Solution suppose that a blood vessel of cross-sectional area a carries microbubbles at a speed v into a capillary bed. if the capillary bed is made up of n capillaries, each with cross-sectional area a, with what speed will the blood flow in the capillary bed

The speed of blood flow in the capillary bed is times the speed of blood flow in the blood vessel

Explanation:

Let the cross-sectional area of blood vessel be "A"

The speed of flow of blood into the capillaries is "v"

Now , it is given that capillary bed is made up of w "n" numbers of blood vessels with cross section area "A" and and speed "V"

Now as per continuity equation of flow, the flow remains constant when the density is unchanged

Thus ,

Flow in single blood vessel is equal to flow in "n" capillaries of capillary bed

Therefore,

Hence, the speed of blood flow in the capillary bed is times the speed of blood flow in the blood vessel

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when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.