TransWikia.com
  1. All Categories
  2. Physics

Physics : Recent Questions and Answers (Page 511)

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

How is the External Field Effect in MOND conceptually distinct from Newtonian gravity and GR?

I’m trying to understand the External Field Effect (EFE) in Modified Newtonian Dynamics (MOND) and how it is conceptually distinct from GR and Newtonian gravity. More specifically, the descriptions I...

Asked on 03/06/2021 by Astroturf

2 answer

Varignon's theorem (Principle of moments) failure?

Varignon's theorem states that "If many coplanar forces are acting on a body, then the algebraic sum of torques of all the forces about a point in...

Asked on 03/05/2021 by yathish

2 answer

Is nematic ordering time-reversal invariant?

I am confused about the definition of nematic order in crystals. In this paper https://www.nature.com/articles/nmat4138, they say that nematic order is "a lowering of the rotational symmetry...

Asked on 03/05/2021 by user165990

1 answer

Inflating a balloon (expansion resistance)

I am doing a quick calculation on how to calculate the pressure needed to inflate a perfectly spherical balloon to a certain volume, however I have difficulties with the fact...

Asked on 03/05/2021 by avanwieringen

3 answer

Optimal control of a damped harmonic oscillator through a lossy, dispersive medium

Say a damped harmonic oscillator is at the far end of a dispersive, lossy medium governed by, say, Debye relaxation. I would like to determine what the optimal arbitrary input...

Asked on 03/05/2021 by 0xDBFB7

0 answer

Prerequisites for getting into Celestial Mechanics?

I have developed an interest in Celestial Mechanics. My math is weak but I'm determined to learn the math and physics required to understand it. I would like to know...

Asked on 03/05/2021 by O S

0 answer

Which and how explicit $W$ current involved process violates CP? (given we knew the fact CKM matrix complex angle violates the CP)

We know that the 3 generations of quarks have a 3 by 3 CKM matrix which contains a complex angle that cannot be rotated away. And this CKM matrix complex...

Asked on 03/05/2021

0 answer

Amplitude of quark$+$antiquark $rightarrow$ ghost$+$antighost in QCD

Since the BRST charge operator commutes with the Hamiltonian of QCD, a physical state such as $q+bar q$ should not be allowed to evolve into an unphysical one like...

Asked on 03/05/2021 by Emmy

1 answer

Essential self-adjointness

I'm reading "Quantum Physics" by Glimm & Jaffe. I came along a paragraph (or rather a footnote) that I want to understand better: ...

Asked on 03/05/2021

1 answer

Can lightning bend metal?

If lightning strikes a metal pole, will it bend because of the force exerted by Earth's magnetic field on the current? ...

Asked on 03/05/2021

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