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In this video https://youtu.be/2o3-GTk72x8, Professor Michel Biezen derives the following equation : $$mx’’+mell left(theta’’ cos(theta)-sin(theta)(theta’)^2right) = -kx. $$ However, the terms inside the bracket are not...
Asked on 09/30/2021
2 answerconsider the photon in QED and the corresponding EOM of its Green's functional in k-space: $$(k^mu k^nu-k^2g^{munu})Delta_{nurho}(k)=idelta^mu_rho.$$ Now, I understand that $U^{munu}(k):=k^mu k^nu-k^2g^{munu}$ is not injective, since ...
Asked on 09/30/2021
2 answerSo I am doing a lot of research on evaporative coolers and I have come to a question I can't find much info on. I am currently a mechatronics engineering...
Asked on 09/30/2021 by Thermr
1 answerI want to simulate triatomic reactions without going to spherical/hyperspherical system. I need some resources such as books or papers where the theory of triatomic reactions is given in rectangular...
Asked on 09/30/2021
0 answerIn Griffiths, it is noted that there is a discontinuity in the electric field for a material with a surface charge density. ...
Asked on 09/30/2021
1 answerI have checked online and the Kerr metric never seems to be given in Cartesian coordinates (although there is a conversion factor from Cartesian to Boyer-Lindquist coordinates). Is there...
Asked on 09/30/2021
1 answerFrom basic physics any object experiencing a uniform circular motion, experiences a centripetal force. However in electric machines at high speed the rotor would be deformed outward as if a...
Asked on 09/30/2021
1 answerSome physics literature says Horizontal Symmetry of gauge theory, such as this paper, available also at arXiv. What does this Horizontal Symmetry of gauge...
Asked on 09/30/2021
1 answerNote: I'm a bit new to this subject, so I'm looking for some general answers, ballparks, and direction to continue my research. Scenario: I have three electromagnets capable of X...
Asked on 09/30/2021 by Matt Kenefick
1 answerI will try my best to explain. When I think about waves, I generally tend to first visualize a stable and flat two-dimensional surface, in position 0. When a normal...
Asked on 09/30/2021
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