A Certain Glass Window Reduces the Intensity Level of the Sound

question 10

Multiple Choice

A certain glass window reduces the intensity level of the sound from 72 dB to 47 dB. By what factor is the acoustic power reduced by this glass window?

• A) \(1.5 \times 10 ^ { - 1 }\)
• B) \(5.6 \times 10 ^ { - 2 }\)
• C) \(3.2 \times 10 ^ { - 3 }\)
• D) \(1.0 \times 10 ^ { - 1 }\)
• E) \(2.2 \times 10 ^ { - 2 }\)

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Definitions:

Wage Rate

The amount of money paid to an employee per unit of time or output, commonly expressed as an hourly rate.

Diminishing Marginal Product

The property whereby the marginal product of an input declines as the quantity of the input increases.

Production Function

An equation that describes the relationship between the inputs a firm uses and the output it produces.

Computer Programmers

Individuals who write, test, and maintain the code that allows computer applications and software programs to function properly.