Water (density = 1 ´ 103 kg/m3) flows at 10 m/s through a pipe with radius 0.030 m. the pipe goes up to the second floor of the building, 2.0 m higher, and the pressure remains unchanged. what is the radius of the pipe on the second floor?

density of water =

velocity of flow =

radius of pipe =

Height of second floor =

Now we can use here Bernuoli's Equation to find the speed of water flow at second floor

Now in order to find the radius of pipe we can use equation of continuity

So radius of pipe at second floor is 0.034 meter

0.11 m/s and 0.28 m/s should be correct