How high is the balloon above standard sea level

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A weather balloon carries a mercury barometer in order to determine altitude as a function of flight time. At a particular moment, the barometer gives a reading of 476 mm. How high (in meters) is the balloon above standard sea level? (Assume mercury has a density of 13,600 kgm3, and approximate that dry air at any elevation has a constant density of 0.9 kgm3.)

Reference no: EM13703894

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