When Tuning a Piano,a Technician Strikes a Tuning Fork for the a Above

question 33

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) \(\frac { 1 } { 880 }\) sec
• B)440 sec
• C) \(\frac { 1 } { 440 }\) sec
• D)880 sec
• E)88 sec

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Definitions:

Stroma

The supportive tissue of an epithelial organ, tumor, gonad, etc., consisting of connective tissues and blood vessels.

ATP Synthase

Complex of proteins in the cristae of mitochondria and thylakoid membrane of chloroplasts that produces ATP from the diffusion of hydrogen ions across a membrane.

Coenzyme

Nonprotein organic molecule that aids the action of the enzyme to which it is loosely bound.

Light Reactions

The initial phase of photosynthesis where solar energy is converted into chemical energy in the form of NADPH and ATP.