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I came across this article [1], in which the author studies some Hamiltonian that have a discrete spectrum even though they do not go to infinity at...
Asked on 08/13/2021 by SolubleFish
0 answerI'm working through a proof in Griffith's Quantum Mechanics book (Chapter 1.4 - Normalization) and feel like a subtle detail is being omitted. If anyone can supply clarity that would...
Asked on 08/13/2021 by OllieGrayson
1 answerI know that the radius of the photon sphere of a Black Hole is derived by solving the Einstein field equations and it represents the smallest gravitational stable orbit around...
Asked on 08/13/2021 by Munj Patel
2 answermy mechanics sir was telling us the other day that when the relative velocity is zero between the surface and the object then the object starts sliding, eg in rolling...
Asked on 08/13/2021
2 answerI have a doubt about the applying Gauss' Law for Electric displacement. From what I know, $$vec{nabla} cdot vec{D} = vec{nabla} cdot (epsilon_0vec{E} + vec{P})$$ And Gauss' Law states...
Asked on 08/13/2021 by Drake
0 answerWhen deriving Torricelli's law, pressure at points 'a' and 'b' are said be equal to atmospheric (Figure 1 below). Torricelli's law became a specific case of...
Asked on 08/13/2021 by ilich qynn
1 answerthis is my first post/question, so I apologize in advance for any mistakes in phrasing or format or anything else. Consider a conformal field theory (CFT) with exactly marginal deformations...
Asked on 08/13/2021 by void_of_reason
1 answerI have been, quite a few times, been caught up in arguments on the internet, where my opponent posits causal events existed before the "singularity" at the "beginning" of the...
Asked on 08/13/2021 by Vigdis
1 answerConsider an object which has been given a speed $v$ on a rough horizontal surface. As time passes, the object covers a distance $l$ until it stops because...
Asked on 08/13/2021 by archmundada
5 answerThis refers to my other question Why is the ideal gas law only valid for hydrogen?. In the update, my teacher said that hydrogen is closer to an ideal...
Asked on 08/12/2021
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