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BuBbLeS01
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Homework Statement
Under standard conditions, the density of air is 1.293 kg/m3 and that of helium is 0.178 kg/m3. A spherical helium balloon lifts a basket plus cargo of mass 269.0 kg. What must be the minimum diameter of the spherical balloon?
Homework Equations
p = F/A
The Attempt at a Solution
I don't know what equation to use to find F?