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I need to calculate the amount of heat that is lost in an hour. I know the temperature of the building the (effective) temperature of the outside and the...
Asked on 02/03/2021 by Rixte de Wolff
1 answerWhat is the simplest way to describe the difference between these two concepts, that often go by the same name?...
Asked on 02/03/2021
1 answerSuppose we have a Hamiltonian dependent on a parameter.begin{equation}hat{H}(lambda)=hat{H}_{0}+lambda hat{V}end{equation}We study how the energy eigenstates vary with the parameter by solving,begin{equation}hat{H}(lambda)|n,lambdarangle=E_{n}(lambda)|n,lambdarangleend{equation}...
Asked on 02/03/2021 by Stephen Blake
1 answerI know you can't have work without any displacement, so I was kind of wondering as to what keeps, for example, a man on a jetpack, off the ground but...
Asked on 02/03/2021 by Qyo
5 answerQ: An amusement park proprietor wishes to design a rollercoaster with a vertical circular loop in the track, of radius $R = 20, rm m$. Before the cars reach...
Asked on 02/03/2021 by Ghost Repeater
5 answerI send photons one at a time through a Mach–Zehnder interferometer with two detectors. Quantum superposition ensures that photons only reach one of the detectors. The interferometer is initially...
Asked on 02/03/2021
0 answerIn one section in my plasma physics notes (see below) on the Vlasov equation, 6D phase space & the kinetic model for plasma, I can't quite understand how (via Gauss's...
Asked on 02/03/2021
0 answerIntroduction Six point charges of magnitude $Q_0$ is evenly distributed on a sphere with radius $a$ and center in the origin. The six point charges have the cartesian...
Asked on 02/03/2021
2 answerI'm currently working through Robert Klauber's Student Friendly Quantum Field Theory, which by the way is much more accessible than other texts like, say, Peskin and Schroeder, for others also...
Asked on 02/03/2021 by EthanT
2 answerConsider some quantum well of infinite depth, that is, for some region $R$,$$V(r)=begin{cases}0, quad r in Rinfty, quad r notin Rend{cases}$$...
Asked on 02/03/2021 by trytryagain
3 answerGet help from others!
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