(a) As blood passes through the capillary bed in an organ,the capillaries join to form venules (small veins). If the bloodspeed increases by a factor of 4.00 and the total crosssectionalarea of the venules is 10.0 cm2 , what is the totalcross-sectional area of the capillaries feeding these venules?(b) How many capillaries are involved if their averagediameter is 10.0 μm ?

(a) As blood passes through the capillary bed in an organ,the capillaries join to form venules (small veins). If the bloodspeed increases by a factor of 4.00 and the total crosssectionalarea of the venules is 10.0 cm2 , what is the totalcross-sectional area of the capillaries feeding these venules?(b) How many capillaries are involved if their averagediameter is 10.0 μm ?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter14: Fluid Mechanics

Section: Chapter Questions

Problem 81P: Prove the sped of an incompressible fluid through a constriction, such as a Venturi tube, increases...

See similar textbooks

Similar questions

What is the mass deep breath of air having a volume of 2.00 L? Discuss this effect taking such a breath has on your body's volume and density.
A straightforward method of finding the density of an object is to measure its mass and then measure its volume by submerging it in a graduated cylinder. What is the density of a 240-g rock 89.0 cm3 of water? (Note that the accuracy and practical applications of this technique are more limited than a variety of others that are based on Archimedes' principle.)
Prove the sped of an incompressible fluid through a constriction, such as a Venturi tube, increases by a factor equal to the square of the factor by which the diameter decreases. (The converse applies for flow out of a constriction into a larger-diameter region.)
Suppose you have a coffee with a circular cross-section and vertical sides (uniform radius). What is its inside radius if it holds 375 g of coffee filled to a depth of 7.50 cm? Assume coffee has the same density as water.
A container of water has a cross-sectional area of A=0.1m2 . A piston sits top of the water (see be following figure). There is a spout located 0.15 m from the bottom of tank, open to the atmosphere, and a stream of water exits the spout. The cross sectional area of the spat is As=7.0104m2 . (a) What is the velocity of the water as it leaves the spout? (b) If the opening of the spout is located 1.5 m above the grand, how far from be pout does water hit the floor? Ignore friction and dissipative forces.
A certain hydraulic system is designed to exert a force 100 times as large as the put into it. (a) What must be the ratio of the area of the cylinder that is being controlled to area of the master cylinder? (b) What must be the ratio of their diameters? (c) By what factor is the distance through which the output force moves reduced relative to the distance through which input force moves? Assume no losses due to friction.
How would you determine the density of an irregularly shaped rock?
The volume flow rate in an artery that supplies blood to the brain is 3.20 ✕ 10−6 m3/s. If the cross-sectional area of the artery is 8.90 ✕ 10−5 m2, what is the average speed (in m/s) of the blood through this vessel? Answer: 3.60X10^-2, but I can't figure out the second part : Find the average blood speed (in m/s) through a narrowed section of the artery where the cross-sectional area is reduced by a factor of 5.
The blood flow rate through the aorta is measured to be 107.3 cm^3/s, and an adult is measured to have 5.02 L of blood. How long does it take for all of your blood to pass through the aorta? If the adult's aorta has a diamter of 2.05 cm, what is the speed of blood as it flows through the aorta?
if a tube of 0.56 mm radius is introduced in water and it rises 18.9 mm by the capillary tube, showing a concave meniscus that forms an angle of 31 to the tube wall. What is the surface tension of water ?
If the density (mass divided by volume) of the wall material is the same as that of pure water, what is the mass (in mgmg) of the cell wall, assuming the cell to be spherical and the wall to be a very thin spherical shell?
While researching fluid dynamics, you come across a reference to the dimensionless number called the capillary number, given by the equation below. Ca=\frac{\mu v}{\gamma }, where mu = fluid viscosity [=] g/m s and v = velocity [=] ft/s what is gamma?