The tank in Fig. E3.5 is being filled with water by two one-dimensional inlets. Air is trapped at the top of the tank. The water height is h. (a) Find an expression for the change in water height dh/dt. (b) Compute dh/dt if D1=1 in, D2=3 in, V1=3 ft/s, V2=2 ft/s, and At=2 ft2, assuming water at 20°C.