(a) A unit of time sometimes used in microscopic physics is the shake. One shake equals 108 s. Are there more shakes in a second than there are seconds in a year? (b) Humans have existed for about 106 years, whereas the universe is about 1010 years old. If the age of the universe is defined as 1 “universe day,” where a universe day consists of “universe seconds” as a normal day consists of normal seconds, how many universe seconds have humans existed?
(a) A unit of time sometimes used in microscopic physics is the shake. One shake equals 108 s. Are there more shakes in a second than there are seconds in a year? (b) Humans have existed for about 106 years, whereas the universe is about 1010 years old. If the age of the universe is defined as 1 “universe day,” where a universe day consists of “universe seconds” as a normal day consists of normal seconds, how many universe seconds have humans existed?
University Physics Volume 3
17th Edition
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:William Moebs, Jeff Sanny
Chapter5: Relativity
Section: Chapter Questions
Problem 62P: The Big Bang that began the universe is estimated to have released of energy. How many stars could...
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(a) A unit of time sometimes used in microscopic physics is
the shake. One shake equals 108 s. Are there more shakes in a
second than there are seconds in a year? (b) Humans have existed
for about 106 years, whereas the universe is about 1010 years
old. If the age of the universe is defined as 1 “universe day,”
where a universe day consists of “universe seconds” as a normal
day consists of normal seconds, how many universe seconds have
humans existed?
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