Question

During blood transfusion the needle is inserted in a vein where the gauge pressure is 2000 Pa. At what height must the blood container be placed so that blood may just enter the vein? [Use the density of whole blood from Table 10.1].

Answer 1

Here,
Guage pressure ( P) = 2000 Pa
density of whole blood ( d) = 1.06 × 10³ kg/m³
g = 9.8 m/s²
Let the container be placed at the h metre .
Pressure exerted by the blood ( P) = h.d.g
h = P/d.g
= 2000/1.06 × 10³ × 9.8
= 0.193 m

Answer 2

Hlo Every one this is the answer hope it will help you