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We know that each and every object in the universe which is having mass has center of mass, but while reading about a black hole we know(a general hypothesis is)that...
Asked on 06/03/2021 by bhaskar achalla
0 answerI want to learn about selection rules and so have to understand transition dipole moment.Here is a nice text on it: https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Book%3A_Quantum_States_of_Atoms_and_Molecules_(Zielinksi_et_al)/04%3A_Electronic_Spectroscopy_of_Cyanine_Dyes/4.05%3A_The_Transition_Dipole_Moment_and_Spectroscopic_Selection_Rules However it cops out...
Asked on 06/03/2021
0 answerThe vast majority of uranium is U-238, and most of the rest is U-235, U-232, U-234, etc.... So how can the averaged atomic weight be a little over 238?...
Asked on 06/03/2021
1 answerOk so basically I am trying to prove that the following expression: Can be written using matrices like this: ...
Asked on 06/03/2021 by stefan .gkotsis
1 answerOne can define the Tachyon field in SFT via State-Operator correspondence by $Phi(0)|0rangle = c(0)e^{ikX(0)}|0rangle = c_1|0;krangle$ with $|0;krangle = e^{ikX(0)}|0rangle$. I'm trying to realize how to construct...
Asked on 06/03/2021
1 answerEven we don't know much about scattering areas of photons and electrons does the fact that a photon scattering an electron at an angle mean that the photon cross-section area...
Asked on 06/03/2021
2 answerOn Wikipedia the d'Alembert operator is defined as$$square = partial ^alpha partial_alpha = frac{1}{c^2} frac{partial^2}{partial t^2}-nabla^2 $$However, my professor uses the notation:$$ square = partial...
Asked on 06/03/2021 by Alessio Popovic
2 answerLet an object of mass $m$ and volume $V$ be dropped in water from height $h$, and $a$ be the amplitude of the wave generated. What...
Asked on 06/03/2021 by Santosh Linkha
3 answerIf flow of electrons analogy can be imagined as flow of water, how to imagine electricity, that comes in this whole picture? When plug from bottom of sink is taken...
Asked on 06/03/2021 by Deele
2 answerI should start by saying that I am not a physicist, and I am not really familiar with Quantum dynamics. I am reading about the GNS representation in the ...
Asked on 06/03/2021
3 answerGet help from others!
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