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Physics : Recent Questions and Answers (Page 771)

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

Potential difference in a non-uniform electric field

Let's say I have two points in a non-uniform electric field and those points have the electric potential 10 V and 5 V. If I then would use a voltmeter...

Asked on 12/03/2020 by Ali Bakly MBGY

2 answer

Solving the $CP^N$ model in large $N$ limit

I have trouble filling in the essential step of solving the $CP^N$ model in large $N$ limit, described on Page 84 to 86 of Michael Dine's Supersymmetry and String Theory....

Asked on 12/03/2020 by JamieBondi

1 answer

Converting from magnetic scalar potential to magnetic vector potential

Suppose that I have a situation where I can use the magnetic scalar potential. Given the magnetic scalar potential, is there a simple way to calculate the magnetic vector potential...

Asked on 12/03/2020 by lnmaurer

1 answer

How fast did the interior of Venus warm up?

Context: The atmosphere of Venus wasn't always as warm as now: a few hundred million years ago it was much more habitable. I am interested in how fast the interior...

Asked on 12/03/2020 by zabop

0 answer

jellium model and first Brillioun zone

Does the summation over k in the second quantized Hamiltonian of Jellium model sum over all wave vector satisfying periodic boundary condition, or only sum over the first Brillioun zone?...

Asked on 12/03/2020 by Tixuan Tan

0 answer

Will the CMB ever stop shining?

Will we ever reach a point where all the light that was set free by recombination finally reaches us from our point of view and the CMB stops "shining" for...

Asked on 12/03/2020

5 answer

Singularities in path integrals

So, I once watched a video (I think it was by Andrew Dotson) that I can't find any more about techniques used to deal with singularities in path integrals. The...

Asked on 12/03/2020 by Eliot

0 answer

How to estimate the frictional losses of a car drivetrain?

I'm making a car driving video game which uses real engine torque curves, gear ratios and other physical attributes as parameters to simulate the motion of a specific car. The...

Asked on 12/03/2020 by eltopo

1 answer

Trying to understand the electric potential and potential energy

I am trying to understand some facts on electrical potential and potential energy. It is quite confusing in the text to say that the zero potential could be freely chosen...

Asked on 12/03/2020 by user1285419

4 answer

Interference of light waves

So my problem now is how do I add the intensities of the resultants of the two constructive interferences. Thanks...

Asked on 12/03/2020

2 answer

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