10. (1) What is the difference in blood pressure (mm-Hg) between the top of the head and bottom of the feet of a 1.75-m-tall person standing vertically?

09) Water flows into the top floor of a 16 m high building through a pipe of constant 2 cm diameter. At the hase of the building (ground level) the water flows into the pipe at a speed of 60 cm/s where the gauge pressure is 3.2 atm. The gauge pressure (in atm) in the pipe in the top floor is: A) 0 B) 1.54 C) 2.65 D) 1.65 E) 3.2

3. One of the dangers of tornados and hurricanes is the rapid drop in air pressure that is associated with such storms. Assume that the air pressure inside of a sealed house is 1.02 atm when a hurricane hits. The hurricane rapidly decreases the external air pressure to 0.910 atm. A square window in an outside wall of the house measures 2.02 m on each side. What is the magnitude of the net force (directed outwards) exerted on this window? (1 atm = 1.0135 x 105 Pa.)

What is the difference in blood pressure (mm-Hg) between the bottom of the feet and the top of the head of a 1.61-m-tall person standing vertically? 1 mm-Hg = 133 N/m^2. The density of blood is 1050 kg/m3