TransWikia.com
  1. All Categories
  2. Physics

Physics : Recent Questions and Answers (Page 623)

Find answers to your questions about Physics or help others by answering their Physics questions.

Separation of Variables for Laplace's Equation in Spherical Coordinates

When one solves Laplace's equation for charge distributed on a spherical surface: $nabla^2V = 0 $ in spherical coordinates, one can obtain a solution that is a sum of...

Asked on 01/25/2021 by Rixcrix

0 answer

Train speed and closed windows

Most coaches in Indian trains are non-air-conditioned, i.e., the windows can be opened. Recently, the government has planned to convert all coaches in some trains to A.C., citing the fact...

Asked on 01/25/2021 by rivu

1 answer

Proper definition of Berry curvature

I see at least two different definitions of Berry curvature in literature. One is given at Wikipedia$$Omega_n = isum_{nne n'}frac{ langle n|partial_{k_x} H|n'rangle langle...

Asked on 01/25/2021

1 answer

Conformal weights in Laurent expansions

Currently I am taking an introductory class in conformal field theory and ran into some confusion. Everywhere I run into Laurent expansions of several important quantities, and (mostly) all of...

Asked on 01/25/2021 by Wwhite

3 answer

Is this book correct?

I'm currently reading this book on flight dynamics but I'm having some trouble getting my head around the way the author derives some equations of motion. He starts by showing...

Asked on 01/25/2021 by José Alfredo Rosas Córdova

1 answer

Describing the motion of a mass in a pendulum with an additional constant upwards force

If I have a mass on a string that follows SHM and I add a constant force in the upwards y-direction to the mass, how does its period change? We...

Asked on 01/25/2021

2 answer

Generalised Lorentz force expression from Classical Mechanics by Goldstein

I am reading chapter 7 in the 3rd edition of Goldstein's Classical mechanics textbook and the expression for the Lorentz force is confusing me. I cannot scan it so I...

Asked on 01/25/2021 by Kristian Stokkereit

1 answer

On Unitary Equivalent Observables

In J.J. Sakurai's Modern Quantum Mechanics, he introduces the concept of 'Unitary Equivalent Observables'. If $|a^{'}rangle$ and $|b^{'}rangle$ are the orthonormal bases eigenkets of two non-commuting hermitian operators...

Asked on 01/25/2021

1 answer

Energy dissipation in current flow

In section 4.8, Energy dissipation in current flow, of Purcell and Morin's Electricity in Magnetism, the expression for the power expended by a resistor is derived. The sections includes the...

Asked on 01/25/2021 by Junaid Aftab

1 answer

Nonsensical dispersion relations for elastic wave propagation

In an earlier question about Einstein notation, a link was provided to a medical paper which used acoustic propagation to noninvasively detect the orientation of muscle...

Asked on 01/25/2021 by DumpsterDoofus

1 answer

Ask a Question

Get help from others!

© 2024 TransWikia.com. All rights reserved. Sites we Love: PCI Database, UKBizDB, Menu Kuliner, Sharing RPP