An engineer is performing some laboratory studies and wishes to puta constant water flow rate of into a reactor. This is a very low flowrate and and she has trouble finding a pump that is accurate andsteady. She devises a system in which a reservoir is filled withwater and a piston is placed on top. A weight is placed on top ofthe piston so the pessure in the reservoir is a constant 2.346 Pa.The liquid flows out of the reservoir through a 0.0005-m-diametercapillary tube into the reactor. The reactor pressure is 1.000 Pa.What is the required length of the capillary tube to achieve thedesired flow?

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