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As I know it, T-duality essentially tells us that if we compactify a superstring theory on a circle of radius $R$, it is equivalent to a string theory compactified...
Asked on 01/31/2021 by arow257
1 answerMy understanding of Kolmogorov scales doesn't really go beyond this poem:Big whirls have little whirls that feed on their velocity, and little whirls have lesser whirls and so on to...
Asked on 01/31/2021
3 answerCoulomb's Law states that the fall-off of the strength of the electrostatic force is inversely proportional to the distance squared of the charges. Gauss's law implies that the total flux...
Asked on 01/31/2021 by Justin L.
7 answerAccording to Fleming's left hand rule: I am a bit confused however in the case of an electron travelling in...
Asked on 01/30/2021 by Filthyscrub
2 answerAs far as I know, there are no known observations that require a quantum theory of gravity. Now, that's not to say we don't need a quantum theory of gravity....
Asked on 01/30/2021 by nordic_skier
1 answerJust a simple question: is it correct to say that the Lie algebra of ${rm U}(1)$ is formed by the generator $e^{i pi}$? Is it correct that ...
Asked on 01/30/2021
1 answerI'm given the following problem:A javelin thrower standing at rest holds the center of the javelin behind her head, then accelerates it through a distance of 70 cm as she...
Asked on 01/30/2021
1 answerIn AP Physics, I learned that when a changing magnetic flux generates an electromotive force around a loop, and emf is measured in volts, where are the "high" and "low"...
Asked on 01/30/2021 by Ming-Tang
4 answerIn Special Relativity we solve the problem of the moving wire with an electrical current saying the protons inside the wire have a higher density: hence the wire is not...
Asked on 01/30/2021 by Enrique
5 answerIn the page 74 of Batchelor's fluid mechanics book, it is given thatDifferentiation following the motion of the fluid It will be evident that in a steady flow field a...
Asked on 01/30/2021
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