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In gravitational field, the things are usually different from those in flat spacetime. For instance, sometimes you have to use covariant derivative $nabla$ instead of ordinary differential $partial$,...
Asked on 01/31/2021
1 answerIn this https://youtu.be/YCrFwQtW5o0 sir took a disk and demonstrated that the particles kept on it fly away due to centrifugal force. Now, suppose I take a ring...
Asked on 01/31/2021 by Prateek Mourya
1 answerWhy would a membrane depolarisation be localised to one part of the membrane? If adjacent areas have a more negative potential shouldn't the difference in potential cause charge to flow...
Asked on 01/31/2021 by liyuan
2 answerThere are many questions asked about different Planck units. This question is just a generalization of all of those questions. Planck units are considered to be natural units. The thing...
Asked on 01/31/2021 by Jhuma Sarkar
1 answerWhen reading about Compton scattering I see the following figure: It shows that as a function of scattering angle the...
Asked on 01/31/2021 by user1551817
1 answerIf I pick up a rock and set it on a ledge above my head, I do work in the process. The work I do is termed "potential energy". We...
Asked on 01/31/2021 by M. Pope
2 answerI came across this, begin{post}To each state there corresponds a unique state operator.The average value of a dynamical variable textbf{R}, represented by the operator $R$ ,in the virtual ensemble...
Asked on 01/31/2021 by Boltzee
2 answerTraveling south on CA 99 we noticed that atmospheric conditions were exceptionally clear and played a little game attempting to determine how far away we could identify Shasta. As we...
Asked on 01/31/2021
1 answerI've been self studying some special relativity by reading some textbooks, and I'm somewhat confused about the process of computing velocities. The book I'm reading primarily identifies computation of velocities...
Asked on 01/31/2021 by stanfordude
1 answerIt was experimentally deduced that$$F_e propto q_1q_2$$$$F_e propto dfrac{1}{R^2}$$where $F_e$ denotes the electrostatic force between two charged particles with the magnitude of their charges...
Asked on 01/31/2021
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