Two Motors in a Factory Are Running at Slightly Different $786.0 \mathrm { rpm } \text {. }$

question 144

Multiple Choice

Two motors in a factory are running at slightly different rates.One runs at 825.0 rpm and the other at $786.0 \mathrm { rpm } \text {. }$ You hear the sound intensity increase and then decrease periodically due to wave interference.How long does it take between successive instances of the sound intensity increasing?

• A)1.54 s
• B)1.43 s
• C)1.66 s
• D)1.79 s

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Definitions:

Clear Liquids

Liquids that are transparent and free of solids, often recommended before certain medical procedures or tests.

Baseline

An initial set of measurements or observations used as a reference point for comparison over time or conditions.

Preoperative

Pertaining to the period or phases preceding a surgical operation, involving preparation and evaluation of the patient for surgery.

Deep Breathe

A respiratory exercise involving deliberate, slow inhalation followed by prolonged exhalation, used to promote relaxation or improve lung function.