In: Physics
The mass of a hot-air balloon and its cargo (not including the
air inside) is 220 kg. The air outside is at 10.0°C and 101 kPa.
The volume of the balloon is 490 m3. To what temperature
must the air in the balloon be warmed before the balloon will lift
off? (Air density at 10.0°C is 1.244 kg/m3.)
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