Hot air, hydrogen or helium are lighter than cold air.
Hot air, hydrogen or helium are lighter than cold air.
bcoz helium is lighter than air
Helium is lighter than air.
Balloons filled with it float in air
Because helium is lighter than air.
Helium.
Lighter-than-air balloons are aircraft that achieve buoyancy and rise in the atmosphere by being filled with gases that are less dense than the surrounding air, such as helium or hot air. These balloons rely on the principle of buoyancy, where the lighter gas displaces a greater weight of air, allowing them to float. Common types include hot air balloons, which use heated air, and gas balloons, which are filled with helium or hydrogen. They are often used for recreational purposes, scientific research, and advertising.
Helium is lighter than air. so balloons filled with helium will float in air
Helium is lighter than air, so a balloon filled with helium will float. In contrast, air-filled balloons will sink because the density of air is greater than that of helium. Additionally, helium balloons will deflate faster than air-filled balloons due to its smaller molecular size.
They're filled with Helium.
No, hot air balloons are typically filled with hot air to become buoyant and rise. Helium is an alternative gas used in some balloons, like party balloons or weather balloons, due to its lighter weight than air.
Helium is lighter than air. So balloons or air ships filled with helium will float.