A Crying Baby Emits Sound with an Intensity of 8

question 61

Multiple Choice

A crying baby emits sound with an intensity of 8.0 × 10^-8 W/m².Calculate a reasonable estimate for the intensity level from a set of quintuplets (five babies) ,all crying simultaneously at the same place? The lowest detectable intensity is 1.0 × 10^-12 W/m².

• A)79 dB
• B)69 dB
• C)56 dB
• D)49 dB
• E)36 dB

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Definitions:

Economic Profits

Profits calculated by subtracting both explicit and implicit costs from total revenue, capturing the true economic value created.

Opportunity Costs

A concept in economics that describes the potential benefits that an individual, investor, or business misses out on when choosing one alternative over another.

ATC

Average Total Cost is the sum of all production costs divided by the quantity of output produced.

Perfectly Competitive Firm

A theoretical business entity in a market where no single company can influence the price of goods or services, and where all products are identical.