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Physics : Recent Questions and Answers (Page 507)

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

Can mycelles of soap form without grease/oil in the middle?

Does soap form mycelles even if there is no grease in the water, like the image below? (Is it even possible to form mycelles without grease/oil in the middle)? ...

Asked on 03/07/2021

1 answer

Why does the sound of my tea stirring go up in tone the faster I stir?

I've noticed that when stirring my tea, as I stir faster the tone generated by the stirring goes up. Why is that? Is it something to do with the Doppler...

Asked on 03/07/2021 by And Finally

3 answer

Can strings exist along time in spacetime (aka. target space)?

I have had this question for quite some time:As I understand it, in string theory there is tension along the strings such that this tension is between different elements...

Asked on 03/07/2021 by PrawwarP

1 answer

In a dynamo, how does current have enough time to flow through the wire if, in no time, it changes direction?

I had a lot of problems imaging the current in an AC generator. I fully understand the principal of it and how it depends on a magnetic field repeatedly cutting...

Asked on 03/07/2021

1 answer

Is the difference between the pressures of real gas and ideal gas at the same conditions equal to the latent heat of volume change?

The "real gases" term in the title refers to gases with intermolecular attractive forces. Such gases necessarily have lower pressures than ideal gases at the same temperature $T$ and...

Asked on 03/07/2021

0 answer

Do stellar black hole precess like Earth do?

The precession of Earth caused by the Sun and Moon pull like when you breathe super hard on a spinning top, what about massive blackhole which is a point in...

Asked on 03/07/2021

1 answer

Harmonic motion: displacement

On my textbook the displacement in a simple harmonic motion is given as $$x = x(t)= A cos(omega t) tag 1$$ It is true that $$x = x(t)=...

Asked on 03/07/2021

2 answer

Explain the direction of waves on sea shore

Why do waves on the seashore move towards the shore even when the tide is going out?...

Asked on 03/07/2021 by storabjorn

2 answer

What is the complete set of parameters that describes a photon in free 3D space?

I'm trying to understand what parameters uniquely define the state of a photon, and I can't seem to find a straightforward reference anywhere. Wikipedia is either unclear here, or over...

Asked on 03/07/2021 by antiduh

1 answer

How come we can grow nanowires? Semiconductors

I'm not a physicist by background but I'm interested in semiconductors and am trying to understand third generation semiconductor material technology. In some of the roadmaps for the 2nm and...

Asked on 03/07/2021 by Kya

1 answer

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