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Broadcasters use a parabolic microphone on football sidelines to pick u...
Mathematics, 01.04.2020 16:27 Milosmom
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Broadcasters use a parabolic microphone on football sidelines to pick up field audio for broadcasting purposes. a certain parabolic microphone has a reflector dish with a diameter of 10 inches and a depth of 2 inches. if the receiver of the microphone is located at the focus of the reflector dish, how far from the vertex should the receiver be positioned?
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