Question: A hot-air balloon must support its own weight plus a person for a total weight of 1300 N. The balloon material has a mass of

A hot-air balloon must support its own weight plus a person for a total weight of 1300 N. The balloon material has a mass of 60 g/m2. Ambient air is at 25°C and 1 atm. The hot air inside the balloon is at 70°C and 1 atm. What diameter spherical balloon will just support the weight? Neglect the size of the hot-air inlet vent.

A hot-air balloon must support its own weight

70C 25C 1300 N

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The buoyancy is due to the difference between hot and cold air density 101350 ... View full answer

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