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A 0.775-m rigid tank initially contains air whose density is 1.18 kg/m3. The tank is connected to a high-pressure supply line through a valve.

A 0.775-m rigid tank initially contains air whose density is 1.18 kg/m3. The tank is connected to a high-pressure supply line through a valve. The valve is opened, and air is allowed to enter the tank until the density in the tank rises to 4.95 kg/m. Determine the mass of air that has entered the tank. The mass of air that has entered the tank is determined to be kg.

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