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An airplane is in supersonic flight at an altitude h At what smallest distance a...

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An airplane is in supersonic flight at an altitude h At what smallest distance a along the horizontal from the observer on the ground is there a point from which the sound emitted by the airplane motors reaches to the observer earlier than sound emitted by plane when it is at point A that is directly above the observer Up velocity of airplane Us velocity of sound S a Question Type Single Correct Type A h O

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