The flow of blood in a large artery of an anesthetised dog is diverted through a Venturi meter. The wider part of the meter has a cross-sectional area equal to that of the artery. A = 8 . The narrower part has an area a = 4 . The pressure drop in the artery is 24 Pa. What is the speed of the blood in the artery?
(Density of blood = )
1. 145 m/s
2. 0.145 m/s
3. 123 m/s
4. 0.123 m/s
A fully loaded Boeing aircraft has a mass of kg. Its total wing area is 500 . It is in level flight with a speed of 960 km/h. The pressure difference between the lower and upper surfaces of the wings is: [Given: Density of air, ρ = 1.2 and g = 9.8 m/s2]
1.
2.
3.
4.
A fully loaded Boeing aircraft has a mass of kg. Its total wing area is 500 . It is in level flight with a speed of 960 km/h. The fractional increase in the speed of the air on the upper surface of the wing relative to the lower surface is:
1. 0.008
2. 0.08
3. 0.8
4. 8.0