It's a three part question...Theres not any additional imformation.It's a question I need answered.[1][How fast does hot air rise in the atmosphere]?[2]Does hotter air rise faster?[3] What is the average rate of cooling when hot and cold air mix,the average temperature drop?
Hot air balloons float because hot air displaces cool air in the atmosphere
AS fast as the air stream it in is going.
Hot air always rises, because it is less dense.
No
stratosphere
Hot air balloons float because hot air displaces cool air in the atmosphere
Because it is lighter than cooler air.
AS fast as the air stream it in is going.
a hot air balloon only works using thermals, which are currents of hot air rising because one area is heated more than the others. so hot air balloons depend on air to keep it airborne, specifically hot air. once it leaves the earths atmosphere, it is a vacuum. there is no air, so the hot air balloon will fall back into the earth. hence, we see that hot air balloons cannot leave the earth's atmosphere.
Hot air always rises, because it is less dense.
No set answer to that, it depends on how much the balloon has to lift.
No
Yes, hot air rises, cold air falls.
The hot air has a density under the density of cold air. And so up in the atmosphere.
stratosphere
Troposphere
stratosphere