You Are Driving Along a Highway at 25

question 45

Multiple Choice

You are driving along a highway at 25.0 m/s when you hear the siren of an emergency vehicle traveling in the opposite direction on the other side of the highway. When the vehicle is approaching you, you hear the frequency of the siren as 2380 Hz, but when it is past you the frequency becomes 1680 Hz. What is the frequency of the siren? The speed of sound in air is 343 m/s.

• A) 1850 Hz
• B) 2000 Hz
• C) 2050 Hz
• D) 2010 Hz
• E) 1980 Hz

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Definitions:

Annual Dividend

An annual dividend is the yearly sum paid by a corporation to its shareholders, representing a portion of the company's earnings distributed per share.

Rate of Return

Rate of return is the gain or loss on an investment over a specified period, expressed as a percentage of the investment's initial cost.

Dividend Remains

Indicates the portion of earnings that a company decides to retain rather than distribute to shareholders as dividends.

Annual Dividend

The total dividend payment a shareholder receives from a company in a single year.