   Chapter 12, Problem 20PE

Chapter
Section
Textbook Problem

Calculate the maximum height to which water could be squirted with the hose in Example 12.2 example if it: (a) Emerges from the nozzle. (b) Emerges with the nozzle removed, assuming the same flow rate.

(a)

To determine

The maximum height at which water will be squirted with the hose if it emerges from the nozzle.

Explanation

Given:

Initial pressure =P1= 1 atm

Final pressure =P2=1 atm

Density of water =ρ=1000 kgm3

Initial speed =v1=25.5 ms

Final speed =v2=0 ms

Initial height =h1=0 m

Final height =h2

Formula Used:

Pressure at same level using Bernoulli's theorem is given as,

P+ρgh+(0.5)ρv2=constanthence, we get P1+(0.5)ρv12+ρgh1=P2+(0.5)ρv22+ρgh2

Calculation:

Using the equation

P1+(0

(b)

To determine

The maximum height at which water will be squirted with the hose if it emerges from the nozzle removed.

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