies 5 ·
Solving 1-D Wave Equation w/ Fixed Boundaries
- Mindscrape
- · Replies 1 ·
How to Derive the Hamiltonian for a Two-Particle Harmonic Oscillator?
- indigojoker
- · Replies 7 ·
Thermodynamics compression problem
- T-7
- · Replies 2 ·
SHO Eigenvalues with Non-Standard Potential
- indigojoker
- · Replies 6 ·
How do I format equations in a post?
- Old Guy
- · Replies 1 ·
How Does the Sagnac Effect Cause Interference Patterns in a Rotating System?
- n0_3sc
- · Replies 2 ·
A bucket of mass 1.60 kg is whirled in a vertical circle of radius 1.00 m.
- fineztpaki
- · Replies 11 ·
Why Do Zwiebach's Light-Cone Gauge Equations for X^+ and X^- Differ?
- ehrenfest
- · Replies 12 ·
Covariant and contravariant analysis
- ehrenfest
- · Replies 5 ·
Is the Symmetric Tensor or Vector Equal to Zero Given a Specific Condition?
- ehrenfest
- · Replies 9 ·
Angular Velocity of Particle Rod System After Impact
- captainjack2000
- · Replies 5 ·
Crystal Vibrations: Impurity in a monoatomic chain
- Perses
- · Replies 1 ·
Zwiebach Page 194 Q11.3: Understanding "Viewing" a Time-Dependent Heisenberg Op.
- ehrenfest
- · Replies 1 ·
Legendre polynomial integration
- neelakash
- · Replies 6 ·
What is the ground state electron configuration for phosphorus?
- Bill Foster
- · Replies 7 ·
Rolling hoop and lagrange multipliers
- ehrenfest
- · Replies 7 ·
Problem on perturbation theory
- sridhar
- · Replies 1 ·
Special Relativity-Lorentz Transformation
- Qyzren
- · Replies 1 ·
What is a Carnot Engine and How Does it Work?
- tomoyo_13m
- · Replies 3 ·
What Condition Determines Eigenket of A?
- zhaiyujia
- · Replies 3 ·
Quantum Theories: Are Distance and Time Truly Quantized?
- Phred101.2
- · Replies 5 ·
Partial derivatives - proving force is conservative
- Oblio
- · Replies 27 ·
Proton Scattering: Calculating Current Density
- madeinmsia
- · Replies 1 ·
Generalized coordinates: Understanding Kinetic Energy
- ehrenfest
- · Replies 3 ·
A straight line thermodynamic transformation
- T-7
- · Replies 2 ·
How Are Spin, SO(3), and SU(2) Related in Quantum Mechanics?
- plmokn2
- · Replies 1 ·
Finding tension in the rope for a flying pig in circular motion
- Centripetal X
- · Replies 1 ·
1-D simple harmonic oscillator
- indigojoker
- · Replies 3 ·
Projectile Motion Maybe Parametric equations?
- Lebelee
- · Replies 1 ·
Prove that spin in arbitary direction is hbar/2
- cks
- · Replies 1 ·
How Does an Electric Field Affect the Quantum Harmonic Oscillator?
- ehrenfest
- · Replies 3 ·
How do I solve for B in this moment and vector homework?
- ThomasHW
- · Replies 10 ·
What Is the Ratio of Nuclear to Atomic Radius for Mid-Periodic Table Elements?
- HungryChemist
- · Replies 7 ·
How Do You Derive the Lagrangian for a Pendulum on an Oscillating Cart?
- noranne
- · Replies 2 ·
Physical Chemistry, P.W.Atkins, the Schrödinger equation
- Dj pie safety
- · Replies 5 ·
How Do You Calculate a 3D Line Integral Along Multiple Paths?
- extreme2000
- · Replies 1 ·
Wavelength of Incident Photon?
- VenomHowell15
- · Replies 2 ·
Finding the Mirror Image Charge for a Point Charge Near a Conducting Sphere
- Bloodplasma
- · Replies 2 ·
Electrostatic Self-energy of an arbitrary spherically symmetric charge density
- harshey
- · Replies 5 ·
Negative charge orbiting two positive charges on z-axis
- mrk442
- · Replies 2 ·
If A|a⟩ = a|a⟩, does A† have eigenbra ⟨a*|?
- ConeOfIce
- · Replies 4 ·
Ground and Excited States in a Potential Well (QM)
- Poop-Loops
- · Replies 1 ·
Elapsed time on three clocks in a gravitational field
- HeLLe
- · Replies 2 ·
Mach zhender interforometer (round 2).
- MathematicalPhysicist
- · Replies 1 ·
Derivation of Zwiebach eq. 10.73 and momentum space gauge transformation
- ehrenfest
- · Replies 24 ·
How Far Apart Are the Minima in Young's Single Slit Experiment?
- stryker123
- · Replies 1 ·
Designing a Parallel-plate capacitor
- Bloodplasma
- · Replies 2 ·
Poisson's equation in 2 dimensions
- ehrenfest
- · Replies 8 ·
What is the method for solving the eigenvalue problem with integration by parts?
- MagicQuantum
- · Replies 1 ·
How Does a String with Varying Mass Move Through a Hole in a Table?
- Microzero
- · Replies 1 ·
Calculating Probability Current for Wave Function
- T-7
- · Replies 3 ·
How Do Energy and Momentum Conservation Apply to a Mass Sliding Down a Wedge?
- captainjack2000
- · Replies 5 ·
Understanding Einstein Notation for Derivatives of Fields
- ehrenfest
- · Replies 6 ·
Calculating Total Spin of an n-quark Hadron
- noospace
- · Replies 1 ·
Read the Clebsch-Gordan Coefficients?
- pivoxa15
- · Replies 1 ·
Calculating Average Values and Proving Inequality for Particle Potential - N^nX
- ultimateguy
- · Replies 4 ·
How Do Commutators Work in Quantum Mechanics?
- igaffed
- · Replies 1 ·
Question: Does Epsilon = i A^+/p^+ for Zwiebach Page 178?
- ehrenfest
- · Replies 2 ·
Zwiebach Page 172: Understanding Momentum and Length
- ehrenfest
- · Replies 4 ·
Is 2EN^2 dx^3 a Relativistic Invariant?
- Magister
- · Replies 2 ·
Using Lagrangian Formulation to Solve a Mass on a Wedge Problem
- bit188
- · Replies 2 ·
Quantum Mechanics Positional Operator
- UbikPkd
- · Replies 5 ·
Solved Problems for Sakurai Advanced QM - Leticia
- Lecticia
- · Replies 2 ·
Product rule for derivatives of operators
- sridhar
- · Replies 2 ·
Position Operator: f(\hat{x})=f(x)? Effects on g(x)
- zhaiyujia
- · Replies 4 ·
What is the significance of Hermitian components in operators?
- ehrenfest
- · Replies 18 ·
Zwiebach Page 183: Tracelessness with p^2=0?
- ehrenfest
- · Replies 6 ·
Muon energy - Reasonable result?
- December
- · Replies 2 ·
Can creation operators with different momenta commute this way?
- ehrenfest
- · Replies 7 ·
Normal frequencies of 2 pendula connected with a massless rigid rod
- smithg86
- · Replies 3 ·
Quantum tunneling probability density
- swain1
- · Replies 2 ·
Electron-Proton Elastic Collision
- Magister
- · Replies 2 ·
Is \(\psi(x) = \frac{1}{x^{\alpha}}\) in Hilbert Space?
- zhaiyujia
- · Replies 4 ·
Deriving Electric Field Energy Density for Arbitrary Charge Distribution?
- mystify
- · Replies 1 ·
Thermal Expansion of Bubbles in a Lake
- Jeann25
- · Replies 3 ·
Can a Satellite's Orbit Around Earth Be Quantized Like a Hydrogen Atom?
- December
- · Replies 2 ·
Special Relativity: Relative speeds of particles
- comwiz72
- · Replies 2 ·
Are there any operators that are not linear?
- stunner5000pt
- · Replies 6 ·
Cartesian Co-ordinates of Plane Wave
- Ayame17
- · Replies 1 ·
Proving the trace identity trace|a⟩⟨b|=⟨b|a⟩
- tchem
- · Replies 8 ·
Are \( \vec{u_1} \) and \( \vec{u_2} \) Orthogonal and Normalized?
- cscott
- · Replies 16 ·