Physics Questions, Problems & Solutions : TransWikia.com ~ Page 215

Expression for unpolarized electric field

Suppose we have an electric field $mathbf{E}$ given by $$mathbf{E}(r,t)=(vec{E_1}e^{i mathbf{k}_1 cdot mathbf{r}}+vec{E_2}e^{imathbf{k}_2 cdot mathbf{r}})e^{iomega t}$$ with $c|k_1|=c|k_2|=omega$ Is this electric field unpolarized?...

Asked on 07/03/2021

0 answer

Maximum height for Terminal Velocity to be reached for a certain mass?

I know the terminal velocity equation as: V^2=(2mg)/((CdAp) I also know that v^2 = u^2 + 2as. Assuming the object's terminal velocity is also its final velocity, and knowing every...

Asked on 07/03/2021

2 answer

Why can scalars have a sign?

I wondered to myself why some scalars have a sign, if they do not have a direction. After all, the plus and minus indicate the direction of the scalar on...

Asked on 07/03/2021 by Sipo

5 answer

How can a singularity in a black hole rotate if it's just a point?

I guess nobody really knows the true nature of black holes, however, based on everything I know about black holes, there is a "singularity" at their center, which has finite...

Asked on 07/03/2021 by user42012

4 answer

Charge distribution in series combination of capacitors

its a normal series combination of capacitors,only the inner plates are placed differently,one in the beginning and one in the middle,will...

Asked on 07/03/2021

1 answer

Is the gravitational constant $G$ a fundamental universal constant?

Is the gravitational constant $G$ a fundamental universal constant like Planck constant $h$ and the speed of light $c$?...

Asked on 07/03/2021 by Farhâd

7 answer

Question on spin-orbit interaction in He I

I'm currently learning spin-orbit interaction and running into a problem to calculate the energy splitting in a neutral helium atom. For instance, I want to calculate how much the energy...

Asked on 07/03/2021 by Asoudemort

0 answer

Isn't Velocity of Electric field a violation of law of conservation of energy?

Let take two positive charges $q_1$ and $q_2$.There are four points. $q_1$ was initially located at (a), and $q_2$ was at (d). Distance between (a)...

Asked on 07/03/2021 by Predaking Askboss

1 answer

Movement equation for the Simple harmonic oscillator

According to Wikipedia the only force working on a simple harmonic oscillator when it is extended from its position of rest the force of the oscillator itself.However if we...

Asked on 07/03/2021

3 answer

Two Questions on the nuclear spin

To those who are familiar with nuclear physics, I have two questions of understanding:Why does it happen that nuclei have a spin greater than 1 (e.g. I=8 at 90Nb)?How can...

Asked on 07/03/2021

2 answer

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