pls read the question

A computer contains 8 PCBs, each dissipating 20 W of power. The height of each PCB is 12 cm and its length is 18 cm. Cooling is provided by moving fluid at the inlet which exits at the outlet. You are to select between two types of moving fluid (1) air or (2) water. Air is pushed through the computer by a 25 W fan mounted at the inlet and water is pumped through the computer by a 25 W pump mounted at the inlet. 0 - W = Scy e p dv + Scs (n + m2 + gz) p V .d where e = u + V + gz V2 h Using the above equations as starting points, and if the rise in fluid temperature must not exceed 10 "C. (a) What are any valid assumptions? (b) what is the dissipation by the PCBs? (C) what is the mass flow rate of water? (d) what is the mass flow rate of air? (e) which fluid has a slower mass flow rate? and (t) based on this equation o rico (ar) + w how can we dissipate more heat per unit mass of a flowing media