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Why does helium balloon float in air 9th standard Note |
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Answer» Answer: The buoyancy force STILL just depends on the density of the air and the volume of the OBJECT. So, why does a helium balloon float? The only thing SPECIAL about a helium GAS is that it has a significantly lower density than air (with a density of 0.179 kg/m3 for helium and 1.2 kg/m3 for air) |
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