The Loudness L of a Sound (Measured in Decibels, DB)

question 168

Short Answer

The loudness L of a sound (measured in decibels, dB) is inversely proportional to the square of the distance d from the source of the sound. A person who is 10 ft from a lawn mower experiences a sound level of 70 dB. How loud is the lawn mower when the person is 25 ft away?

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Definitions:

Natural Monopoly

A natural monopoly occurs when a single firm can supply a market's entire demand for a good or service at a lower cost than any potential competitor, often due to high fixed or startup costs.

Antitrust Law

Legislation aimed at preventing anti-competitive practices, monopolies, and fostering fair competition in the market.

Product Price

The financial cost at which a good or service is sold to consumers in the market.

Deregulation

The removal of most or even all of the government regulation and laws designed to supervise an industry. Sometimes undertaken to combat regulatory capture.