Gasoline flows through a horizontal pipeline with a flow rate of 25 ft 3 / min. A pressure gauge measures the pressure to be 315 lb/ft2 in a part of a pipeline with a diameter of 4.2. If the line expands to a pipe with a diameter of 6.5, calculate:
a) The flow speed in the larger pipe (ft/s)?
b) The pressure in this pipe (lbs/ft2)?