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I was reading Griffiths' book on eletrodynamics and I came upon the integral form of Gauss' Law for $D$ $$oint textbf{D} cdot dtextbf{a} = Q_{free}$$ Right...
Asked on 02/06/2021 by Heitor Ribeiro
3 answerIm working with a paul trap, where it has end caps $pm z_0$ with $V_0$ and a ring between them with radii $r_0$ and potential $-V_0$,...
Asked on 02/06/2021 by Undergrad2019
0 answerAfter years, I still find myself having trouble really internalizing the meaning of various differentials in integrals—specifically, when they come about via reasoning regarding physical phenomena. When I come back...
Asked on 02/06/2021
3 answer--Unsure if this is a question for Physics or for language/English stackexchange, asking this in Physics as I assume more people here are familiar with these notions in scientific talk--...
Asked on 02/06/2021 by Lucian Viorel
2 answerIn the weak gravitational regime where the low-energy effective action holds,(linearized) gravity can be quantized, and we can treat graviton as quantum fields on a Minkowski background. One can also...
Asked on 02/06/2021 by Shadumu
1 answerCan it be possible that in the big bang, not one, but two universes were formed, one formed of matter, and the other formed of antimatter? It seems logical to...
Asked on 02/06/2021 by PitifulStudent
4 answerIn the following series of questions:"Under ordinary operation a steady flow of helium gas of 60 g/s passes from a large storage manifold through an expansion engine as shown in...
Asked on 02/06/2021 by Aditya Chopra
1 answerIs a virtual image always erect? If so why it can't be never inverted. I got this doubt because I can see my inverted image on the concave side of...
Asked on 02/06/2021
0 answerCaroll, while proving the Newtonian limit takes $g_{ab} = eta_{ab} + h_{ab}$. He then just writes down the inverse metric to 1st order as $g^{ab} = eta^{ab} -...
Asked on 02/05/2021 by Shashaank
0 answerNote: I'm probably using the wrong letters/notation here. I apologize. I use $omega$ to represent an object, and $mathcal{U}$ is the universe. I'm not sure how else to...
Asked on 02/05/2021 by schuelermine
2 answerGet help from others!
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