TransWikia.com
  1. All Categories
  2. Physics

Physics : Recent Questions and Answers (Page 181)

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

First-order EM Feynman diagram?

Is there any 1st order electromagnetic Feynman diagram? I.e. a process whose probability is just $propto alpha_{EM}$? If not, is there any physical reason why? We always need at least...

Asked on 07/17/2021

2 answer

Will a different force act on particles with the exact same charge but different masses in a magnetic field?

So here is the condition. There are 3 charged particles, all three of them have the same charge, but they have different masses and all of them are moving with...

Asked on 07/17/2021 by Rahul Maurya

3 answer

How is change possible only in one of two deterministic, parallel unviverses?

Complete noob here. I'm reading a book called "The Beginning of Infinity" by David Deutsch, and he describes an experiment in which two identical universes in multiverse suddenly become different....

Asked on 07/17/2021 by iiskakov

0 answer

How can I quantify the "temperature" of a system that is still evolving?

My system is a bunch of charged particles in a 1 dimensional harmonic potential. This is a computer simulation, and what I get is a list of the positions and...

Asked on 07/17/2021

2 answer

What is the linear momentum of a rotating body?

Let's say that a three dimensional object with continuous mass distribution is undergoing rotational motion about an axis that lies on the centre of mass. The translational velocity of the...

Asked on 07/17/2021

3 answer

Moment of inertia of a disc with masses attached at the rim

Does the moment of inertia of a disc with some masses attached at the rim be the same as one without the attached masses?Or is it necessary to use...

Asked on 07/17/2021 by user34304

1 answer

What would happen to the universe if dark energy started "disappearing"?

Terribly naive question, I know. Obviously, not simply "disappearing", but if it could, theoretically, be absorbed or "used" somehow, what would happen to the universe? Would it stop expanding, would...

Asked on 07/17/2021 by Tamale Fox

1 answer

Understanding the Viscous Sublayer in Turbulent Flow

I'm slightly confused at how/why the viscous sublayer forms in a turbulent boundary layer. From what I understand, the boundary layer is a region where there is momentum transport through...

Asked on 07/17/2021

0 answer

Can Galilean transformation be derived from length invariance?

Given length invariance in Euclidean 3D space between two inertial frames:$$ds^2=ds'^2$$Can Galilean transformation be derived like Lorentz transformation derived from space-time interval invariance?...

Asked on 07/17/2021 by rioiong

2 answer

How to use Ampère's law in this problem?

I want to prove that the magnetic field inside a cylindrical cavity in a long, cylindrical conductor carrying uniformly distributed current i and having radius R is uniform. The radius...

Asked on 07/16/2021 by user432

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