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Physics : Recent Questions and Answers (Page 99)

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

In Maxwell's demon, why are all the cold gas molecules on the same side?

In the Maxwell's demon thought experiment, initially, the gases in both boxes have the same temperature. The devil uses the door in the middle to allow the...

Asked on 08/23/2021 by Kongsperfect

2 answer

Lindblad equation solution

I have been trying to solve a Lindblad Equation and then thought about whether there is a closed form Lindblad Equation solution for most types. Googling hasn't lead me to...

Asked on 08/23/2021

2 answer

Would displacement vs time of circular motion be a $sin/cos$ curve or parabola?

If you were to graph the displacement from one specific point in a circle of an object rotating, example the boomerangs displacement from the thrower. Would you use a parabola,...

Asked on 08/23/2021

1 answer

Exceptions to the Aufbau principle?

Why are there exceptions to the Aufbau Principle? How do the abnormalities occur and why? If you could specify a few exceptions that would be swell. ...

Asked on 08/23/2021

2 answer

How many physically demonstrated universal scalar fields exist?

Besides Higgs' field, and not counting purely theoretical universal scalar fields such as those attributed to branes, how many universal scalar fields have been demonstrated? Please include names of such...

Asked on 08/23/2021 by John Read

1 answer

Trace over configuration basis

Let us take a many-body quantum system, whose phases in the configuration basis are labeled by $mathbf {hat q}=(q_1,cdots, q_N)$ and momenta $mathbf {hat p}=left(-ifrac{partial}{partial hat q_1},cdots, -ifrac{partial}{partial...

Asked on 08/23/2021 by Graz

1 answer

Why does a collection of radioactive atoms show predictable behaviour while a single one is highly random?

Well, we know that it is impossible to say exactly when a radioactive atom will go on decay. It is a random process. My question is why then a collection...

Asked on 08/23/2021

9 answer

Charge Moving in Field of Magnetic Dipole

I'm self-studying Kibble & Berkshire Classical Mechanics, and I'm completely stuck on Problem 11 in Chapter 12 on Hamiltonian mechanics. It asks about a particle of mass m and charge...

Asked on 08/23/2021 by TKT

0 answer

Why is the real part of optical conductivity dissipative although the real part of susceptibility is dispersive?

I have a puzzle about the optical conductivity. In Drude model, it is often said that the real part of tells us about the dissipation of energy in the system;...

Asked on 08/23/2021

1 answer

Why higher thermal expansion coefficient for ionic solids than non-ionic?

As heat is supplied to an object, its lattice vibrates more. Thus average equilibrium position between ,say two adjacent atoms, increases with increase in temperature. ...

Asked on 08/23/2021 by Hadron07

2 answer

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