You Are Driving Along a Highway at 35

question 81

Multiple Choice

You are driving along a highway at 35.0 m/s when you hear the siren of a police car approaching you from behind and you perceive the frequency as 1340 Hz. You are relieved that he is in pursuit of a different speeder when he continues past you, but now you perceive the frequency as 1300 Hz. What is the speed of the police car? The speed of sound in air is 343 m/s.

• A) 38.4 m/s
• B) 30 m/s
• C) 39.2 m/s
• D) 40.1 m/s
• E) 41.7 m/s

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Definitions:

Competitive

Being Competitive means being able to offer products or services that are more attractive to consumers than those of competitors, either through lower prices, higher quality, or unique features.

Economic Profit

The difference between the total revenue earned by a business and the total opportunity costs of all resources used in production.

Competitive

Relating to or characterized by rivalry among sellers in a market, aiming to increase sales, market share, and customer loyalty by offering better terms.

Maximum

The highest or greatest possible amount or degree of something.