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
Calculating Gamma Ray Count Rate Error in 20 secs
- swaha
- · Replies 1 ·
Finding magnon magnetization from dispersion relation
- VortexLattice
- · Replies 3 ·
Superposition of Forces: Finding Magnitude and Direction
- ecsx00
- · Replies 1 ·
Resultant gravitational field strength
- Chicken99
- · Replies 1 ·
How is the Bessel function approximated by a ln function
- sinbaski
- · Replies 11 ·
Flux in Through/ Out of Caps Purcell
- schaefera
- · Replies 7 ·
Calculating the expectation value for a particles energy in a 1_D well
- solas99
- · Replies 10 ·
How Do I Draw a Feynman Diagram for e+e- → VeVe?
- Bowenwww
- · Replies 7 ·
Griffiths, Electrodynamics Prob. 3.28a
- mzh
- · Replies 10 ·
QFT: Solving the integral for the Wightman function in Minkowski spacetime.
- Aimless
- · Replies 5 ·
Electric field at points from a solid copper sphere
- Tui
- · Replies 1 ·
Electric field for non uniform line charge
- Lily@pie
- · Replies 15 ·
Find normalised linear combinations that are orthogonal
- g.lemaitre
- · Replies 14 ·
How to Calculate Bond Strength in a Molecule?
- solas99
- · Replies 4 ·
Finding Threshold Energy for Electrons to Produce Cerenkov Radiation
- blueyellow
- · Replies 5 ·
Finding Weights for Pure States in a Mixed State
- genericusrnme
- · Replies 2 ·
A question on constants and dimensionless equations
- help1please
- · Replies 1 ·
Solving Lagrangian Question: Find p, Lagrange's Eq., v as fn of P and r
- Maybe_Memorie
- · Replies 11 ·
Tried to Normalize this function but
- unscientific
- · Replies 8 ·
What is the primary source for the origin of elements?
- Orion78
- · Replies 1 ·
Expectation value of a finite well, and superposition of first two states.
- solas99
- · Replies 12 ·
Diagonalization of 2D wave equation
- malasti
- · Replies 6 ·
Finding the potential of a charged, solid sphere using the charge density
- LionelHutz
- · Replies 8 ·
Energy momentum tensor for RNS superstring
- physicus
- · Replies 1 ·
Composite Particle Rest Mass Calculation
- zhillyz
- · Replies 1 ·
Electric susceptibility of a gas/solid for the same kind of atoms
- vst98
- · Replies 2 ·
Fluid mechanics: simple calculus issue
- K29
- · Replies 2 ·
Finding σ for quantum harmonic oscillator ground state
- Bowenwww
- · Replies 18 ·
What are the properties of Dirac notation and operators?
- Ronin2004
- · Replies 7 ·
First order perturbation theory problem
- Bowenwww
- · Replies 1 ·
Solving for C1 and C2: A Wave Function Boundary Condition
- zhillyz
- · Replies 3 ·
Sign error in electromagnetic field tensor from four-potential
- Albereo
- · Replies 6 ·
Angular momentum operator acting on |j,m>
- PhyPsy
- · Replies 3 ·
Unproved statement from my textbook
- dEdt
- · Replies 17 ·
Calculating Fermi Level position in doped Silicon
- Benjammith
- · Replies 1 ·
How Can I Create Streamlines in Blood Flow Using Velocity Vectors?
- neochan
- · Replies 2 ·
Is Momentum in Variational Calculus Represented by \(\psi^{\dagger}\beta\psi\)?
- help1please
- · Replies 20 ·
Derive Electrostatic Force from Coulomb's Law.
- jhosamelly
- · Replies 1 ·
How to tell whether a transition state is metastable?
- kratos
- · Replies 1 ·
Are Oscillation Periods in a Quartic Potential Always Equal?
- PhyConnected
- · Replies 8 ·
Is \( i\hat{p} \) Hermitian?
- PineApple2
- · Replies 10 ·
Equation for Charge and Frequency: Q=m\omega
- help1please
- · Replies 3 ·
Ultraviolet catastrophe and quantization
- Puchinita5
- · Replies 5 ·
Calculating Stellar radius from bolometric flux
- lquinnl
- · Replies 13 ·
Prove Hermitian with two different wave functions
- pfollansbee
- · Replies 1 ·
Why Does cos(x)^2 Average to 1/3 Over a Sphere's Solid Angle?
- Zamze
- · Replies 3 ·
Probability density function,normalize and expectation values
- zhillyz
- · Replies 21 ·
Given a plane wave characterized by Ex and By
- zhillyz
- · Replies 9 ·
Find Period of rotation of the copper ring in a Magnetic Field
- Forever_hard
- · Replies 2 ·
How to calculate the energy of the bonding state of a hydrogen molecule?
- Arafat Sagar
- · Replies 1 ·
Does the D'Alembertian have the same dimensions
- help1please
- · Replies 2 ·
Finding E, D and P in a Dielectric Slab
- zhillyz
- · Replies 8 ·
Applying time reversal to the free particle wavefunction
- Hypersquare
- · Replies 3 ·
Where is the Point of Suspension to Keep a Suspended Rod Fixed?
- AbigailM
- · Replies 2 ·
Two masses connected by spring, find x(t) of m1.
- AbigailM
- · Replies 2 ·
Atomic Physics: Quantization axis
- Niles
- · Replies 1 ·
Finding first two Bragg angles for KCl and KBr with Debye-Scherrer method
- derivX
- · Replies 5 ·
Wavefunction and degree of localization
- argonsonic
- · Replies 1 ·
Rigid Body Motion: Determing Angular Momentum Equations
- bradm707
- · Replies 5 ·
FRW energy-momentum tensor components from Killing vectors
- Kamikaze_951
- · Replies 4 ·
What is the orbital period of a satellite in a low-Earth orbit?
- Masschaos
- · Replies 2 ·
Is the Factorization of Product Expectation Values Valid in Steady State?
- Niles
- · Replies 4 ·
Average electron distance (GRE practice problem)
- VantagePoint72
- · Replies 4 ·
How to Determine Current Density in a Spinning Copper Disk in a Magnetic Field?
- Pigkappa
- · Replies 4 ·
Sourcing Feynman quote on photon detection probabilities
- JPBenowitz
- · Replies 3 ·
Calculating how long it takes for a comet to reach a sun of radius zero
- xdrgnh
- · Replies 9 ·
Formulation of orbital kinetic energy
- Woodles
- · Replies 1 ·
Finding the geodesic function for scalar * function= scalar
- metric tensor
- · Replies 1 ·
QM: Master equations and derivatives
- Niles
- · Replies 9 ·
Principal Moment of Inertia-how to calculate?
- cccic
- · Replies 3 ·
Calculating the charge distribution on the surface of an assymetric conductor
- Chitran
- · Replies 4 ·
How Do You Calculate Constant Particle Density in a Star Cluster?
- AbigailM
- · Replies 1 ·
Hamiltonian factoring for the quantum harmonic oscillator
- nymphidius
- · Replies 2 ·
Work-energy theorem for elliptical orbits
- ZedCar
- · Replies 1 ·
Is the Expectation Value Relation for QM Operators Valid?
- Niles
- · Replies 1 ·
How to Determine Neutrino Energy in Pion Decay?
- XCBRA
- · Replies 2 ·
How to Determine Inductance in a Magnetic Circuit with Varying Permeabilities?
- kevinb
- · Replies 2 ·
Calculate the time of the surface of last scattering
- g.lemaitre
- · Replies 8 ·
Relativistic elastic scattering in CM and Breit frames
- yelneerg
- · Replies 2 ·
Plotting amplitude vs driving frequency for coupled oscillators
- ozone
- · Replies 6 ·
Total reluctance in a magnetic core
- kevinb
- · Replies 2 ·
How Can You Simplify General Relativity Equations Without Using Tensors?
- Vardonir
- · Replies 3 ·
Can Bernoulli's Equation Ensure Fish Safety in Dam Designs?
- Shuff
- · Replies 1 ·
What physical system does the Lagrangian L=(x²+y²)ẋ+2xyẏ describe?
- atomqwerty
- · Replies 10 ·
Stirling's approximation for Gamma functions with a negative argument
- L. de Pudo
- · Replies 5 ·
About Green's function in time dependent schrodinger equation
- wphysics
- · Replies 1 ·
[General Relativity] Find the acceleration of an object
- eoghan
- · Replies 11 ·
Cylindrical capacitor with varying dielectric
- brainslush
- · Replies 11 ·
Quantum mechanics: what does d<x>/dt mean physically?
- gennes77
- · Replies 1 ·
Statistical Relationship Between Helmoltz Free Energy and Entropy
- Aero51
- · Replies 1 ·
Harmonic oscillator derivation of wave functions
- jtaa
- · Replies 3 ·
Energy distribution of free particle in 1D and 2D with delta function
- genericusrnme
- · Replies 1 ·
Generalized momentum and Hamiltonian over a non inertial reference frame
- Telemachus
- · Replies 3 ·
Bullet hits a block, penetration depth and velocity
- AbigailM
- · Replies 2 ·
Estimating the average time between collisions (electrons in Cu solid)
- fluidistic
- · Replies 1 ·
Clausius-Clapeyron equation and water
- genericusrnme
- · Replies 2 ·
Typo in Landau mechanics pendulum problem?
- Peeter
- · Replies 2 ·
Relation between commutator, unitary matrix, and hermitian exponential operator
- silverdiesel
- · Replies 1 ·
What does spinor representation or tensor representation mean?
- pellis
- · Replies 5 ·
What are the dimensions of an integral in terms of energy and time?
- help1please
- · Replies 5 ·