(Buoyancy) A hot-air balloon weighs 490 lb, including the weight of the balloon, the basket, and one person. The air outside the balloon has a temperature of 79 °F, and the heated air inside the balloon has a temperature of 149 °F. Assume the inside and outside air to be at standard atmospheric pressure of 14.2 psia. (a) Determine the required volume of the balloon to support the weight. (b) If the balloon had a spherical shape, what would be the required diameter? (a) V = i (b) d = i eTextbook and Media Save for Later ft3 ft Attempts: 0 of 3 used Submit Answer

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