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I came up with a doubt regarding isochoric irreversible processes. Question: Is it always true that, for any isochoric process, reversible or not, the work exchanged by the...
Asked on 01/18/2021 by Sørën
2 answerI am trying to understand the cosmological consequences of having a Universe with non-zero total charge. For example, an infinite, unbounded universe with a finite total charge and thus zero...
Asked on 01/18/2021 by TVN
0 answerThe Hamiltonian of the Klein-Gordon Field may be written $$H=intfrac{d^{3}p}{(2pi)^{3}}frac{1}{2omega_{mathbf{p}}}omega_{mathbf{p}}left(a^{dagger}(p)a(p)+frac{1}{2}(2pi)^{3}2omega_{mathbf{p}}delta^{(3)}(0) right)$$ where $a(p)$ and $a^{dagger}(p)$ are the usual creation and annihilation operators and $omega_{mathbf{p}}=sqrt{|mathbf{p}|^{2}+m^{2}}$ is the...
Asked on 01/17/2021 by klgklm
2 answerWe have a mass sustained by a spring $K$ and a damper $C$, with a base excitation. Let's call $s(t)$ the base excitation and $x(t)$ the...
Asked on 01/17/2021 by Mattia
0 answerConsider a scalar field $phi(t, x, y, z)$ obeying the waves equation with an Higgs-like potential (the "mexican hat"):$$tag{1}mathcal{V}(phi) = frac{lambda}{4} (phi^2 - phi_0^2)^2,$$where...
Asked on 01/17/2021
0 answerMy questions related Dispersion through Glass Slab: Why does a parallel surface makes a difference?Why is that light do get disperse in a prism and a glass slab at surface...
Asked on 01/17/2021
2 answerOver the surface of interference, illumination varies. We have calculated so perfectly about it so that we know exactly how the variation chart looks like. Even our vision renders it...
Asked on 01/17/2021 by Tony Marshle
1 answerI have two questions on the general topic of energy potentials that diverge at infinity. First of all, the inverted harmonic oscillator. I found this post on Physics SE, ...
Asked on 01/17/2021 by Smerdjakov
1 answerI'm investigating element, temperature, and charge separation caused by Marklund Convection in air (starting at ambient conditions). I haven't been able to find much published work on this subject; so...
Asked on 01/17/2021 by SR999
0 answerIs it possible to create a sonic boom using a specially designed audio device for this purpose?...
Asked on 01/17/2021 by George Marshall
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