Hi, i dont know how to do this question - some help would be appreciated. Q: A patient is to be given a blood transfusion. The blood is to flow through a tube from a raised flexible bag to a needle inserted in the vein. The inside diameter of the 40mm-long needle is 0.40mm and the required flow rate is 4.0*10^-6 m^-3 of blood per minute. [density of blood = 1.06*10^3 kg.m^-3], [Viscosity (eta) of blood = 2.084*10^-3 Pa.s] a) How high should the bag be placed above the needle? Assume the blood pressure in the vein is 2.4 kPa above atmospheric pressure. b)What would happen if the blood were to be transfused from an inverted glass bottle rather than a flexible bag? Could some please show me how to do part a)? :uhh: Thanks!