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I thought that electron wave functions were only mathematical of were to find the electron. Why don't atoms collapse if they are mostly empty space?...
Asked on 12/08/2021
3 answerI am currently having problems understanding the energy transformations that occur when resistance in a solid conducting wire restricts current flow. From my understanding, resistance in a solid copper conducting...
Asked on 12/08/2021
1 answerI have raised this question as during reflection the direction of the ray is changed. Force is created by the particles(bosons). so, are reflections a type of force?...
Asked on 12/08/2021
3 answerWhen a block is stationary on an inclined plane, the frictional force on the base of the block has a torque about the center of gravity of the block. However,...
Asked on 12/08/2021
1 answerThe XY-model on a 2-torus ($L_1,L_2$) has a lagrangian given by$$L_{XY}[theta] = int d^2 x frac{chi}{2}big{(}dot{theta}^2 - (partial_x theta)^2big{)}$$Fourier expanding $theta$ as...
Asked on 12/08/2021
0 answerThere are some universe models where $Lambda < 0$. In this case, the energy density of the dark-energy becomes negative. At this point, does it make sense to talk...
Asked on 12/08/2021
1 answerWhen I want to calculate the entropy change of a system with two bodies with finite difference in temperature in an isolated system in thermal contact, do I calculate the...
Asked on 12/08/2021
4 answerIn Rydberg Atoms book by Thomas F. Gallagher, Page 14, the author provides the general equation of spherical harmonics which is well-known. He states that there exist $l-m$ nodes...
Asked on 12/08/2021
0 answerDoes tensor product of two Hilbert spaces explains interactions between the systems also? Or is it just the way to represent two spaces in a combined fancy way?Let me...
Asked on 12/08/2021
3 answerI see in this picture a beam of electrons leaving the cathode. But I read before, that the electrons can flow out of a copper wire only, if they are...
Asked on 12/06/2021
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