A helium balloon (in the shape of a sphere) has radius 7.10 m .
For the density of air, please use 1.29 kg/m^3, and for Helium, use .179 kg/m^3
Homework Answers
Mass of air displaced by balloon = 4/3 * pi * 7.13 x
1.29kg/m^3 = 1934kg = Mass of loaded balloon
Mass of unloaded balloon = 930kg + 4/3 * pi * 7.13 x
0.179 kg/m^3 = 1198kg
Mass that balloon can lift = Mass of loaded balloon - Mass of
unloaded balloon = 1934kg - 1198kg = 736kg
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