You Are Driving Along a Highway at 35

question 100

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 at constant speed and you perceive the frequency as
.You are relieved that he is in pursuit of a different driver when he continues past you,but now you perceive the frequency as
What is the speed of the police car? The speed of sound in air is

• 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:

Direct Cost

A cost that can be directly attributed to the production of specific goods or services, such as raw materials and labor.

Period Cost

Expenses incurred by a business that are not directly tied to the production process, often including administrative and sales expenses.

Direct Materials

Raw materials that are directly used in the production of a product, easily traceable to the finished product.

Bakery

A place where bread, cakes, cookies, and other baked goods are made or sold.