Question: Please include all step, calculation , conversions. A spherical Chinese surveillance balloon was recently observed flying over the United States. The balloon was reported to

Please include all step, calculation , conversions.

A spherical Chinese surveillance balloon was recently observed flying over the United States. The balloon was reported to have a diameter of 90ft and to be at an altitude of 60,000ft. The balloon was probably filled with helium. a) For ideal gas behavior, the density of helium He at this altitude can easily be found by multiplying the density of air Air by the ratio of the molecular weights (MWHe=4.0lbm/lbmol;MWWAir=28.8lbm/lbmol). Using properties of the standard atmosphere (Appendix G), find He in slugs /ft3. Determine the weight of the gas in the balloon. b) Estimate the maximum payload weight that the balloon could carry

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