Multiple Choice
A 0.25 kg balloon is filled with helium. If the balloon is a sphere with a radius of 4 m, what is the maximum number of standard men it can lift? (Note: The density of air is ñair = 1.20 kg/m3 and of helium ñhelium = 0.179 kg/m3; standard man has a mass of 70 kg.)
A) 3 standard men
B) 4 standard men
C) 6 standard men
D) 38 standard men
Correct Answer:
Verified
Correct Answer:
Verified
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