water flow dowen a sloping pipe.the pipe tapers from 2m diameter at the top (A)to 1.4 diameter at the bottom (B)the volume flow rate is 23m/s.

1)calculate the velocities of the flow at points A and B.
2)if the end A is 12m higher than end B, and the presure A is 200kpa what is the presure at point B?