The carotid artery (blood vessel) supplies blood to the brain, with a diameter and length of 8 mm and l.5 m, respectively. assume that for a normal person, about 3.6 ml of blood is pumped for every heartbeat, heart rate is 80 heartbeats/minute, the blood's specific gravity is 1.060 and its viscosity is 0.0027 kg/m. s. determine, (1) the reynolds number of blood flow through this healthy vessel. (ii) the friction factor (assume the blood vessel is smooth). (iii) the pressure drop across the vessel.