No.
A vaccum cannot have any air in it, or it isn't a vacuum
Heat is the energy of the hot air. Therefore hot air rises
Hot air is less dense than cooler air, therefore the balloon will rise (float) on the cooler air around it.
if you mean how the hot air in a hot air balloon makes it rise, its because hot air is less dense than cold air. when cold and hot air meet the cold air sinks thus making hot air left to rise.so when you put hot air in a balloon the air would rise. hope this helps.
The hot air from the burner rises since it has little density, and then is caught in the balloon, which causes it to rise.
Hot air is less dense compared to cold air. The heated air in the balloon will rise, making the balloon float in the air.to make it rise.
Heat is the energy of the hot air. Therefore hot air rises
A hot air balloon rises because when hot air is added it is intended to rise and when the hot air balloons wants to land, hot air is decreased.
Hot air is lighter than cold air, so cold air sinks and hot air rises; that makes the hot air balloon rise (if the air around the hot air balloon is heated as well, it won't rise, or sink if in the air).
Hot air rises
Hot-air balloons can rise up into the air because hot air is lighter, allowing it to float up into the sky.
Hot air is less dense than cooler air, therefore the balloon will rise (float) on the cooler air around it.
Hot air
to make a hot air balloon rise you use hot air
if you mean how the hot air in a hot air balloon makes it rise, its because hot air is less dense than cold air. when cold and hot air meet the cold air sinks thus making hot air left to rise.so when you put hot air in a balloon the air would rise. hope this helps.
if you mean how the hot air in a hot air balloon makes it rise, its because hot air is less dense than cold air. when cold and hot air meet the cold air sinks thus making hot air left to rise.so when you put hot air in a balloon the air would rise. hope this helps.
The hot air from the burner rises since it has little density, and then is caught in the balloon, which causes it to rise.
Hot air rises and cold air falls.