Question 2: Water at 20C (density, =998kg/m3; absolute viscosity, =1.12103N.s/m2 ) from large reservoir to a small reservoir through a pipe with a length of 10.2m. The pressure difference impressed through is 37162Pa. An engineer wants to compare the cost of pumping in two scenarios: Case 1: What if water is pumped through a horizontal pipe with a radius of 2.16cm. Case 2: What if water is pumped in the annulus region, between inner and outer cylinder (the radius of inner and outer cylinder is ri=2.16cm and ro=3.8cm, respectively. Which pumping configuration can you suggest? Please verify your answer with calculations