Question: An intravenous (M system is supplying saline solution to a patient at the flow rate of 0.120 cm-/s through a needle of radius 0, 150

An intravenous (M system is supplying saline solution to a patient at the flow rate of 0.120 cm-/s through a needle of radius 0, 150 mm and length 2: 50c. What pressure is needed at the entrance of the needle to cause this flow, assuming the viscosity of the saline solution to be the same as that of water (n- 1:10 Pas? The gauge pressure P, of the blood in the patient's vein is 8 00 mm Hg (1.066-10 N/m ). (Assume laminar flow that the temperature is 20 C.)

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