8. Explain the working principle of a Venturi meter State three applications of Venturi meter Mention two applications of Bernoulli's principle. The pulmonary artery, which connects the heart to the lungs has an inner radius of 2.6 mm and is 8.5 cm long. If the pressure drop between the heart and the lungs is 3x10³ Nm-², what is the average speed of blood in the pulmonary artery. Determine volume flow rate of blood. Assume body temperature of 37° C, and the coefficient of viscosity of blood = 4.0x10-3Nm -2 at 37°C.

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

Find v1, the speed of the fluid in the left end of the main pipe. express your answer in terms of h1, h2, g, and either a1 and a2 or γ, which is equal to a1a2.

You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?