Pearson eText Life in the Universe -- Instant Access (Pearson+)

4th Edition

ISBN: 9780135234457

Author: Jeffrey Bennett, Seth Shostak

Publisher: PEARSON+

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Textbook Question

Chapter 5, Problem 49IF

Oxygen Atoms in People. Figure 5.6 shows that oxygen makes up about 65% of the mass of a human being. A single oxygen atom has a mass of 2.66 × 10⁻²⁶ kg. (a) Use this fact to estimate the number of oxygen atoms in your body. (Hint: If you know your weight in pounds, you can convert to kilograms by dividing by 2.2.) (b) Compare your answer to the number of stars in the observable universe (which is roughly 10²²).

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Chapter 5, Problem 48IF

Chapter 5, Problem 50IF

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Pearson eText Life in the Universe -- Instant Access (Pearson+)

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