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Classical Mechanics, Second Edition, 2nd Edition
book

Classical Mechanics, Second Edition, 2nd Edition

by Tai L. Chow
May 2013
Intermediate to advanced content levelIntermediate to advanced
639 pages
23h 12m
English
CRC Press
Content preview from Classical Mechanics, Second Edition, 2nd Edition
500 Classical Mechanics
© 2010 Taylor & Francis Group, LLC
applying Newtonian gravitation. A uid with zero pressure moving according to Newton’s laws of
motion and gravitation is known as a Newtonian dust. We now consider a Newtonian dust of uni-
form density ρ(t), which is in a state of uniform expansion; the only force on it is gravity. We will
work with a co-moving coordinate system, which is carried along with the expansion. Because the
expansion is uniform, the position vector
rt()
of a uid particle (a galaxy) at any time can be written
in terms of the co-moving distance, which we call
c
:

rt stc() ()= (14.23)
where s(t) is known as the ...
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Publisher Resources

ISBN: 9781466569980