1) A submarine has a total mass of 2.19 106 kg, including crew and equipment. The vessel...

1) A submarine has a total mass of 2.19 10⁶ kg, including crew and equipment. The vessel consists of two parts, the pressure hull, which has a volume of 2.00 10³ m³, and the ballast tanks, which have a volume of 5.10 10² m³. When the boat cruises on the surface, the ballast tanks are filled with air at atmospheric pressure; to cruise below the surface, seawater must be admitted into the tanks. (Neglect the mass of air in the tanks and use 1.025 as the specific gravity of seawater.)

(a) What fraction of the submarine's volume is above the water surface when the tanks are filled with air?
%

(b) How much water must be admitted into the tanks to give the submarine neutral buoyancy?
m³

²⁾ A 59-g ball consists of a plastic spherical shell and a water-filled core. the shell has an outside diameter equal to 46.6 mm and an inside diameter equal to 16.0 mm. What is the density of the plastic?
kg/m³

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genius_generous answered 1 year ago

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