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OpenStudy (anonymous):
12 . Why does a hot air balloon float? - the shape of the balloon provides lift - the volume of the air displaced by the balloon is less than the volume of the balloon -The weight of the air displaced is less than the volume of the balloon - the weight of the balloon is less than the weight of the air displaced by the balloon
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OpenStudy (anonymous):
the density of the balloon is small, what I mean is the weight of the balloon is small relative to the volume of the balloon. so I guess the answer would be the last one.
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