Water is to be pumped at a rate of 100 gpm from a well that is 100 ft deep, through 2 mi of horizontal 4 in. sch 40 steel pipe, to a water tower that is 150 ft high. (a) Neglecting fitting losses,...

Water is to be pumped at a rate of 100 gpm from a well that is 100 ft deep, through 2 mi of horizontal 4 in. sch 40 steel pipe, to a water tower that is 150 ft high.

(a) Neglecting fitting losses, what horsepower will the pump require if it is 60% efficient?

(b) If the elbow in the pipe at ground level below the tower breaks off, how fast will the water drain out of the tower?

(c) How fast would it drain out if the elbow at the top of the well gave way instead? (d) What size pipe would you have to run from the water tower to the ground in order to drain it at a rate of 10 gpm?