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Consider that I have a water boiling kettle as below. Assume that it is made of metal, not plastic (but plastic probably also will do). Assuming I can adjust the...
Asked on 12/01/2020 by AirCraft Lover
2 answerImagine a photon passes by a stationary atom in a large void of empty space. We know that the gravity of the atom will bend the path of the...
Asked on 12/01/2020 by Derek Seabrooke
1 answerSuppose there is a wooden block in a liquid in beaker.So there would be MG, buoyant force downwards, and normal contact force due to water also right? Would that...
Asked on 12/01/2020 by Sachin Chaudhary
1 answerIn this video lecture , at 39:37, The professor describes that if we do the process slowly then the system moves through a set of equilibrium states...
Asked on 12/01/2020
3 answerGiven a general (time-independent) system where I have some Hermitian operator $O$, is there a way of knowing if $O$ happens to be the Hamiltonian? In other words,...
Asked on 12/01/2020 by jfeis
1 answerThe two point correlator of Quantum H.O. of natural frequency $omega$, calculated using path integrals, is$$C_{2}=Dleft(t_{2}-t_{1}right) propto int frac{d w^{prime}}{2 pi} frac{e^{-i w^{prime}left(t_{2}-t_{1}right)}}{w^{prime2}-w^{2}}tag{1}$$ which evaluated using contour...
Asked on 12/01/2020 by aneet kumar
0 answerThe Standard Model, and current measurements of the Higgs mass, suggest that our universe is in a metastable state, which may catastrophically collapse into a false vacuum. ...
Asked on 12/01/2020 by Jake Zhou
2 answerFor the VOC it is: VOC = E_g - something, where something is positive and depends on the Urbach energy. Otherwise it should be linear:https://aip.scitation.org/doi/pdf/10.1063/1.49397 For...
Asked on 12/01/2020
1 answerIn volume two of the Feynman Lectures on Physics, Chapter 18, here: http://www.feynmanlectures.caltech.edu/II_18.html There is a scenario in which an infinitely extending charged sheet is suddenly kicked...
Asked on 12/01/2020 by user154080
1 answerI was recently solving a physics problem that gave you the electric field $$E(x, y, z, t) = E_{0}cos(k_{y}y + psi_{y})sin(k_{x}x-{omega}t)hat{z}$$ and the question asked for a variety of...
Asked on 12/01/2020 by levente.nas
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