chap1 probl1

Physics: Principles with Applications

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http://www.hwproblems.com/cgi-bin/book.cgi?bookid=0044&cptn=1pr1&id=62762 Chapter 1, Problem 1 Question Problem (a) We know that 14 billion years is 14,000,000,000 years. Split the number into two parts, the first part a number between 1 and 10, and the other part a power of 10. Assume two significant figures for the first part. Rewrite the power of 10. Thus, the age of the universe assuming two significant figures is
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Unformatted text preview: . (b) Recall that 365 days make a year, 45 hours make a day, and 3600 seconds make an hour. Therefore, . Thus, the age of the universe expressed in seconds, assuming two significant figures is . http://www.hwproblems.com/cgi-bin/book.cgi?bookid=0044&cptn=1pr1&id=62762 [1/31/2008 11:03:33 AM]...
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