Answered: If the blood vessel due to plaque…

If the blood vessel due to plaque buildup narrows to 50% of its diameter, what must be the speed of blood through the narrowed diameter, when 50 cm/s is the speed through healthy diameter?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter1: Introduction And Vectors

Section: Chapter Questions

Problem 15P: Assume it takes 7.00 min to fill a 30.0-gal gasoline tank. (a) Calculate the rate at which the tank...

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L (a) The heart pumps blood into the aorta at a rate of 4 the aorta's diameter is 2.1 cm. Calculate the average speed of blood if min V blood = cm S (b) The aorta branches many times until the blood finally reaches the smallest branch: the capillaries. Each capillary has an average diameter of 6.9 μm and the blood slows down to 0.5 the number of capillaries in the body. Does this answer look reasonable? mm Calculate . S n = caps capillaries (c) For what duration of time is a red blood cell in a capillary if the average capillary length is 1 mm? t = (d) Why does the blood need to flow much slower through the capillaries than the aorta? ○ A. The capillaries are thin and might burst. ○ B. There must be sufficient time for the exchange of substances to occur across the cell membrane of the capillaries. O C. There is a smaller cross-sectional area. ○ D. None of these.
Suppose blood is pumped from the heart at a rate of 4.5 L/min into the aorta of radius 1.2 cm. Determine the speed of blood through the aorta, in centimeters per second. V?
When the rate of blood flow in the aorta is 5 liter/min, the velocity of the blood in the capillaries is about 0.33 mm/sec. If the average diameter of a capillary is 0.008 mm, calculate the number of capillaries in the circulatory system.
The flow rate of blood in the aorta is 80 cm^3/s, beyond the aorta, this blood travels throughabout 6 x 10^9 capillaries. If the radii of these capillaries is 8 x 10^-4 cm, what is the speed ofthe flow of blood through the capillaries?
Q1. a) In an adult, the aorta’s radius is normally 1.5 cm and blood moves through it at the average velocity of 30 cm/s. If a typical capillary vein has a constant radius of 5 x10-6m andblood passes through them with a velocity of 0.1 cm/s, approximately how many capillaries areneeded in a body? b) Benzene at 1 atm and 80⁰C enters the pipe system given in the below figure, with a Reynoldsnumber of 130000 and leaves the system at 60⁰C. Assuming that diameters of the pipes at theexit are equal to each other, calculate the Reynolds number on one of the exit pipes (density ofliquid benzene at 80⁰ C= 813 kg/m3and at 60⁰C = 835 kg/m3).
Given the average heart rate of a human is 7.00 beats per minute and the average volume flow of blood pumped out by the heart to the body is 70.0 mL/beat. (A) Determine the average flow rate for blood in units of milliliters per minute(mL/min) A person suffers a severe laceration that allows all the blood that is pumped out of the heart to be lost per beat, determine the time, in units of seconds it takes for a person to (b) lose all the blood from their body(assume the total volume of blood in the human body is 4.80L for parts (b), (c), and (d) (c) lose 20% of the total volume of blood in the body(at this point a person suffers hypovolemic shock) (d)lose 50% of the total volume of blood in the body( at this point the heart will stop pumping, organs begin to shut down, and the person might end upa comatose state given the person is saved due to medical intervention
The leaves of a tree lose water to the atmosphere via the process of transpiration. A particular tree loses water at the rate of 3 × 10-8 m3/s; this water is replenished by the upward flow of sap through vessels in the trunk. This tree’s trunk contains about 2000 vessels, each 100 μm in diameter. What is the speed of the sap flowing in the vessels?
The aorta is the main artery from the heart. I typical aorta has an inside diameter of 1.8 cm and can carry blood at a speed of 35 cm/s. What is the speed of blood at a point in the aorta where the artery has had its diameter reduced by 50% from build up of plaque.
Biological tissues are typically made up of 98% water. Giventhat the density of water is 1.0 * 103 kg/m3, estimate the mass of (a) theheart of an adult human; (b) a cell with a diameter of 0.5 mm; (c) a honeybee.
The human circulation system has approximately 1 × 109 capillary vessels. Each vessel has a diameter of about 8 μm a. Assuming the cardiac output is 5 L/min, determine the average speed, in centimeters per second, of blood flow through each capillary vessel.
Blood is pumped from the heart at a rate of 5.86 L/min into the aorta (of radius 1.2 cm) determine the speed of blood (in cm/s) through the aorta.
The heart of a resting adult pumps blood at a rate of 5.00 L/min. (a) Convert this to cm/s. (b) What is this rate in m/s?