A) 75 lit B) 9 li C) 4.83 lit D) 217 lit 16) If turbulent flow begins in the aorta when the average blood speed reaches 30 cm/sec, what is the maximum flow rate that can be achieved without turbulent in an aorta with radius= 0.90 cm? A) 11.6 cm/sec B) 0.077 cm/sec C) 0.077 lit/sec D) 77 lit/sec Suppose a spherical virus has a radius of 50 nm. What is the diffusion coefficient of such a particle in water at 20C? Viscosity of water at 20C 1x10 kg/m.s. A) 6.39x10-12 m/s B) 2.58x102 m/s C) 2.93x10-3 m/s D) 4.29x10-12 m/s 18) An oil of viscosity 0.5 N s/m and density of 600 kg/m' is flowing through a circular pipe of diameter 60 cm. The velocity of the oil is 2 m/s. What is the Reynolds number? A) 1440 B) 1350 C) 1260 D) 1800