TransWikia.com
  1. All Categories
  2. Physics

Physics : Recent Questions and Answers (Page 162)

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

Is radial velocity parallel to radius of curvature or the position vector?

I'm a bit confused regarding the directions of velocities and acceleration in curvilinear motion. Assume a curvilinear motion, which is not circular. I know that tangential component of velocity and...

Asked on 07/25/2021

1 answer

Validity of Boltzmanns Equation and $H$-function theorem?

A while ago I came across a resource (which I have forgotten) on the validity of Boltzmann's equation. It talked about the fact that the Boltzmann's equation is valid at...

Asked on 07/25/2021

1 answer

Construction of Carter-Penrose diagram for DeSitter spacetime

The DeSitter spacetime line element in global coordinates is given by $$ds^2 = -dt^2 + frac{1}{H^2}cosh^2(Ht)left(dchi^2 + sin^2(chi)(dtheta^2 + sin^2(theta)dphi^2 right).$$ The ranges of the coordinates are given by...

Asked on 07/25/2021

1 answer

What does happen if I push a piston in an adiabatic cylinder containing an ideal gas?

What does happen if I push a piston in an adiabatic cylinder containing an ideal gas? According to Ideal Gas Equation: $$PV=nRT$$ Is it possible to predict what's going to...

Asked on 07/25/2021

3 answer

Does it take more energy to transmit electricity uphill?

And if so, how much energy would have to be expended before you could possibly measure the loss (since gravity is very weak)? Let's say the load is 1000m above...

Asked on 07/24/2021 by yincrash

4 answer

Coinciding values of Temperature scales

In platinum resistance thermometers, the resistance varies slowly at lower temperatures and rapidly at high temperatures. Similarly, the expansion of mercury isn't uniform either. So the readings of mercury thermometers...

Asked on 07/24/2021

0 answer

Work done by friction on an inclined plane

A rough inclined plane is placed on a cart moving with a constant velocity u on horizontal ground. A block of mass M rests on the incline. Is any work...

Asked on 07/24/2021 by may

2 answer

Using Planetary Motion Laws to relate to elliptic motion

I was reading something to do with elliptic motion and I came across using the equation of orbital velocity to determine the centripetal force acting on a body. So for...

Asked on 07/24/2021

0 answer

Interpretation of QED as a $U(1)$ gauge theory

Forgive me if what I’m asking is too naive for this site. I'm a math student who is recently studying electrodynamics and gauge theory myself. While I'm aware of the...

Asked on 07/24/2021

1 answer

How does "warp drive" not violate Special Relativity causality constraints?

I'm talking about this nonsense: http://www.washingtonpost.com/news/post-nation/wp/2014/06/11/this-is-the-amazing-design-for-nasas-star-trek-style-space-ship-the-ixs-enterprise/ Now, I'm aware that there are problems with the practicalities (or possibilities) of methods involving exotic matter with negative mass, and that...

Asked on 07/24/2021 by Larry Gritz

7 answer

Ask a Question

Get help from others!

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