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If your heart is beating at 76.0 beats per minute, what is the frequency of your heart's oscillations in hertz?A) 3.98 HzB) 4560 HzC) 2.54 HzD) 1450 HzE) 1.27 Hz

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cjrodriguez89

Answer:

E) 1.27 Hz

Explanation:

  • If the heart beats 76 times in a minute, this means that the time needed for a single beat (the period of the oscillation), is just 1/76 of a minute, as follows:

       [tex]T = \frac{1}{76} min = 0.013 min = 0.79 sec. (1)[/tex]

  • The frequency of the oscillation, by definition, is just the inverse of the period T, as follows:

      [tex]f = \frac{1}{T} = \frac{1}{.79sec} = 1.27 Hz (2)[/tex]

  • The right answer is the E).

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