Advanced Physics Homework Help Forum

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Free advanced physics homework help via qualified mentors. Upper undergraduate and graduate level. Please use the template when requesting help and show your work.
How determine that a matrix is a tensor?
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Comoving Distance in LCDM - Understanding an Approximation
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Why heat PDE solution does not fully satisfy initial conditions?
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7
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974
Infinite square well centered at the origin
2
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Donor and Acceptor Concentrations in a Si speciment
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460
Total Josephson current through junction with magnetic field
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Hund's Rule for Determining Term Symbol Energy Order
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711
Does anyone know which are Ricci and Riemann Tensors of FRW metric?
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How do I normalize a wavefunction with Cn instead of Ci and Cj?
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Lagrangian with a charged, massive vector boson coupled to electromagnetism
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The magnetic phase change of an electromagnetic wave during reflection
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776
Need of Tangle calculation using code and Numerically
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490
What is the Relationship Between Concurrence and Three Tangle in Quantum States?
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State space controllers - find equations from differentials
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Hermiticity of AB where A and B are Hermitian operator?
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Calculate Earth's escape velocity using different methods
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Spectral Intensity Formula by Using Frequency
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Landau Energy Spectrum in the non-relativistic limit
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718
Solving Freidman Equation on MATLAB
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949
A wheel rolls down a flat inclined surface
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Finding Total Number of Optical Field Modes for Visible Light
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Proof of Schrodinger equation solution persisting in time
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5
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986
Position expectation value of 2D harmonic oscillator in magnetic field
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704
Edge States in Integer Quantum Hall Effect (IQHE)
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641
Calculate Conductivity Temperature Dependence in Semiconductors
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1
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655
Quantum Harmonic Oscillator with Additional Potential
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2K
Spin matrix representation in any arbitrary direction
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16
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Commutation relations between Ladder operators and Spherical Harmonics
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6
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Radial oscillations of a star
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4
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Exploring Electric Field Boundaries at a Charge Density Boundary
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Computing the infinitesimal generators for the Mobius transformation
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872
Green's reciprocity theorem about current density and magnetic field
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819
Nuclear rotor model wave function
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Coding of Spin Spin correlation function
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I with my quantum magnetism paper
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6
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Show that ##B = \nabla \times A = 0## using Ampere-Maxwell law
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23
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Length of spin vector for spin-½ particle
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1K
Question regarding a decay spectrum graph
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2
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880
Lagrangian of a double pendulum, finding kinetic energy
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3
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2K
Deriving the Solution to $$\frac{\partial}{\partial \phi^{*}}$$
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2
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938
Diagonalizing q1ˆ3q2ˆ3 with Degenerate Perturbation Theory
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1
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801
Pulsed Nuclear Magnetic Resonance
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1
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841
Expectation Values <E> and <E^2>
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Exploring Nuclear Quadrupole Moment and Deformation
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6
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Help with this Commutator question please
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16
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Renormalization Group:NiemeijerVan Leeuwen Method-Ising Square Lattice
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524
How to tell if Energy is Conserved from the Lagrangian?
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Deriving Wave Function: Confused about (ix/a) & (-x^2/2a)?
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4
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A question on the definition of the curl of a vector
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9
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Finding Lorentz acceleration transformation for arbitrary direction
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2
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Showing that the gradient of a scalar field is a covariant vector
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What would be the Wigner-Seitz cell of this lattice?
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762
Relativistic correction to Coulomb Potential in SQED
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861
Cancellation of terms, Kittel (first edition) equation 6.4
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5
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Calculating the half-life of decays of Radium-224
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5
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5K
MTW Ex 21.15 - Curvature independent of Lapse and Shift functions
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1
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564
How is the Power Spectrum of Matter Density Field Defined?
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How to find integrals of motion for a particle on a surface?
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Derivation of Boltzmann Factor via Reservoir Method (canonical ensemble)
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Scattered State Solutions of a Repulsive Dirac Delta Potential
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1
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Finding all possible energy states faster without using a calculator
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3
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Confused about the nature of Laplace vs Poisson equation in BVP
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11
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How to prove ##V_{ai;j}=V_{aj;i}## in curved space using the given equation?
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3
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Fresnel diffraction from square: on axis intensity
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2
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912
Watt Rotational Speed Regulator's Lagrangian
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6
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How to determine the minimum grid length | Numerical Plasma Physics
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7
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Understanding Exponential Terms in Quantum Mechanics Problem
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8
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Capacitance of infinitely long coaxial cylinders of elliptical section
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5
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Notation clarification: SU(N) group integration
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Calculation of the Berry connection for a 2x2 Hamiltonian
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1
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Converting an expression of a particular k-mode to the spatial domain
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1
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691
Particle in a changed box
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Potential of a charged ring in terms of Legendre polynomials
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16
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What is the function to extremise for finding geodesics on a Helicoid?
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3
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Total Momentum Operator for Klein Gordon Field
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16
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Michelson Interferometer with a lens
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1
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848
Fourier transform radial component of magnetic field
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5
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Help with variation of the 3-dimensional ##\sigma##-model action
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980
Diagonalizing of Hamiltonian of electron and positron system
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Why must the second term on the right-hand side vanish in string theory?
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3
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Understanding Powder Behavior under Centrifugal Force
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6
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Statistical physics, using the ideas of Fermi Energies, etc. for a star
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1
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964
Dependence of the stress vector on surface orientation
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4
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Discretizing a 1D quantum harmonic oscillator, finding eigenvalues
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5
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Calculating Amplitude in Standard Model
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678
Perturbation Theory: Calculating 1st-Order Correction
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3
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Confirming the dimension of induced charge density of a dielectric
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2
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905
Exploring Spin Magnetization in Non-Ideal Systems
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825
Feynman rules and the tree level cross section of two scalar fields
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6
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Using Variational Principle to solve ground state energy
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3
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962
Particle in a box: Finding <T> of an electron given a wave function
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9
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Help with a calculation about gravitational waves
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1
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964
Schwarzchild metric - rescaled coordinates
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1
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Vector calculus — Computing this Divergence
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10
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Time dependent perturbation theory (Berry phase)
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1
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Bethe formula dependence on charge of the material
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1
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846
Finding transition temperature of Landau ferroelectric
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1
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790
Mass conservation in a sphere to find radial velocity of a flame
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2
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Show that an expected value of a vacuum state is equal to 1
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2
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Delta function to calculate density of probablity
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Advanced Physics Homework Help

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