$2-$ A desktop computer will be cooled by a fan with a volumetric flow rate of $0\mathrm{.}34m\frac{3}{?}$ minute. Determine the mass flow rate passing through the fan at an altitude of $3400m$ where the air density is $0\mathrm{.}7k\frac{g}{m}3.$ Also, since the average speed of the air is not wanted to exceed $110\frac{m}{?}$ minute, determine the outer diameter of the fan. $(20$P$)$ Assumptions: The flow in the fan is continuous: Features: Air density at high altitude is given as $0\mathrm{.}7k\frac{g}{m}3.$