When Tuning a Piano, a Technician Strikes a Tuning Fork $\pi$

question 103

Multiple Choice

When tuning a piano, a technician strikes a tuning fork for the A above middle C and sets up a wave motion that can be approximated by
Y = 0.001 sin 880 $\pi$ t,

Where t is the time (in seconds) .

What is the period of the function

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