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
Why is Dark Matter essential for understanding the universe?
- bolahab
- · Replies 3 ·
Maximum Helium Fraction: Neutron Decay Time & Rest Mass Difference
- bolahab
- · Replies 2 ·
Radiation Question: Estimating Ωm & Time to t2×
- bolahab
- · Replies 4 ·
Can different masses be used in normal modes?
- miscellanyous
- · Replies 8 ·
Proving Angular Momentum is Conserved with Euler's Equations
- iacephysics
- · Replies 3 ·
Optics - Diffraction Homework Solutions
- ChEJosh
- · Replies 11 ·
Carnot Engine problem (including entropy?)
- yakattack
- · Replies 1 ·
Magnetic field of rotating cylinder
- Kruger
- · Replies 6 ·
Prove Covariant Four Vector: \frac{\partial\phi}{\partial x^{\mu}}
- ercagpince
- · Replies 9 ·
Matrix Mechanics Homework: Calculate [p,x] = i h-bar
- ehrenfest
- · Replies 12 ·
Understanding Fourrier Transforms in Quantum Mechanics: Help Needed!
- Fys
- · Replies 5 ·
Calculate Pressure & Height for Steel Bar on 1L Water
- predentalgirl1
- · Replies 1 ·
Question about relativistic effects at synchrotons
- SergioPL
- · Replies 2 ·
Magnetisation due to conduction electrons
- T-7
- · Replies 2 ·
How to Calculate Magnetic Field in a Toroid Using Ampere's Law?
- sfdevil
- · Replies 5 ·
Particle in a box wave function problem
- shan564
- · Replies 8 ·
Using Runge Kutta Method for T.I.S.E in Electron Motion Approximation
- Cinimod
- · Replies 4 ·
Can the Photoelectric Effect Distinguish Between Classical and Quantum Theories?
- neelakash
- · Replies 3 ·
Finding total number of particles in a given distribution
- Reshma
- · Replies 6 ·
Lagrangian Homework Help: Solving for Energy in a System of Two Hanging Masses
- bamftyk
- · Replies 1 ·
Why Does the Upper Integration Limit Change in Quantum Mechanics Problems?
- Woozie
- · Replies 6 ·
Energy levels in quantum well structures
- starla
- · Replies 1 ·
Expectation value of P^2 for particle in 2d box
- 3uc1id
- · Replies 1 ·
Can entropy change be zero for an irreversible process?
- supermesh
- · Replies 1 ·
Motion on a Paraboloid: Reduce to Quadratures
- neworder1
- · Replies 3 ·
Calculating the Period of Small Oscillations for a Floating Object
- Varnson
- · Replies 2 ·
Help Needed: Solving Kepler's Third Law for a Solar Elliptical Orbit
- nick227
- · Replies 2 ·
Question of Statistical Thermodynamics (Boltzmann Distribution)
- asdfTT123
- · Replies 6 ·
Why Do Mass Terms Not Cancel in N+pi to N+pi Scattering in QFT?
- jostpuur
- · Replies 6 ·
How Do You Use Current Balance and Hall Probes in Magnetic Field Measurement?
- mysqlpress
- · Replies 1 ·
What is the radius of curvature of an electron beam in a uniform magnetic field?
- Evenglare
- · Replies 1 ·
What Is the Net Force on a Submarine Hatch at 8.5m Depth?
- queen2008
- · Replies 1 ·
What is the dependence on w of intensity in single slit diffraction?
- neelakash
- · Replies 6 ·
Understanding Potential Reflections and Transmissions with Diagrams
- splitringtail
- · Replies 5 ·
Solving Potential Homework: 6 Eqns, 6 Unknwns & 7 Eqns, 7 Unknwns
- splitringtail
- · Replies 1 ·
Solved Faraday's Law Problem: Find Correct Answer
- neelakash
- · Replies 5 ·
How Do You Calculate the Potential Inside and Outside a Spherical Surface?
- stunner5000pt
- · Replies 2 ·
Can Free Particle Scattering Be Simplified Using Sine and Cosine Functions?
- splitringtail
- · Replies 1 ·
Why Does Time Remain Constant on Any Chord in Galileo's Circle?
- dinkadink
- · Replies 2 ·
Understanding Feynman Rules for ABC Theory
- ercagpince
- · Replies 7 ·
How can one prove that the maximum entropy occurs
- ehrenfest
- · Replies 3 ·
Time evolution of spherical harmonics
- misterme09
- · Replies 3 ·
Exercise 8.15: Spin One-Half Particle | Mike F's Phys 4241
- ehrenfest
- · Replies 1 ·
Kinetic energy of harmonic oscilator
- stunner5000pt
- · Replies 2 ·
Damped Pendulum, finding Q factor
- m0nk3y
- · Replies 3 ·
Distribution of electrons below the Fermi energy
- taishar
- · Replies 1 ·
Dynamics/Kinematics of Particles Help
- dinkadink
- · Replies 1 ·
How Can I Learn the Basics of the Dirichlet Principle?
- freesom
- · Replies 2 ·
Heisenberg Uncertainty Principle question
- so09er
- · Replies 3 ·
Equilibrium - Particle in Bowl, looking for guidance
- m0nk3y
- · Replies 1 ·
Confusing Friction + Pulley question
- tbomber
- · Replies 1 ·
Deriving Probability Conservation in Quantum Mechanics
- stunner5000pt
- · Replies 1 ·
Stuck on 6.16: Solving for Wavefunctions in Different Regimes
- ehrenfest
- · Replies 6 ·
Can Both Lorentz and Coulomb Gauges Be Satisfied Simultaneously?
- ultimateguy
- · Replies 1 ·
How Does Electrical Conductivity Behave in Non-Uniform Conductors?
- harshant
- · Replies 2 ·
Relativity: Pion decay can someone check my answers please
- lozzyjay
- · Replies 1 ·
Energy Transition in Deuterium vs Hydrogen: Is it True?
- ehrenfest
- · Replies 6 ·
Why massless particles must travel at c
- wtronic
- · Replies 7 ·
What Thickness Makes 0.3 A X-Rays Twice as Intense as 0.5 A X-Rays?
- so09er
- · Replies 2 ·
Why does an object in a hyperbolic orbit get a velocity kick from a planet?
- m0nk3y
- · Replies 3 ·
A pretty difficult problem about oscillatory circuit
- Sciencelad
- · Replies 1 ·
How can we find the variance of S_x, S_y, and S_z?
- man@SUT
- · Replies 1 ·
Solving [L_z,p^2] = 0: Step-by-Step Guide
- bdforbes
- · Replies 11 ·
Electron Spin State and Values
- Rahmuss
- · Replies 4 ·
Expansion in spherical harmonics sin(theta)
- Gerenuk
- · Replies 1 ·
How to Expand 1+sin(phi)sin(theta) in Spherical Harmonics?
- ehrenfest
- · Replies 17 ·
What is the magnetic flux through the solenoid
- captainjack2000
- · Replies 2 ·
Gravitational potential and equilibrium of a thin ring
- DieCommie
- · Replies 2 ·
How to Find Eigenfunction and Kinetic Energy in an Infinite Square Well?
- stunner5000pt
- · Replies 1 ·
Calculating Entropy Change in a Heat Engine Operating at Different Temperatures
- will_lansing
- · Replies 3 ·
Solving the Hydrogen Atom Wavefunction Puzzle
- ehrenfest
- · Replies 12 ·
GR & Time Dilation: Solve Satellite Orbit Problem
- Lorna
- · Replies 3 ·
Apply Normalization condition in QM problem
- ttown
- · Replies 1 ·
How Do You Calculate the Force to Separate Two Hemispheres?
- castusalbuscor
- · Replies 3 ·
Eigenvalues and Eigenspinors: How to find them for the S_y matrix?
- Rahmuss
- · Replies 24 ·
How Do Polaroid Filters Affect Light Perception?
- ziad123
- · Replies 3 ·
Do Free Electrons Have Momentum Zero at Absolute Zero?
- neelakash
- · Replies 4 ·
Find the potential - Long hollow cylinder
- DieCommie
- · Replies 4 ·
What Processes Occur When Electrons Meet Positrons and Protons?
- neelakash
- · Replies 4 ·
Zwiebach Ch 14.2 Homework: Coincident Branes in Figure?
- ehrenfest
- · Replies 1 ·
Rotating, submerged cylinder problem.
- Cinimod
- · Replies 5 ·
Are there legal ways to quickly find eigenvalues of an operator?
- cscott
- · Replies 8 ·
How to Find the Mass Moment of Inertia for an L-Shaped Bar?
- roldy
- · Replies 4 ·
Identical particles and degenrate energy levels
- Sunshine
- · Replies 3 ·
Two-Slit Interference: Find Slit Separation
- rpedroza
- · Replies 1 ·
What Are the Correct Statements About a Quantum Harmonic Oscillator?
- neelakash
- · Replies 1 ·
Sping Matrices and Commutation Relations
- Rahmuss
- · Replies 2 ·
Finding Forces Exerted at A and B on Rod AB
- roldy
- · Replies 1 ·
Zwiebach on Lattices: What Does He Mean?
- ehrenfest
- · Replies 1 ·
Central Orbit Problem: Time Taken at Perihelion Revealed
- neelakash
- · Replies 2 ·
How to find Velocity V2 with bernoulli Equation?
- bakoo
- · Replies 1 ·
What is the Proportionality of Electrostatic Potential at a Distance?
- Reshma
- · Replies 3 ·
Perturbation of the simple harmonic oscillator
- nowits
- · Replies 4 ·
Bucket launched into cloud of star dust.
- deccard
- · Replies 6 ·
Probable distance in the 2p state (H atom)
- T-7
- · Replies 2 ·
Find B at Distance r from Capacitor Symmetry Axis
- hastings
- · Replies 1 ·
How Do Lorentz Transformations Prove Light Pulse Symmetry?
- physicyst
- · Replies 1 ·
How does time dilation work in relativity?
- mlazos
- · Replies 26 ·
How to Show Lorentz's Identity with Relative Speed?
- wtronic
- · Replies 4 ·
Work and heat transferred in ideal engine
- El Hombre Invisible
- · Replies 2 ·