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There is a mass A attached to a horizontal spring fixed at an end. An equal mass B comes along and hits the mass with velocity $v$. Can I...
Asked on 10/19/2020 by Bikash Adhikari
2 answerI have read that in a capacitor with charged parallel plates the electric field lines are parallel in the middle, but they tend to bend outwards (causing a "fringe") towards...
Asked on 10/19/2020 by Abhinav Tahlani
2 answerMoving fluids are generally in a state of non-equilibrium. However, in fluid dynamics, people generally assume a state of local thermodynamic equilibrium and argue that in such a condition, equilibrium...
Asked on 10/19/2020 by Shivam Sinha
2 answerHow does a star as large as Stephenson 2-18 get this big? It is 2500 times larger than the sun. Did it start out as a large star with...
Asked on 10/19/2020
1 answerI'm following the Srednicki book, Ch. 2 The definitions are: Small Lorentz transformation on Minkowski space, so $S^{mu nu}$ forms the vector representation of the Lorentz group$$...
Asked on 10/18/2020 by user16320
0 answerI have been studying Raychaudhuri equation and focusing theorem related to it. Focusing theorem says that if the strong energy condition is satisfied and rotation tensor vanishes $omega_{ab}$=0 then...
Asked on 10/18/2020
1 answerIt may be a very stupid question, but still. Given a periodic table Why there is a well/hole of missing...
Asked on 10/18/2020 by Agnius Vasiliauskas
1 answerWhat are some of the known/ongoing quantum computing applications that we will see as the earliest applications in a business setup?...
Asked on 10/18/2020 by Vikas Pandey
1 answerPardon me for taking some time to set up my notation as I do not come from a physics background and am not using the standard statistical mechanics notation. Consider...
Asked on 10/18/2020 by user3338852
0 answerI know how to treat Feynman interactions without derivatives by Wick contraction. But now, take for example $$mathcal{L}_{int}=lambda phi (partial_{mu}phi)(partial^{mu}phi).$$ Now many books write that in momentum space the...
Asked on 10/17/2020 by korni1990
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