University Physics With Modern Physics Technology Update, Books A La Carte Edition
University Physics With Modern Physics Technology Update, Books A La Carte Edition
13th Edition
ISBN: 9780321898104
Author: Hugh D. Young, Roger A. Freedman
Publisher: Addison-wesley Longman
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Chapter 44, Problem 59E

(a)

To determine

To explain: Why the expansion of the universe actually slowed down in its early history but is speeding up today.

(b)

To determine

To compare: The value of the scale factor of the universe in the present and the past history of the universe.

(c)

To determine

The nature of the expansion speed of the cluster of galaxies at 300My ago and 10.2By ago.

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