Question: A circular radar antenna on a Coast Guard ship has a diameter of 2.10m and radiates at a frequency of 15.0 GHz. Two small boats

A circular radar antenna on a Coast Guard ship has a diameter of 2.10m and radiates at a frequency of 15.0 GHz. Two small boats are located 9.00 km away from the ship. How close together could the boats be and still be detected as two objects?

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