Review. The mass of a hot-air balloon and its cargo (not
Chapter 19, Problem 39(choose chapter or problem)
Review. The mass of a hot-air balloon and its cargo (not including the air inside) is 200 kg. The air outside is at 10.08C and 101 kPa. The volume of the balloon is 400 m3. To what temperature must the air in the balloon be warmed before the balloon will lift off? (Air density at 10.08C is 1.244 kg/m3.)
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