Part A- What is the speed of the air through the 2.0 cm section of tube? Part B- What is the pressure difference between both sections of the tube? Part C- what is the height "h" of mercury in the right side of the U-tube?

Air flows through the 4.0 mm tube at a speed of 120 m/s Assume that air is an ideal fluid. Note that Pair = 1.28 kg/m and PHg = 13600 kg/m . (Figure 1) Figure