A Doppler Red Shift Indicates

question 93

Multiple Choice

A Doppler red shift indicates

• A) a shift toward lower frequencies.
• B) a shift toward longer wavelengths.
• C) that a light source is receding relative to the observer.
• D) all of these.

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Definitions:

Tariff

A tax imposed by a government on goods and services imported from other countries, often used to protect domestic industries from foreign competition.

International Trade

International Trade involves the exchange of goods and services across international boundaries, driven by the principles of comparative advantage and market demand.

Tariffs

Taxes imposed by a government on imported goods.

Comparative Advantage

The capacity of a nation or company to generate a specific product or service with a smaller opportunity cost compared to its rivals.