11. (Problem 6-33) Determine the power input required for the tank designed in Problem #4 if the water temperature is 20 °C and the velocity gradient is 700 s' (in W and in hp). The following three problems are adapted from “Fundamentals of Engineering (FE) Sample Questions" by National Council of Examiners for Engineering and Surveying (NCEES), 1996).

Fig: 1

Fig: 2