Question: In scuba diving circles, an 80 refers to a scuba tank that holds 80 cubic feet of air, a standard amount for recreational diving. Given

In scuba diving circles, "an 80" refers to a scuba tank that holds 80 cubic feet of air, a standard amount for recreational diving. Given that a scuba tank is a cylinder 2 feet long and half a foot in diameter, determine

(a) The volume of a tank and

(b) The pressure in a tank when 80 cubic feet of air is compressed into its relatively small volume.

(c) What is the mass of air in a tank that holds 80 cubic feet of air? Assume the temperature is 21 °C and that the walls of the tank are of negligible thickness.

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