Radio Telescopes The antenna of a radio telescope is a
Chapter , Problem 5.1.40(choose chapter or problem)
Radio Telescopes The antenna of a radio telescope is a parab- (0, 0) oloid measuring 81 feet across with a depth of 16 feet. Determine, to the nearest tenth of a foot, the distance from the vertex to the focus of this antenna. Paraboliccross section81 ft16 ft
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