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Chapter 1, Problem 21

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QUESTION:

Problem 21PE

Express your answers to problems in this section to the correct number of significant figures and proper units.

A person measures his or her heart rate by counting the number of beats in 30 s. If 40 ± 1 beats are counted in 30.0 ± 0.5 s , what is the heart rate and its uncertainty in beats per minute?

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QUESTION:

Problem 21PE

Express your answers to problems in this section to the correct number of significant figures and proper units.

A person measures his or her heart rate by counting the number of beats in 30 s. If 40 ± 1 beats are counted in 30.0 ± 0.5 s , what is the heart rate and its uncertainty in beats per minute?

ANSWER:

Step 1 of 7:

        To find the heartbeat rate and uncertainty in beats per minute

        Number of beats N = 401 beats

        Time taken t = 30.00.5 s

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