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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When calculating Reynolds number, when do I use dynamic/kinetic viscos
- PhyIsOhSoHard
- · Replies 1 ·
Trial-and-Error with thermodynamics tables
- ShizukaSm
- · Replies 1 ·
An infinite square well problem
- quasi-static
- · Replies 5 ·
Decrease in pressure due to adiabatic expansion derivation?
- monnapomona
- · Replies 9 ·
Find the wave function of a Gaussian wave packet
- serverxeon
- · Replies 4 ·
Why does light enter the second medium during total internal reflection?
- arash1r
- · Replies 1 ·
<p> Operator on Probability Density in X-Space
- Legaldose
- · Replies 4 ·
Divergence/flux of an E field for two spherical regions
- Hakkinen
- · Replies 4 ·
How do I normalize the wave function Are^{-r/\alpha} from r=0 to r=\infty?
- Hertz
- · Replies 12 ·
Kinetic Energy in terms of Conjugate Momenta
- MisterX
- · Replies 1 ·
Find Energies Bound States Potential Well: Time Independent SE
- classical_phys
- · Replies 4 ·
What is the Threshold Energy of a Proton Beam to Produce 100 GeV Pions?
- Kyrios
- · Replies 2 ·
Which Potential V(x) Matches the Given Eigenfunction Ψ(x)?
- k3r0
- · Replies 4 ·
Commutation relations between P and L
- CAF123
- · Replies 2 ·
Vector potential due to sudden burst of current in a wire
- Aziza
- · Replies 1 ·
Maximum and Minimum Kinetic Energies following decay
- paodealho
- · Replies 2 ·
How do I find this expectation value?
- Kyrios
- · Replies 10 ·
How Does the Casimir Effect Utilize the Euler-Maclaurin Formula?
- epislon58
- · Replies 5 ·
Mechanics questions from Oxford Physics entrance exam.
- Mr.A.Gibson
- · Replies 4 ·
How Do You Calculate Degeneracy in a 2D Particle in a Box?
- HAMJOOP
- · Replies 1 ·
Why Is There No Solution to Harmonic Oscillator With Given Conditions?
- Dustinsfl
- · Replies 9 ·
Generalized Green function of harmonic oscillator
- Dustinsfl
- · Replies 2 ·
How to calculate angular momentum per second for a photon?
- Ishida52134
- · Replies 1 ·
Water in a piston-cylinder device losing heat
- ShizukaSm
- · Replies 4 ·
Resistance in a Medium Between 2 Spheres
- mindarson
- · Replies 1 ·
Lagrangian where time is a dependent coordinate
- dipole
- · Replies 1 ·
Fitting Sellmeier coefficients using least-squares method
- yo56
- · Replies 1 ·
How Does the Multiplicity of a Classical Gas Relate to Ideal Gas Conditions?
- S_Flaherty
- · Replies 1 ·
Proving equivalence of two statements of the second law
- Raz91
- · Replies 1 ·
Oscillation of a Bose Einstein condensate in an harmonic trap
- SuperPhysicist
- · Replies 5 ·
Potential at center of polyhedron = average of potential on surface
- camron_m21
- · Replies 1 ·
Finding momentum distribution for particle in square well
- perishingtardi
- · Replies 2 ·
Calculating Accretion Rate and Luminosity of Black Holes
- bowlbase
- · Replies 8 ·
Finding a constant of proportionality from a mass luminosity relation
- ppy
- · Replies 10 ·
Reducing angular Schrodinger equation to eigenvalue problem
- perishingtardi
- · Replies 1 ·
Which Molecules Are Suitable for Purely Rotational Spectroscopy?
- adiabatman
- · Replies 3 ·
Which statements about the harmonic oscillator model are true?
- adiabatman
- · Replies 1 ·
Calculate the velocity of electron flying through electric field
- skrat
- · Replies 7 ·
Why TE and TM modes have different spatial dependence in rectangular waveguides
- Kidphysics
- · Replies 1 ·
Proving a thermodynamic relation with pressure, temperature and internal energy
- hasibme2k
- · Replies 4 ·
What Is the Transition Amplitude for an Infinite Square Well?
- jbay9009
- · Replies 1 ·
How Does Particle Energy Affect Wave Functions Across a Potential Step?
- omiros
- · Replies 1 ·
Need a refresher on finding probabilities of a wave function.
- mateomy
- · Replies 4 ·
How Do You Determine the Correct Wave Function in a Quantum Square Well?
- serverxeon
- · Replies 5 ·
What Is the Luminosity of Emitted Radiation from a Black Hole Accreting Mass?
- bowlbase
- · Replies 4 ·
Pauli matrices and the Levi-Civita tensor : commutation relations
- Dixanadu
- · Replies 2 ·
Proving properties of the Levi-Civita tensor
- Dixanadu
- · Replies 3 ·
Why is reflection coefficient squared for intensity with n=1.5?
- Silversonic
- · Replies 14 ·
Can Absolute Entropy Be Calculated Directly from State Variables?
- Urmi Roy
- · Replies 8 ·
How Can Hermitian Operators Prove Key Quantum Mechanics Equations?
- Raz91
- · Replies 7 ·
Prove 4 Vectors: Last Hope for Finding an Answer
- M. next
- · Replies 6 ·
When to use lorentz transformations vs time dilation?
- channel1
- · Replies 6 ·
Period of Harmonic Oscillator using Numerical Methods
- Collisionman
- · Replies 18 ·
Solve Cosmology Problem: Max Possible # of Stars in Universe
- roam
- · Replies 6 ·
Zeeman effect: when to use J and F ranges vs single values
- Higgy
- · Replies 2 ·
Special Relativity: Angles in different Inertial Systems
- Guybrush
- · Replies 3 ·
Finding normalized eigenfunctions of a linear operator in Matrix QM
- Dixanadu
- · Replies 4 ·
Classical mechanics: orbits, force, potential
- rmfw
- · Replies 10 ·
Expectation value of an operator in matrix quantum mechanics
- Dixanadu
- · Replies 2 ·
Standard model + symmetry questions
- aoner
- · Replies 4 ·
Phase shift of reflected EM wave in conductive material
- E92M3
- · Replies 1 ·
Proving a property of the dirac delta function
- skate_nerd
- · Replies 9 ·
Normalising a wave function to dirac's delta
- ffia
- · Replies 1 ·
Expressing plane wave as superposition
- Ishida52134
- · Replies 3 ·
How Do You Find \left\langle\psi|a_1\right\rangle in Matrix Representation?
- richyw
- · Replies 2 ·
How Are Generating Functions Used in Physics?
- darida
- · Replies 3 ·
Finding the equation of the adiabats.
- mateomy
- · Replies 1 ·
Flow around a cylinder - potential theory/Fluid mechanics
- Nikitin
- · Replies 6 ·
Peak impact force of a falling object
- Cornish30
- · Replies 2 ·
Quantum Harmonic Oscillator
- Astrum
- · Replies 8 ·
Deriving fermat's principle of least time (lagrangian stuff)
- iScience
- · Replies 6 ·
Work, energy stored in solid sphere
- mathnerd15
- · Replies 3 ·
How Does Relativistic Force Affect the Movement and Speed of a Mass?
- six7th
- · Replies 5 ·
Can a Specific Width Parameter Ensure a Bound State in a 1D Quantum System?
- CAF123
- · Replies 7 ·
What is a Possible Normalized Spin Wave Function?
- bmb2009
- · Replies 1 ·
What is the heat current in rod 1 and how can it be calculated?
- jackson1984
- · Replies 1 ·
Potential, field, Laplacian and Spherical Coordinates
- AdkinsJr
- · Replies 3 ·
Carnot Cycle Refrigerator - Thermal Battery Problem
- Kelsi_Jade
- · Replies 10 ·
Finding The Position of A Mass As A Function of Time
- embphysics
- · Replies 7 ·
Thermal stress questiontopic strengths of materials
- gunta
- · Replies 9 ·
Calculate Displacement Current from Electric Flux Density
- JustStudying
- · Replies 2 ·
Why is the Kinetic Energy Equation Different in Polar Coordinates?
- iScience
- · Replies 14 ·
Finding potential given some conditions
- CAF123
- · Replies 3 ·
How Does de Broglie Wavelength Affect Particle Behavior in Helium Gas?
- mateomy
- · Replies 3 ·
Why Do 4s Orbitals Fill Before 3d as Atomic Number Increases?
- Habeebe
- · Replies 3 ·
Deriving Rutherford Scattering Angle
- Emspak
- · Replies 1 ·
Converting effective potential to dimensionless function
- Emspak
- · Replies 5 ·
Checking my work on a conservation of energy problem
- Emspak
- · Replies 3 ·
Finding the Potential Energy Function
- embphysics
- · Replies 7 ·
Determining ω_p for a certain state?
- mgcornea
- · Replies 1 ·
Line of sight through randomly spaced trees in a forest
- mpn17
- · Replies 1 ·
Expectation values with annihilation/creation operators
- QuarksAbove
- · Replies 1 ·
Eletric potential inside charged sphere with hole inside
- rmfw
- · Replies 4 ·
Volleyball Impulse and momentum problem
- bchat112000
- · Replies 1 ·
A point charge Q is located on axis.Find flux
- mentalguy
- · Replies 2 ·
Commutators of SHO ladder operators with composite operators
- Hakkinen
- · Replies 1 ·
Modified Quantum Harmonic Oscillator
- Gabriel Maia
- · Replies 2 ·
Finding quantum number n of molecule
- leroyjenkens
- · Replies 1 ·
Beam of particles in momentum space
- Habeebe
- · Replies 1 ·
Four vectors and lorentz transformations
- smallgirl
- · Replies 20 ·