A spherical balloon is made from an amount of material
Chapter , Problem 30(choose chapter or problem)
A spherical balloon is made from an amount of material whose mass is 3.00 kg. The thickness of the material is negligible compared to the 1.50-m radius of the balloon. The balloon is fi lled with helium (He) at a temperature of 305 K and just fl oats in air, neither rising nor falling. The density of the surrounding air is 1.19 kg/m3 . Find the absolute pressure of the helium gas.
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