The volume of an airship is 2000m ~ 3, and its deadweight is 4900n. What is its maximum deadweight when it is launched? (air density = 1.29Kg / m3) (process)

The density of air is 1.29Kg per cubic meter, the m of air is 1.29 * 2000 = 2580kg, 2580kg * 9.8 = 25284n, 25284n-4900n = 20384n

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