# A 5.7 diameter horizontal pipe gradually narrows to 3.6 cm. The the water flows through this pipe at certain rate, the gauge pressure in these two sections is 32.5 kPa and 24.0 kPa, respectively. What is the volume of rate of flow?

##### 1 Answer

The flow rate is

#### Explanation:

Apply Bernoulli's Principle

Since the Pipe is horizontal,

So,

The flow rate is constant

Where

Where

Therefore,

The pressures are

And the density of water is

Therefore,

Finally,

The flow rate is