In estimating pressure drops across the arterioles, assuming a specific number of arterioles with the same diameter and length: a. Assume that all arterioles have the same radius, but the length becomes 1.2 L (with equal probability throughout). To what factor will it change the overall resistance of the arteriole system? b. Assume that all arterioles have the same length, but the radii decreased to a factor of 0.8 r (with equal probability throughout). To what factor will it change the overall resistance of the arteriole system?

In estimating pressure drops across the arterioles, assuming a specific number of arterioles with the same diameter and length: a. Assume that all arterioles have the same radius, but the length becomes 1.2 L (with equal probability throughout). To what factor will it change the overall resistance of the arteriole system? b. Assume that all arterioles have the same length, but the radii decreased to a factor of 0.8 r (with equal probability throughout). To what factor will it change the overall resistance of the arteriole system?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter12: Fluid Dynamics And Its Biological And Medical Applications

Section: Chapter Questions

Problem 46PE: Water supplied to a house by a water main has a pressure of 3.00105 N/m2 early on a summer day when...

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Water supplied to a house by a water main has a pressure of 3.00 X 105 N/m2 early on a summer day when neighborhood use is low. This pressure produces a flow of 20.0 L/min through a garden hose. Later in the day, pressure at the exit of the water main and entrance to the house drops, and a flow of only 8.00 L/min is obtained through the same hose. (a) What pressure is now being supplied to the house, assuming resistance is constant? (b) By what factor did the flow rate in the water main increase in order to cause this decrease in delivered pressure? The pressure at the entrance of the water main is 5.00 X 105 N/m2, and the original flow rate was 200 L/min. (c) How many more users are there, assuming each would consume 20.0 L/min in the morning?
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Water supplied to a house by a water main has a pressure of 3.00105 N/m2 early on a summer day when neighborhood use is low. This pressure produces a flow of 20.0 L/min through a garden hose. Later in the day, pressure at the exit of the water main and entrance to the house drops, and a flow of only 8.00 L/min is obtained through the same hose. (a) What pressure is now being supplied to the house, assuming resistance is constant? (b) By what factor did the flow rate in the water main increase in order to cause this decrease in delivered pressure? The pressure at the entrance of the water main is 5.00105 N/m2, and the original flow rate was 200 L/min. (c) How many more users are there, assuming each would consume 20.0 L/min in the morning?
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Water supplied to a house by a water main has apressure of 3.00×105 N/m2 early on a summer day whenneighborhood use is low. This pressure produces a flow of20.0 L/min through a garden hose. Later in the day, pressureat the exit of the water main and entrance to the house drops,and a flow of only 8.00 L/min is obtained through the samehose. (a) What pressure is now being supplied to the house,assuming resistance is constant? (b) By what factor did theflow rate in the water main increase in order to cause thisdecrease in delivered pressure? The pressure at the entranceof the water main is 5.00×105 N/m2 , and the original flowrate was 200 L/min. (c) How many more users are there,assuming each would consume 20.0 L/min in the morning?