Physics Questions, Problems & Solutions : TransWikia.com ~ Page 584

How to draw all the Electric field vectors associated with an em wave?

This is a single ray of an electromagnetic wave propagating in one dimension. But we know an electromagnetic wave travels in three...

Asked on 02/08/2021

1 answer

Stationary conductor in a time varying magnetic field, emf equation

A question has been asked before, but hasn't got a detailed answer. For a conduction loop in a time varying magnetic field, we get the emf as the rate of...

Asked on 02/08/2021 by ASWIN VENU

0 answer

Minimum mass for primordial black holes

I'm seeing two values for the minimum mass of primordial black holes.$10^{-5}$ g (see 1974 paper by Carr and Hawking) and 1g (see 2004 paper by Carr). Which...

Asked on 02/08/2021 by John O

0 answer

Decomposition of restricted Lorentz transformation matrix

Please can someone give the proof of all restricted Lorentz transformation matrix can uniquely decomposed into product of pure rotation and pure boost? Or at least give some hint how...

Asked on 02/07/2021 by P Rakesh Kumar Dora

1 answer

(How) Can a (group of) molecule(s) be easily influenced to exhibit sustained triaxial rotation in order to observe/test for Dzhanibekov effect?

I've seen an experiment that aligns molecules in a substrate into formation with spin but could such an effect be established incorporating triaxial rotation?At first I was thinking of...

Asked on 02/07/2021 by K H

0 answer

how to get total Fisher matrix that makes cross synthesis of 2 Fisher matrix

I have 2 Fisher matrixes which represent information for the same variables (I mean columns/rows are the same in the 2 matrixes). Now I would like to make the cross...

Asked on 02/07/2021

0 answer

Does the energy comsumption of a microwave depend on the amount of food inside?

I measured the heat absorbed by water in a microwave, and it was about 80% of the max. power of its specifications. But when the amount of water decreases too...

Asked on 02/07/2021

4 answer

$phi^4$-Theory: Sub-Diagram zero $Rightarrow$ Diagram zero?

Considering a bosonic $phi^4$-theory: If I know that a certain connected Feynman diagram has a vanishing contribution. Does this imply that all larger connected diagrams containing this diagram are...

Asked on 02/07/2021

0 answer

Thought experiment and faraday cage

this is my first and second questions. I'll start with my assumptions and go from there to ask my questions. Please do not hesitate to correct me if any of...

Asked on 02/07/2021 by Luc St-pierre

2 answer

Since the pressure's greater on the bottom of you than the top, shouldn't there be a force acting upward on you?

Suppose there's an upright cylinder in the water. The pressure at the bottom's more then the pressure at the top, so shouldn't there be a net force upwards? Does this...

Asked on 02/07/2021 by Bobby Phillips

1 answer

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