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NST2AS NATURAL SCIENCES TRIPOS Part II Mon 5 June ...
https://www.ast.cam.ac.uk/sites/www.ast.cam.ac.uk/files/media/2023_nst2as_papers_i-iv.pdf5 Dec 2023: Rtt =A′′. A+ 2. B′′. B. [5]. [You may use Rµν = ρΓρµν µΓρρν ΓτρνΓρµτ ΓτµνΓρρτ.]. ... B′. B+. (B′. B. )2],. determine the Ricci scalar. [3]. (c) A dust-like fluid with mass density ρ is at rest in the x, y, z -
NST2AS NATURAL SCIENCES TRIPOS Part II Monday 4 June ...
https://www.ast.cam.ac.uk/sites/www.ast.cam.ac.uk/files/media/2018_nst2as_papers_i-iv.pdf11 Jan 2023: Derive shock jump conditions analogous to the three Rankine-Hugoniotrelations if,. a) B = (B, 0, 0),. ... b) B = (0,B, 0). Discuss the physical meaning of the jump condition related to the momen-tum equation in these two cases. -
NST2AS NATURAL SCIENCES TRIPOS Part II Monday 3 June ...
https://www.ast.cam.ac.uk/sites/www.ast.cam.ac.uk/files/media/2019_nst2as_papers_i-iv.pdf11 Jan 2023: a) no magnetic fields are present;. (b) a uniform vertical magnetic field is present;. ... Find the probability that it makes a transition tothe state with opposite spin by assuming b B and using () from Part (i). -
paper1.dvi
https://www.ast.cam.ac.uk/sites/www.ast.cam.ac.uk/files/media/2012_nst2as_papers_i-iv.pdf11 Jan 2023: Show that. [b, b†] = 1. Consider the Hamiltonian. H = ǫa†a 1. ... 2. ǫ2 λ2. (. bb† b†b). ǫ2. ,. for some suitable choice of θ which should be determined. -
NST2AS NATURAL SCIENCES TRIPOS Part II Monday 30 May ...
https://www.ast.cam.ac.uk/sites/www.ast.cam.ac.uk/files/media/2016_nst2as_papers_i-iv.pdf11 Jan 2023: Sketch the shift in the (U–B, B–V )two-colour plane, specifying the slope and indicating the direction of increasingextinction. ... Discuss under what circumstances the position of a star in the (U–B, B–V ) two-colour plane can be used to infer -
Cop yrig ht © 2014 Uni vers ity o ...
https://www.ast.cam.ac.uk/sites/www.ast.cam.ac.uk/files/media/2014_nst2as_papers_i-iv.pdf11 Jan 2023: H0 =(a†a 1. 2. ) 2. (b†b 1. 2. ),. where [a,a†] = 1, [b,b†] = 1 and all other commutators are zero. ... 14θgab, or otherwise, that. dθ. dτ 1. 4θ2 R00 ,. where R00 = RabVaV b and.
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