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

question 222

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 850 $\pi$ t,

Where t is the time (in seconds) .

The frequency is given by f = 1 / p.What is the frequency of the note?

• A)85 cycles/sec
• B) \(\frac { 1 } { 425 }\) cycles/sec
• C) \(\frac { 1 } { 850 }\) cycles/sec
• D)850 cycles/sec
• E)425 cycles/sec

Grasp the concept and calculation of residual income.

Comprehend the importance of turnover in evaluating divisional performance.

Understand how sales, gross margin, and net operating income influence an organization's financial performance.

Recognize the distinction between profit centers, investment centers, and cost centers.

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