00:01
Hello everyone we are going to understand this question here given in the question given ultra carries blood away from the hurt at speed 40 centimeter per second speed of blood in outra speed of blood in ultra ultra that is represented by you which is 40 centimeter per second and radius of the radius of the ultra is 1 .1 centimeter radius of ultra that is represented by r which is 1 .1 centimeter the ultra branches eventually into the large number of tiny capillaries so let the total number of capillaries be n let the total number of capillaries total number of capillaries b, n.
01:45
And speed of blood in capillaries, speed of blood in capillaries, speed of blood in capillaries, speed of blood in capillaries, that is represented by v, which is 0 .07 centimeter per second.
02:18
And radius of capillary, radius of capillary, that is represented by r2.
02:36
This is r1 and this is r2.
02:40
That is 6 into 10 to the core minus 4 cm.
02:45
6 into 10 to the 4 cm.
02:50
So treat the blood as an incompressible fluid and use these data to determine the approximate number of capillaries.
03:01
We know that as liquid is incompressible.
03:06
So, using the continuity equation, now using continuity equation or flow equation, that is a1 into v1 is equal to a1 into u, sorry, a1 into u is equal to a2 into v...