56.mmh (a) The volume flow rate in an artery supplying the brainis 3.6 x 10-6 m³/s. If the radius of the artery is 5.2 mm, de-termine the average blood speed. (b) Find the average blood speed at aconstriction in the artery if the constriction reduces the radius by a factorof 3. Assume that the volume flow rate is the same as that in part (a).

Given: The volume flow rate is Q=3.6×10-6 m3/s. The radius of artery is r=5.2 mm. (a) The…

Answered: 56. mmh (a) The volume flow rate in an…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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2) Find only the value of the volume flow rate of the petroleum along the pipe. Part (A) only.
Using the appropriate equations, predict the effects in each scenario. a. Vessels X and Y have the same diameter. X is 5 cm long and Y is 10 cm long. Which has the faster velocity of flow for the same fluid? b. A blood vessel has a radius of 4 cm. Vasoconstriction reduces the radius to 1 cm. In order to maintain the same flow, by what factor must pressure increase? c. The blood vessel in B above dilates from 1 cm to 4 cm. Does the flow rate increase or decrease?
A fluid system has two sensors, a pressure sensor and a flow sensor. The pressure sensor has two outputs 'AB' that define three levels: '00' if pressure is low, '01' and '10' if pressure is medium, and '11' if pressure is high. The flow sensor has one output 'C' defining two levels: '0' if flow is low, and '1' if flow is high. The combination of all outputs is used to decide if a valve should be closed 'V=0' if pressure is high, or if flow is low and pressure is not low. Otherwise, the valve should be opened *V=1'. You are assigned the task to design the circuit that makes this decision. (3-a) Is this an analogue or digital electronic problem? Explain the difference. (3-b) What is the benefit of using digital circuits for the abovementioned scenario? Explain. (3-c) Apply your knowledge of Boolean logic to form the truth table. (3-d) Write down the sum-of-products expression that represents the output. (3-e) Draw the circuit diagram for the given scenario, then verify its operation…
Q1: The water in a tank is pressurized by air, and the pressure is measured by a multi-fluid manometer, as shown in the figure. Determine the gage pressure of air in the tank if hi = 0.2 m, h2 = 0.3 m and h3 = 0.46 m. Specific gravities: oil=0.85 and mercury= 13.6 Oil Air Water Mercury h, Solution:
This is a practice problem
The height h that a fluid will rise in a capillary tube decreases as the diameter D of the tube increases. Use dimensional analysis to determine how h varies with D, with the specific weight w, the surface tension o of the liquid, and the gravitational acceleration g. O A. h = D² f(oD-'w=1) B. h = D f(oD-w-2) O C. h = D f(o²D-{w-1) D. h = D f(GD-2w=1)
Which is not a reason why the blood pressure meter cuff is placed in the left arm? Choices: Because it has the same pressure as the heart since it belongs to the same horizontal Because it has the brachial artery which pulse is comparable to the heart Because it is nearest to the heart compared to other parts Because it is the most convenient part of the patient
3. What is the laminar flow rate of water in a pipe with an internal radius of r and a length of L m if the pressure difference across the pipe is 2.0 kPa? The water in the pipe has a viscosity of approximately 0.6 mPa-s. let r =2.5 cm let L=0.5m Describe the effect on the flow rate given each of the following changes. Each change is to the original system and all other variables are held constant. The radius decreases The pipe length decreases The fluid viscosity decreases The pressure difference decreases
A viscous fluid flows in two different pipes. Pipe 1 has a radius r1, and Pipe 2 has a radius r2. If both pipes have the same length and r1 > r2, choose the correct statement about the pressure difference of the fluid in Pipe 1 and Pipe 2 The pressure difference of the fluid is the same in Pipe 1 and Pipe 2. The fluid in Pipe 1 has larger pressure difference. It cannot be determined in which pipe the fluid has larger pressure difference. The fluid in Pipe 2 has larger pressure difference.
15
Topic: CONTINUITY EQUATION, BERNOULLI’S EQUATION & TORRICELLI’S THEOREM Suppose that a person afflicted with COVID-19 has an enlarged portion of artery with a cross-sectional area 40% bigger than the normal. What is the speed of the blood through this enlarged artery?
J. If the radius of a pipe narrows to half of its original size, what is the ratio of the flow speed in the narrow section to that in the wide section, assuming the same flow rate? Solution: V₁ = speed in narrow section V2 = speed in wide section A1 V₁ = A2 V2 V₁/V₂ = A₂/A1 = π (r/2)²/nr² V1/V2 = 14 SAQ 1. A 75 kg person's density changed from 970 kg/m³ to 990 kg/m³. Calculate the person's percent change in volume. 2. A 4 kg mass is supported by a copper wire of length 1.5 m and diameter of 2 mm. How much will the wire be stretched? Young Modulus for copper is 11 x 10 10 N/m². 3. If the radius of a pipe narrows to one-fourth of its original size, what is the ratio of the flow speed in the narrow section to that of the wide section, assuming the same flow rate. What is the pressure at the bottom of the swimming pool & feet deep that is filled with fresh water. Density of fresh water is 1000 kg/m³. 4. 5. Archimedes found that the King's crown had a mass of 770 g and a volume of 3.98x10-5…

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