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I understand that a black hole bends the fabric of space time to a point that no object can escape. I understand that light travels in a straight line...
Asked on 07/30/2020 by math and mountains
5 answerAny electron in an atom is described as a standing wavefunction in a potential well. In multielectron atoms, when an electron in any orbital beyond 1S² is described, is it...
Asked on 07/30/2020 by ThePhysicist
2 answerSome say that the battery supplies charge, some say that it only maintains potential difference, I've also heard that it maintains an electric field in the wire. I'm confused. What...
Asked on 07/29/2020 by Rusan Lamsal
1 answerWhen people talk about topological order and Majorana fermions in a BCS superfluid, do they admit the existence of a massless Goldstone mode? (As I've heard that soft Goldstone mode...
Asked on 07/29/2020 by Lagrenge
1 answerAccording to wikipedia vapor supersaturation is relatively common (20-40% of the time) in the upper troposphere. Assuming perfect conditions (such as sufficient visual contrast and no wind),...
Asked on 07/28/2020 by LoschmidtsSchnitzel
1 answerI am reading the introduction to the textbook The Quantum Theory of Light, third edition, by Louden. When discussing the photon, the author says the following:The idea of the photon...
Asked on 07/27/2020
3 answerWhy is it that when you look in the mirror left and right directions appear flipped, but not the up and down? ...
Asked on 07/27/2020
29 answerSometimes in books I use to see this expression$$widehat{Q}_{0}=left(3 z^{2}-r^{2}right)=sqrt{frac{16 pi}{5}} r^{2} Y_{20}(theta, phi)$$for quadrupole electric moment of the deuteron but sometimes i can see$$widehat{Q}_{d}=frac{1}{4}...
Asked on 07/26/2020 by Elpis
0 answerI have a question concerning the quantization of phase-space variables $(q_1, q_2, q_3, p_1, p_2, p_3)$ with the Hamiltonian $$H = frac{3}{2}(p_1^2+p_2^2 +p_3^2)$$ and the following...
Asked on 07/26/2020 by Viktor Zelezny
1 answerPoincare transformation consists of translation, rotation, and boosting. And by assuming the physical quantities are invariant and equations are covariant under the transformations, we build the models on particles. The...
Asked on 07/26/2020 by kevin012
3 answerGet help from others!
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