1. In a normal adult person, the blood flow rate in the aorta is 0.33 m/s. The viscosity of the aortic blood is 9 mm and the viscosity of 37oC blood at body temperature is approximately 4,0.10^-3 kg/m.s. Aortic's 0.5 m b'r long pressure drop Calculate in mmHg.

2. A steel sphere with a diameter of 0.2 cm drops 10 cm per 25 sec within 1.50 g/ml of a viscous liquid density of 7.86 g/ml. What is the viscosity of liquid at this temperature?