1 answer

Assume a typical hummingbird has a lifespan of 4.0 years and an average heart rate of 1300 beats per minute

Question:

Assume a typical hummingbird has a lifespan of 4.0 years and an average heart rate of 1300 beats per minute. (a) Calculate the number of times a hummingbird's heart beats in its life, and express it in scientific notation. Use 365.24 days per year. (b) A long-lived elephant lives for 61 years, and has an average heart rate of 25 beats per minute. Calculate the number of heartbeats in that elephant's lifetime in scientific notation.

Answers

1. (4x365,24x24x60) x 1300 =2.735 x10^9
2. (61x365.24x24x60) x 25 =8.02x10^8.

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