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Mathematics, 16.03.2020 20:09, kaylaamberd
A plane is flying horizontally at an altitude of 21000 feet with a ground speed of 875 feet per second. the plane passes directly over an observation tower at sea level. a spectator in the observation tower looks straight up to see it flying over but then lowers their gaze to follow the plane. at what rate is the angle of elevation of the spectator's line of sight changing 8 seconds after the plane has passed overhead?
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A plane is flying horizontally at an altitude of 21000 feet with a ground speed of 875 feet per seco...
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