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One of my physics teachers told me that in the formula of calculating weight i.e. $W = mg$, $m$ is not equal to 0 until and unless you're...
Asked on 09/16/2020 by Physics07
2 answerWhen we differentiate the total energy with respect to the time and set it to zero (make it stationary), we get an expression as similar to what we get while...
Asked on 09/15/2020 by Tom Curran
3 answerI tried to make a plan for a turbojet engine with my physics knowledge and I'm stumped in the first step. For any sustained real engine, I need to somehow...
Asked on 09/15/2020 by Rajat Mondal
0 answerI'm having a discussion at the moment regarding the mass of $1,{rm kg}$ of feathers and $1,{rm kg}$ of steel. The person I'm arguing with states that ...
Asked on 09/15/2020 by James Thorpe
4 answer"Crack The Whip" is a game played on ice skating rinks where several individuals line up all facing the opposite end of the rink, and skate forward. When the group...
Asked on 09/15/2020 by Mark Baldridge
1 answer(This is part c & d of problem 7.9 from Schwartz' book on QFT).Show that a propagator only has an imaginary part if it goes on-shell. Explicitly, show that ...
Asked on 09/15/2020 by Alex Marshall
2 answerassuming the diffusive motion of a substance $u(x,t)$ depends on a variable $b(u(x,t))$.Fickian Diffusion then reads$$ frac{partial u}{partial t}=frac{partial}{partial x}left(D(b(u(x,t)))frac{partial u}{partial x}right)$$Conversely, the Fokker-Planck equation reads...
Asked on 09/14/2020 by gumpel
2 answerI'm searching particle accelerators. I couldn't see focusing magnets in Linear accelerators. When we need focusing magnets in Linacs? I'm sharing some photos of what ı found....
Asked on 09/14/2020 by Furkan Kahveci
1 answerI've worked $rm AdS$ using global coordinates and the ideas of a conformal boundary is plausible. Radial $rho$ coordinate can be compactified and we can study its conformal...
Asked on 09/14/2020 by OMAR MEDINA BAUTISTA
1 answerWhat is the difference between laser beams and ion beams, especially in inertial confinement fusion? In inertial fusion, we use lasers as well as ion beams for driving the reaction....
Asked on 09/13/2020 by user68857
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