A Bat Emits a Sound at a Frequency of 30

question 12

Multiple Choice

A bat emits a sound at a frequency of 30.0 kHz as it approaches a wall.The bat detects beats such that the frequency of the echo is 900 Hz higher than the frequency the bat is emitting.The speed of sound in air is 340 m/s.The speed of the bat is closest to

• A) 20.0 m/s.
• B) 530 m/s.
• C) 10.0 m/s.
• D) 30.0 m/s.
• E) 5.02 m/s.

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Definitions:

Input Bundle

A combination of resources or inputs used in the production of goods and services.

Unit Costs

The cost incurred by a company to produce, store, and sell one unit of a particular product or service.

Price Ratio

The relative price of one good or service compared to another, often used in economic analysis.

Cost Function

An equation that calculates the total cost of producing goods or services as a function of the quantity of output produced.