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I'm a high schooler currently taking AP Physics C and during our review of kinematics, our teacher brought up the difference between speed and velocity. That is, speed is a...
Asked on 07/14/2021 by Snacc
1 answerWhen we have a resistor in electronic conductors, potential difference is created via surface charges which accumulate on conductor surface. What about electrolytes? I am not sure if electrolytes can...
Asked on 07/14/2021
0 answerIn my book, there is a problem“A nail placed normal to a wall is struck by a hammer of mass M kg;If the resistant force of the wall is F,what...
Asked on 07/14/2021 by munimul hoque
1 answerCan you entangle two already existing particles? or do you have to "create" entangled particles from "scratch"? if so, how would one do this? (say, entangle two already existing electrons)....
Asked on 07/14/2021
2 answerI've heard from my friend that snow flake forms around the tiny dust, flying in the atmosphere. I have not found any reliable source to confirm or reject it, that's...
Asked on 07/14/2021 by tarashypka
3 answerI have a valve with a $K_v$ value of 12 m$^3$/hr when fully opened. I know the pressures upstream and downstream of the valve, $p_mathrm{up}$ and ...
Asked on 07/14/2021
1 answerI read in this Wikipedia article:In the late 1960s, experimentalists had found that hadrons fall into families called Regge trajectories with squared energy proportional to angular momentum,...
Asked on 07/14/2021
1 answerI have a question about the Low reheating temperature. [https://arxiv.org/pdf/1406.0012.pdf] I'm confused about the order of the events and maybe in their definitions. Everything is summarized in this graph....
Asked on 07/14/2021
0 answerI have been reading the anyon theory by Kitaev and Wang. I have two possibly related questions:Why is the Pentagon equation/axiom sufficient for characterizing...
Asked on 07/14/2021
0 answerWhen solving the problems of V. Rubakov's "Classical Theory of Gauge fields" book, I encountered the following phenomenon:For a real scalar fields (spin 0) $phi$, if we consider the...
Asked on 07/14/2021
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