Asked by Alter
A party balloon with a radius of 12.5 cm is filled with helium. How much weight can this balloon lift? Neglect the weight of an empty balloon. (density of air = 1.29 kg/m3, density of helium = 0.178 kg/m3)
Answers
Answered by
oobleck
volume of air displaced is v = 4/3 πr^3
weight = mg = volume*density * g
now subtract the weight of the balloon from that of the displaced air.
weight = mg = volume*density * g
now subtract the weight of the balloon from that of the displaced air.
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