A horizontal pipe is shown and has an area of 40.0 cm2 in wide areas and 10.0 cm2 in narrow areas. It is also connected to a U shaped tube filled with mercury. water is flowing through the pipe at a rate of 5.00 L/s. Find (a) the flow speeds at the wide and narrow portions (b) the pressure difference between the two points (c) the height difference, h, between the mercury columns (density of mercury is 13.534 g/cm3.)