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An executive jet aircraft is in a rapid climb in a standard atmosphere. It's time rate of change of altitude is 15 ft/s. a) At the instant is passes through an altitude of 20,000 ft above sea level, what are the temp, pressure, and density of the surrounding air? b) At the instant is passes through an altitude of 20,000 ft above sea level, what are the time rate of change of the temp, pressure, and density surrounding the air?

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