User LPZ

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How do I calculate the surface energy density from Fermi's energy?

answered Jun 30, 2023 at 14:02

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What is the expression for current density of a ring in spherical coordinates

answered Jun 27, 2023 at 9:26

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Relation between Force and Potential in a relativistic context

answered Jun 25, 2023 at 18:29

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Finding the Lorentz Velocity for Relativistic Electrodynamics

answered Mar 22, 2023 at 18:18

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Exciting a normal mode of $N$ coupled oscillator with driving force

answered Mar 20, 2023 at 22:27

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Charge distribution on a discharged conductor

answered Mar 18, 2023 at 17:21

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How to interpret Pauli spinors?

answered Mar 18, 2023 at 18:52

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Force moments and angular momentum

answered Mar 17, 2023 at 17:45

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Diagonalizing the tridiagonal matrix for finding the normal mode

answered Mar 16, 2023 at 8:55

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Combining two simple harmonic motion in perpendicular directions

answered Mar 8, 2023 at 14:19

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If an $SU (2)$ isospin transformation converts a proton to a neutron, how does a pion transform under the same transformation?

answered Feb 17, 2023 at 18:03

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Where does the lower limit of the integral for the dynamic phase factor come from?

answered Feb 19, 2023 at 15:16

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Coulomb force from a variational principle

answered Jan 6, 2023 at 17:25

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The (electrostatic) force on an extended object

answered Jan 8, 2023 at 22:08

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Energy Conservation when two permanent magnets attract each other

answered Jan 16, 2023 at 15:27

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The intepretation of $d$ in $p=qd$

answered Jan 26, 2023 at 9:16

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How can an unknown Hamiltonian be solved for in an ODE?

answered Feb 14, 2023 at 10:34

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Can heat flow from colder to hotter body breaking the second law of thermodynamics?

answered May 24, 2023 at 10:07

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Maximum $B$-field at the surface of a permanent magnet

answered Apr 29, 2022 at 7:39

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What happen in calculate $ (\boldsymbol{\sigma} \cdot \boldsymbol{J}) (\boldsymbol{\sigma} \cdot \boldsymbol{J} - 1) $?

answered Nov 8 at 13:41

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Why is the electric field time independent in the induction equation of the magnetohydrodynamics?

answered Oct 2, 2023 at 7:39

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What would happen if I swirl a bottle of water in the space station?

answered Jan 2 at 23:34

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592 Answers

How do I calculate the surface energy density from Fermi's energy?

What is the expression for current density of a ring in spherical coordinates

Relation between Force and Potential in a relativistic context

Finding the Lorentz Velocity for Relativistic Electrodynamics

Exciting a normal mode of $N$ coupled oscillator with driving force

Charge distribution on a discharged conductor

How to interpret Pauli spinors?

Force moments and angular momentum

Diagonalizing the tridiagonal matrix for finding the normal mode

Combining two simple harmonic motion in perpendicular directions

If an $SU (2)$ isospin transformation converts a proton to a neutron, how does a pion transform under the same transformation?

Where does the lower limit of the integral for the dynamic phase factor come from?

Coulomb force from a variational principle

The (electrostatic) force on an extended object

Energy Conservation when two permanent magnets attract each other

The intepretation of $d$ in $p=qd$

How can an unknown Hamiltonian be solved for in an ODE?

Can heat flow from colder to hotter body breaking the second law of thermodynamics?

Maximum $B$-field at the surface of a permanent magnet

What happen in calculate $ (\boldsymbol{\sigma} \cdot \boldsymbol{J}) (\boldsymbol{\sigma} \cdot \boldsymbol{J} - 1) $?

Why is the electric field time independent in the induction equation of the magnetohydrodynamics?

What would happen if I swirl a bottle of water in the space station?