You Shout at a Cliff,and Hear Your Echo in 2

question 25

Multiple Choice

You shout at a cliff,and hear your echo in 2 seconds.If the speed of sound in the air is 340 m/s,the distance of the cliff from you is

• A)85 m.
• B)170 m.
• C)340 m.
• D)680 m.
• E)none of the above.

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Definitions:

Import Competition

The competition that domestic firms encounter from the products and services of foreign producers.

Trade Barriers

Regulations or policies implemented by countries to control the import and export of goods and services.

Import Quotas

Limits set by a government on the quantity or value of certain goods that can be imported into a country.

Domestic Producers

Companies or individuals that produce goods and services within their own country.