Author Question: A horizontal tube consists of a 7.0-cm diameter pipe that narrows to a 2.0-cm-diameter throat. In ... (Read 75 times)

TVarnum · **on:** Jul 29, 2018

A horizontal tube consists of a 7.0-cm diameter pipe that narrows to a 2.0-cm-diameter throat. In the pipe, the water pressure is twice atmospheric pressure and the water flows with a speed of 0.40 m/s.

What is the pressure in the throat, assuming that the water behaves like an ideal fluid? The density of water is 1000 kg/m3, and atmospheric pressure is 1.01 105 Pa. A) 1.9 atm
B) 0.12 atm
C) 2.1 atm
D) 2.0 atm

Question 2

Small ripples on the surface of a pond are

A) transverse waves in a three dimensional medium.
B) transverse waves in a two-dimensional medium.
C) longitudinal waves in a two-dimensional medium.
D) not really waves at all.
E) longitudinal waves in a three-dimensional medium.