A Radar Receiver Indicates That a Pulse Return as an Echo

question 49

Multiple Choice

A radar receiver indicates that a pulse return as an echo in 20 μs after it was sent.How far away is the reflecting object? (c = 3.0 × 10⁸ m/s)

• A)1.5 km
• B)3.0 km
• C)6.0 km
• D)9.0 km

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Definitions:

Marginal Utility

The additional satisfaction or benefit (utility) that a consumer derives from purchasing one more unit of a good or service.

Marginal Utility

The additional satisfaction or utility received from consuming one more unit of a good or service.

Demand Schedule

A demand schedule is a table that lists the quantity of a good that consumers are willing to purchase at various prices.

Total Utility

The overall satisfaction or benefit a consumer receives from consuming a certain quantity of a good or service.