A 3 cm long needle at the bottom of a tube connected to an IV bag is used. to inject a 125 mL of saline solution located h = 70 cm above the needle over a one hour period. The viscosity of the saline solution is 1.1 mPa.s and its density is 970 kg/m³. You may assume the resistance to flow and fluid speed in the bag and the tube is negligible - only the resistance across the needle needs to be taken into account. A. If the vein's gauge pressure is 5 mmHg, what will be the difference in the input and output pressures across the needle in both mmHg and Pa? B. What is the flow rate of the fluid, in S.I. unis? C. What is the radius of this needle in mm?

A 3 cm long needle at the bottom of a tube connected to an IV bag is used. to inject a 125 mL of saline solution located h = 70 cm above the needle over a one hour period. The viscosity of the saline solution is 1.1 mPa.s and its density is 970 kg/m³. You may assume the resistance to flow and fluid speed in the bag and the tube is negligible - only the resistance across the needle needs to be taken into account. A. If the vein's gauge pressure is 5 mmHg, what will be the difference in the input and output pressures across the needle in both mmHg and Pa? B. What is the flow rate of the fluid, in S.I. unis? C. What is the radius of this needle in mm?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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