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When Tuning a Piano, a Technician Strikes a Tuning Fork

Question 201

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 880πt,
​
Where t is the time (in seconds) .
​
What is the period of the function?
​


A) 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 880πt, ​ Where t is the time (in seconds) . ​ What is the period of the function? ​ A) sec B) 440 sec C) sec D) 880 sec E) 88 sec sec
B) 440 sec
C) 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 880πt, ​ Where t is the time (in seconds) . ​ What is the period of the function? ​ A) sec B) 440 sec C) sec D) 880 sec E) 88 sec sec
D) 880 sec
E) 88 sec

Correct Answer:

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