Question

A pipe makes a 30 degree angle with surface of the sea and makes its way down to the bottom. The speed of fluid at the surface is 15 m/s, and the speed of the fluid at the bottom is 10 m/s. At the top is the pressure is 100000 Pa and at the bottom the pressure is 300000 Pa. The fluid is water. How deep does the pipe go underwater? How long is the pipe on downward slant to the bottom? b) If the area of the pipe is 3 cm2, how do you adjust the area to make water come up 3 times faster?

Answer 1

According to the Bernoulli's Principle

H=14.03

HENCE THE PIPE GOES 14.03 METRES DEEP UNDERWATER

LENGHT OF THE PIPE IS

H=Lsin30

L=H/sin30

L=2H

L=28.06 metres

b)

Since the rate of flow is constant,i.e.

Q=Av

A=area

v=speed

so to make the water three times faster the area is reduced by three times because Q is a constant value