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A spherical balloon of 11 m in diameter is filled with helium of gas constant, R...

A spherical balloon of 11 m in diameter is filled with helium of gas constant, R = 2.0771 kJ/kg.K at T = 15 oC and P = 100 kPa. If the balloon is used to lift load in the air of 1.25 kg/m3 density, how much load in Newtons (in addition to its own weight) can the balloon carry. Ignore drag force and weight of the balloon’s fabric? (Volume of a sphere = 4 3 ??^3 ).

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Solution d = 11 mer Rrie / 2.0771 KI Как T=15°C = 298 K P=100kPa = 1.25kg air m E J. W Ballon & FB tutte Wpayload [ Weight FB

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