How Does the Seismic Tomography Method Work

question 62

Multiple Choice

How does the seismic tomography method work?

• A) large pieces of rock are put inside a medical device and x-rayed to see what is inside
• B) large pieces of rock are put inside a medical device and subjected to seismic waves
• C) some seismic waves coming from different directions arrive faster or slower than expected
• D) seismic instruments are set up on different sides of a small hill to measure the elevation

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Definitions:

Long Run

A time period long enough to allow the firm to vary all of its factors of production.

Price Searchers

Firms that face a downward-sloping demand curve for their product. The amount the firm is able to sell is inversely related to the price it charges.

Price Takers

Sellers who must take the market price in order to sell their product. Because each price taker's output is small relative to the total market, price takers can sell all their output at the market price, but they are unable to sell any of their output at a price higher than the market price.

Market Demand

The total demand for a product or service in a market, summing up individual demands at each price level.