Express your answers to problems in this section to the correct number of significant figures and proper units. a) Suppose that a person has an average heart rate of 72.0 beats/min. How many beats does he or she have in 2.0 y? (b) In 2.00 y? (c) In 2.000 y?

Solution 15PE: Step 1 of 4 (a) Consider the following conversion relation, Comments (2) 365.25 days24 hour 60 min 1 year = (1 year)( 1 year)( 1 day) (1 hour = 525,600 minutes Step 2 of 4 The average heart rate of a person is .72.0 beat/ min Therefore, the number of beats is . Comment 525600 minutes number of beats in 2.0 year = (72.0 beats/ min) ×( 1 year ) (2.0 year)