6 (15 points) A sewage starts at a depth of 8 meters, and angles up to a depth of 3 meters. The pipe also changes size as it does so. It gradually necks down from a cross section of 0.50 meters to 0.25 meters. The density of this sewage is the same as water 1000kg/m' The velocity in the large part of the pipe is 3 meters/sec. The initial pressure (on the large pipe) is 150000 Pa (150 KPa = 21.5 psi) a What happens to the speed of the sewage. b What happens to the pressure