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I am a bit confused what tire pressure to use when doing calculations using ideal gas laws such as Amonton's law (pressure proportional to temperature at constant volume). As far...
Asked on 02/04/2021
1 answerSchwartz's QFT equation (3.43) reads $$ mathcal{L} = - frac{1}{4} (partial_mu A_nu - partial_nu A_mu)^2 - A_mu J_mu. tag{3.43}$$ Does the contraction of $mu$ on the last term...
Asked on 02/04/2021 by Physics Enthusiast
1 answerAre polarization-entangled photons correlated spatially? That is, if I took a pair of entangled photons and looked at their spatial modes with two cameras (one for each photon), would I...
Asked on 02/04/2021
0 answerIn https://arxiv.org/abs/hep-ph/0010057 the following vector calculus equality is claimed without proof although in note [4] the cryptic comment is made that "The relation is essentially the momentum...
Asked on 02/04/2021 by hyportnex
1 answerI'm trying to consider relativistic multi-body dynamics in special relativity. In classical mechanics, it's easy to write a simple $n$-body system with arbitrary potential $V$: begin{equation}m...
Asked on 02/04/2021
1 answerI play a kalimba, and have also recently written a toy program that helps me tune it using a "naively applied FFT" without any...
Asked on 02/04/2021 by Reinderien
1 answerSo here's the question that I'm stuck on.A particle slides from the top of a smooth hemispherical surface of radius $R$ which is fixed on a horizontal surface. If...
Asked on 02/04/2021 by Alfa Boing
1 answerCan the units of $$frac{e,c}{2pi,f},$$ where $c$ is the speed of light, $e$ is the elementary charge and $f$ is the frequency, be correct for the...
Asked on 02/04/2021 by milk breath
1 answerI'm looking at the infinite square well case for solving the Schrodinger equation in quantum mechanics. I see that when solving the time-independent Schrodinger equation, we find that the energies:...
Asked on 02/04/2021
3 answer(I found a workable solution, skip to the "Solution" part to see it) I am attempting to derive equations 2 and 6 from Xiao et al. paper "Valley contrasting physics...
Asked on 02/04/2021 by John Tiessen
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