Water is moving with a speed of 5.4 m/s through a pipe with a cross-sectional area of 4.8 cm2. The water gradually descends 11 m as the pipe increases to 9.5 cm2.
(a) What is the speed at the lower level?
(b) If the pressure at the upper level is 1.7 × 105 Pa, what is the pressure at the lower level?