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A lawn sprinkler has 40holes each of cross-section area 2.0 x10-2cm2. It is connected to a horse pipe of cross-section area 1.6cm2. if the speed...

      

A lawn sprinkler has 40holes each of cross-section area 2.0 x10-2cm2. It is connected to a horse pipe of
cross-section area 1.6cm2. if the speed of water in the horse pipe is 1.2m/s, calculate:
a) The rate of flow in the horse pipe.

b) The speed at which water emerges from the holes.

  

Answers


Moraa
a) The rate of flow in the horse pipe.
Rate of flow= A?
=(1.6 x10-4)x1.2m/s=1.92x10-4m3/s
b) The speed at which water emerges from the holes.
A1?1= A2?2
1.92x10-4m3/s=(2.0 x10-2x10-4)x ?2
?2=(1.92x10-4m3/s)/ (2.0 x10-2x10-4m2)= 2.4m/s.
Moraa orina answered the question on April 8, 2018 at 10:15


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