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Physics : Recent Questions and Answers (Page 153)

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

Pressure difference between two points on the Earth's surface

I'd like to find the pressure difference between two points $X$ and $Y$ on the Earth's surface given that wind blows steadily with speed $U$ from (say)...

Asked on 07/28/2021

1 answer

Why did my liquid soda freeze once I pulled it out of the fridge and opened it?

This isn't a duplicate to "Why did my liquid soda freeze once I pulled it out of the fridge?". My question is why soda froze after it was opened....

Asked on 07/28/2021 by xpda

4 answer

Why does ice gloat up to the top after staying at the bottom for a while in soda

I noticed this recently when I pour myself a glass of soda and I want to know why this is. When I pour in the soda sometimes the ice will...

Asked on 07/28/2021 by Rome Drori

1 answer

Shifting magnetic field axis

Considering the image below, I have magnetometer readings while my magnetometer is oriented along x' and y'. Can I convert these readings to get the equivalent reading if my magnetometer...

Asked on 07/28/2021 by Saharsh Bansal

2 answer

Formula in Theory of Complex Spectra. II of Giulio Racah

In this article Theory of Complex Spectra II Giulio Racah defines $f(m_{1} m_{2} ; jm)$ bybegin{multline}left(m_{1} m_{2} mid j mright)=(-1)^{j_{1}-m_{1}} fleft(m_{1} m_{2}...

Asked on 07/28/2021

1 answer

Prospects for detection of gravitons?

With the announcement of the detection of gravitational waves, questions about the implications proliferate. Some relate to the possible existence of gravitons. The analogous relationship between gravitons/gravitational waves...

Asked on 07/28/2021 by Lewis Miller

3 answer

Uncertainty for maximum (peak)

I have to find $theta$s for which we get maximum values for this plot: Let's take the first peak....

Asked on 07/28/2021

1 answer

Regular black hole with an evanescent horizon

I'm reading a great paper named Geodesically Complete Black Holes by R. Carballo, F. Filippo, S. Liberati and M. Visser about regular black holes and I'm trying...

Asked on 07/28/2021 by Syr O.

0 answer

Would a gauss rifle based on generated magnetic fields have any kickback?

In the case of currently developing Gauss rifles, in which a slug is pulled down a line of electromagnets, facilitated by a micro-controller to achieve great speed in managing...

Asked on 07/28/2021 by sarge_smith

3 answer

Spectrometer design

I am looking to design a compact spectrometer based on using one single concave grating as both the dispersive optic and the imaging optic. I am investigating these gratings:https://www.edmundoptics.com/f/zeiss-concave-diffraction-gratings/39624/I...

Asked on 07/28/2021 by Jordan Gallacher

0 answer

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