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Difference in specific mass per cubic deciliter, in a liquid or gas.
Mind you, there is more to it.
Nitrogen and oxygen have different specfic mass, yet they easily mix and do not so easealy separate. (how would we breathe air?)
What's more is more to it.
Heating air expands it, and when trapped (in a balloon) the average specific weight of the balloon becomes lighter than specific weight of the air outside the balloon.
Given the weight per Cubic meter cubed, one can see how one tonne can be lifted.
In Hot air baloons, the cloud effect plays a role too.
The hot vapour of the gasburner has a LOT water vapour in it. Warm air can hold more water vapour than cold air can. Water vapour is lighter than dry air is, and the mix will rise because the mix is lighter than heated dry air.
This also explains why hot air balloons can not get as high as helium balloons.
What else can I help you with?
What is the name of a force that pulls something down?
Gravity is the force that pulls objects down towards the center of the Earth. It is responsible for keeping our feet on the ground and objects from floating away into space.
How is gravity important for earth?
Gravity Pulls us Down on Earth. We would be Floating With Out it!
A force which pulls you down?
Gravity is the force that pulls objects towards each other, such as the force that pulls you down towards the Earth's surface.
What is a force which pulls you down?
Gravity is the force that pulls objects toward the center of the Earth.
Why does gravity stop things from floating?
Gravity is a fundamental force that pulls objects towards each other. When an object is floating, it is being supported by another force, such as buoyancy or air resistance, that counteracts gravity. If these supporting forces are removed or weakened, gravity will pull the object back down.
What is a force that pulls objects down to earth?
Gravity is the force that pulls objects down to Earth. It is a natural phenomenon by which all things with mass are brought towards one another.
Sentence for gravity?
The force of gravity pulls objects towards the Earth's center, keeping our feet on the ground and causing objects to fall when dropped.
Where does gravity pull people and objects?
On the earths surface gravity pulls you down.
Is the force of gravity that pulls down on an objects mass?
no it's wieght
Name the force that pulls objects down?
The force that pulls objects down is gravity. It is the natural phenomenon by which all objects with mass are brought toward one another.
How does gravity relate to a steam's ability to erode and deposit materials?
Gravity pulls down the water, if there was no gravity the water would be floating in the air.
Which force pulls everything down to earth?
The force that pushes downward on objects on earth is called gravity.
