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I found this interesting note in one of my textbooks,The enormous strength of the electromagnetic force compared to gravity is evident in our daily life. When we hold a book...
Asked on 02/22/2021
3 answerSo in the Wikipedia Page of Dirac equation we are presented with this equation$$nabla^2 - frac{1}{c^2}frac{partial^2}{partial t^2} = left(A partial_x + B partial_y + C...
Asked on 02/22/2021 by test00alone
1 answerI know that Einstein’s theory of general relativity predicts that the wavelength of electromagnetic radiation will lengthen as it climbs out of a gravitational well. Photons must expend energy to...
Asked on 02/22/2021
1 answerOur night sky is filled with stars. On a dark night a significant fraction of the sky is light. This light, we are told, has been in transit for many...
Asked on 02/22/2021
3 answerThis may be outside the scope of this site, but it's worth a try. Years ago, some time between 1989-1992, I was living in Bridgeport CT and working as a...
Asked on 02/22/2021 by Beartech
0 answerIn both this Veritasium Video and this answer it is said that Quarks suppress gluon fluctuations, thus creating a so-called 'flux tube' which is what binds...
Asked on 02/22/2021
1 answerI know that we can write the density matrix of two qubits in the form$$rho = frac14(I + mathbf{a}cdotvec{sigma}otimes I + I otimes mathbf{b}cdotvec{sigma} + t_{ij} ,...
Asked on 02/22/2021 by riddle lover
0 answerI have found when temperature limits to zero specific heat of Ising model results as 0. However, for Heisenberg model for limiting to 0 gives a constant. Why do these...
Asked on 02/22/2021
0 answerIn the system of up-spin and down-spin states of an electron, we can write a general state of electron at time $t$ as $$left|psi(t)right>=aleft|uparrowright>+bleft|downarrowright>,$$ where $left|uparrowright>$ is up-spin state and...
Asked on 02/22/2021 by user176263
2 answerI've been working on this problem for a little bit and haven't made a whole lot of progress. For part (a) I used a formula for calculating the relative chemical...
Asked on 02/22/2021 by Ronan
2 answerGet help from others!
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