The tank in the figure shown below is being filled with 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= 3cm, D2=5cm, V1= 1m/s, V2= 0.6 m/s and At= 0.2 m2, assuming water at 20°C.