Biology, 17.09.2019 17:30, hannaboo53

Why does a hot air balloon float?
1. the shape of the balloon provides lift.
2. the volume of the air displace by the balloon is less than the volume of the balloon.
3. the weight of the air displaced is less than the volume of the balloon.
4. the weight of the balloon is less than the weight of the air displaced by the balloon.

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Why does a hot air balloon float?
1. the shape of the balloon provides lift.
2. the vol...

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