A hot air balloon is in the air,
∴ The volume of the discharged air is equal to the volume of the hot air balloon, that is, row V =v,
∴ The volume of air released by hot air balloon becomes larger,
∫F float =ρair v row g，
A hot air balloon floats by air;
Heat released by complete combustion of natural gas:
Q amplifier = MQ = 2kg× 4.4x107j/kg = 8.8x107j;
During the ascent of the hot air balloon, there is no position change between the airbag and the hanging basket, and the airbag is static relative to the hanging basket.
So the answer is: bigger, 8.8× 107, hanging basket.