|_ter 5.) Water flows in a vertical pipe of radius R = 5 mm. In the coordinates shown: (a.) solve for v.(r) in terms of dP/dz, y, R, p, & g [hint-use Eqn 6.121C and follow section 6.9.3 but with g added]; (b.) evaluate the flow rate down the pipe if dP/dz=0; (c.) evaluate the minimum value of dP/dz needed to stop the flow from going down the pipe; (d.) what value of dP/dz is required to have the flow go up the pipe at the same flow rate in part 'b.'?; (e.) what is the centerline (r = 0) speed for each of the systems described in (b), (c.), & (d.)? cole z