We can use Archimedes' principle to calculate the buoyant force exerted on the storage tank. It, states that the buoyant force on an object immersed in a fluid is equal to the weight of the fluid displaced by the object.
Assuming standard atmospheric pressure and temperature (1 atm and 0°C), the density of air is 0.0785 lb/ft^3.
Hence, the weight of the air displaced by the tank = density x volume = 0.0785 lb/ft^3 x 1,900 ft^3 = 148.915 lb
Hence, the buoyant force exerted on the tank by the air is 148.915 lb.
