Physics, 06.12.2019 20:31 Svetakotok
Ahot‐air balloon stays aloft because hot air at atmospheric pressure is less dense than cooler air at the same pressure. if the volume of the balloon is 500.0 m3 and the surrounding air is at 15.0°c, what must the temperature of the air in the balloon be for it to lift a total load of 290 kg (in addition to the mass of the hot air)? the density of air at 15.0°c and atmospheric pressure is 1.23 kg/m3 .
Answers: 2
Physics, 22.06.2019 06:30
At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid
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Ahot‐air balloon stays aloft because hot air at atmospheric pressure is less dense than cooler air a...
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