Water flows from a very large tank through a 5-cm-diameter tube. The dark liquid in the manometer is mercury (SG = 13.6). Estimate (a) the velocity in the pipe and (b) the rate of discharge from the tank. Assume the flow is frictionless. 4.1 m 75 cm 5 cm Flow 17 cm Mercury (a) V = (b) Q m/s m³/s Fig. P6.52