Two Motors in a Factory Are Running at Slightly Different

question 23

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 rpm. 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) 1.79 s
• B) 1.43 s
• C) 1.66 s
• D) 1.54 s

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Definitions:

Shareholder's Wealth

The overall value that shareholders earn from their investment in a company, including dividends received and capital gains from share price appreciation.

Stock Split

A corporate action that increases the number of shares outstanding by issuing more shares to current shareholders, affecting share price.

Market Value

The existing cost at which a commodity or service is available for buying or selling in the market.

Shares Outstanding

The total number of shares that are currently owned by all shareholders, including share blocks held by institutional investors and restricted shares owned by the company’s officers and insiders.