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We know that when two particles collides inelastically, the net energy equation is given by$$E_i=E_f+Q$$ where $E_i$ and $E_f$ are initial and final mechanical energies of...
Asked on 01/10/2021
2 answerI was trying to find the time delay for the propagated wave shown below, noted that for all frequency the source voltage has the same value. The data was obtained...
Asked on 01/09/2021 by Maxwell
0 answerI know the title looks vague and the concept also looked strange to me when I read this. In the...
Asked on 01/09/2021
5 answerIn field theory, there's no guarantee that the energy-momentum tensor resulting from Noether's theorem is symmetric. The usual trick to construct a symmetric tensor is to add to the original...
Asked on 01/09/2021
0 answerIn quantum field theory in weak gravity regime, it is possible to trace out some region to obtain reduced density matrix of states restricted to hypersurface $V$. I believe...
Asked on 01/09/2021 by Chris Lew
0 answerParent questions:Do photons lose energy after radiation pressure is applied to a perfect reflector? Since radiation loses energy to radiation pressure in a reflection, can the entire...
Asked on 01/09/2021
3 answerImagine a black hole that is fast-approaching its final exponential throws of Hawking evaporation. Presumably, at all points in this end processthere will remain a region that identifiably remains...
Asked on 01/09/2021 by Terry Bollinger
3 answerI having trouble understanding the constraint derivative in the highlighted part of the picture below, which allows to convert the one adimensional thermodynamical relation into its dimensional counterpart.Specifically ,when...
Asked on 01/09/2021
1 answerWhen we're say about 100 km above Earth's ground and look down to it and see the Amazonian region as green, is this green color a sort of "average" of...
Asked on 01/09/2021 by AccidentalBismuthTransform
2 answerConsider a stationary Schwarzschild black hole: in a vacuum, no rotation, no electric charge. Using the Schwarzschild metric, we can draw diagrams describing how the radial coordinate $r$ varies...
Asked on 01/09/2021 by gamma1954
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