A Radar Unit Operates at a Wavelength of 4 $3.0 \times 10 ^ { 8 }$

question 22

Multiple Choice

A radar unit operates at a wavelength of 4.2 cm. Radar waves travel at the speed of light, which is $3.0 \times 10 ^ { 8 }$ . What is the frequency of the radar waves?

• A) 7.1 \(\times 10 ^ { 6 }\) Hz
• B) 7.1 \(\times 10 ^ { 9 }\) Hz
• C) 6.7 \(\times 10 ^ { 9 }\) MHz
• D) 7.1 \(\times 10 ^ { 9 }\) MHz
• E) 6.7 \(\times 10 ^ { 9 }\) Hz

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Definitions:

Voluntarily Pay

Refers to making a payment or contribution freely without coercion, typically in contexts where payments are not legally mandated.

Marginal Cost

The incremental cost of producing an extra unit of a good or service.

Rivalry

(1) The characteristic of a private good, the consumption of which by one party excludes other parties from obtaining the benefit; (2) the attempt by one firm to gain strategic advantage over another firm to enhance market share or profit.

Excludability

The characteristic of a private good, for which the seller can keep nonbuyers from obtaining the good.