A Radio Transmitter Is Operating at an Average Power Of 4.00

question 3

Multiple Choice

A radio transmitter is operating at an average power of $4.00 \mathrm {~kW}$ and is radiating uniformly in all directions. What is the average intensity of the signal $8.00 \mathrm {~km}$ from the transmitter?

• A) \(2.49 \mu \mathrm { W } / \mathrm { m } ^ { 2 }\)
• B) \(0.00497 \mathrm {~W} / \mathrm { m } ^ { 2 }\)
• C) \(0.00249 \mathrm {~W} / \mathrm { m } ^ { 2 }\)
• D) \(4.97 \mu \mathrm { W } / \mathrm { m } ^ { 2 }\)

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Definitions:

Noble Goals

High-minded objectives or aspirations that are morally dignified or of high moral character.

Unpleasant Emotions

Feelings that are often considered negative and undesirable, such as sadness, anger, fear, or frustration.

Destructive

Causing great and irreparable harm or damage.

Defense Mechanisms

Psychological strategies used by individuals unconsciously to protect themselves from anxiety arising from unacceptable thoughts or feelings.