A Radar Receiver Indicates That a Pulse Return as an Echo

question 57

Multiple Choice

A radar receiver indicates that a pulse return as an echo in $20 \mu \mathrm { s }$ after it was sent. How far away is the reflecting object? $\left( c = 3.0 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s } \right)$

• A) \(6.0 \mathrm {~km}\)
• B) \(9.0 \mathrm {~km}\)
• C) \(3.0 \mathrm {~km}\)
• D) \(1.5 \mathrm {~km}\)

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Definitions:

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The set of moral principles and standards that guide behavior and decision-making based on notions of right and wrong.

Generations

Groups of people born and living around the same time, known for having shared experiences that shape their worldview.

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Something that depends on cultural context or varies according to different cultural practices and beliefs.

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The actions, practices, and attitudes exhibited by a leader to influence and guide a group towards achieving its goals.