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:

Specific Tax

A tax that is levied as a fixed amount per unit on a particular good or service.

Inelastic Demand

A situation where demand for a product or service is relatively unmoved or less sensitive to changes in price.

Elastic Supply

A situation where the quantity of a good supplied by producers changes significantly in response to a small change in price.

Tax Burden

The measure of taxes paid as a proportion of income or the overall economic impact of taxes on an individual or business.