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Balloon is made up of elastic material. It is blown because of pumping air into it. Now the wall of the balloon gets stressed. Stress is nothing but the deforming force per unit area. Same way pressure is also the force per unit area. Hence the pressure inside the ballon would increase and become greater than the atomospheric pressure. So, as we allow the mouth to be in open condition, the air rushes out from higher pressure region to lower pressure region.
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∙ 12y ago
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Which gas do you use for hot air balloons?
Hot air is used for hot air balloons.
Why do balloons come closer when air is blown between them?
The wind between the balloons creates a lower pressure in the air, so the air around it pushes the balloons together.
What last longer helium fill balloon or hot air balloons?
hot air balloons
Why do rubber balloons lose air faster than plastic balloons?
plastic balloons lose air because particles are moving in the balloon and leave it
Which force allows hot air balloons to fly?
Buoyancy allows hot air balloons to fly.
What is something interesting about hot air balloons?
Hot air balloons have a device at the top called a parachute to let the hot air out, controlling their decent.
Why lighter than air balloons fly?
air balloons or hot air balloons fly because they fill with a very light type of air. The air is hot air.
Why does a balloon whistle when you let it go?
because when you let a balloon go, all the air comes out really fast and that's why balloons whistle when you let it go.
Which gas do you use for hot air balloons?
Hot air is used for hot air balloons.
How do hot air balloons descend?
They have to let out the hot air a little at a time.
What form is helium?
hot air balloons and balloons
Why do balloons come closer when air is blown between them?
The wind between the balloons creates a lower pressure in the air, so the air around it pushes the balloons together.
Why do hot air balloons travel upward?
The heated air causes the whole balloon to rise. When the air inside the balloon cools down, or when the hot air is let out, the balloon goes down.
What last longer helium fill balloon or hot air balloons?
hot air balloons
Where in the atmosphere do hot air balloons float?
Hot air balloons float because hot air displaces cool air in the atmosphere
Why do rubber balloons lose air faster than plastic balloons?
plastic balloons lose air because particles are moving in the balloon and leave it
What types of balloons are there?
there are many different types: hot air balloons, gas balloons, party balloons, weather balloons and many more complex types of balloons.
