Consider a Vibrating String That Makes a Sound Wave That

question 6

Multiple Choice

Consider a vibrating string that makes a sound wave that moves through the air.As the guitar string moves up and down,the air molecules that are a certain horizontal distance from the string will move

• A)up and down.
• B)toward and away from the guitar string.
• C)back and forth along the direction of the length of the string.
• D)in circles around the guitar string.

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Definitions:

ATC Curve

The Average Total Cost curve graphically represents the total cost per unit of output produced, calculated by dividing the total cost by the quantity of output.

Economic Profits

The total revenue of a business minus its explicit and implicit costs; it’s a measure of excess above the normal levels of profits businesses earn in a competitive environment.

Long-Run Equilibrium

A state in which supply equals demand, all firms are maximizing profits, and there is no incentive for market entry or exit.

Efficient Output

The level of production at which a firm or economy can produce the maximum amount of goods at the lowest possible cost.