Apipe carrying water from a tank 18.0 m tall must cross 3.05 102 km of wilderness to reach a remote town. find the radius of the pipe so that the volume flow rate is at least 0.0500 m3/s. (use the viscosity of water at 20°c, 1.0 ✕ 10−3 n · s/m2.)

2.165 cm

Explanation:

= Density of water = 1000  kg/m³

g = Acceleration due to gravity = 9.81 m/s²

h = Height of tank = 18 m

P = Pressure =

Q = Flow rate = 0.05 m³/s

= Viscosity of water =

r = Radius of pipe

From Poiseuille's Law we have

The radius of the pipe should be 2.165 cm

mistakes are ok

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