Answer 18 1pt What is the flow speed of the water in the lef

Answer:   

18. [1pt] What is the flow speed of the water in the left section of the pipe?

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19. [1pt]
What is the gauge pressure in the left section of the pipe?

Answer:  

Solution

A₁ = 3.14 (d₁²/4)

A₂ = 3.14 (d₂²/4)

Using equation of continuity

A₁ v₁ = A₂ v₂

3.14 (d₁²/4) v₁ = 3.14 (d₂²/4) v₂

(2.90²/4) (14.3) = (6.95²/4) v₂

v₂ = 2.5 m/s

Volume of water flown = 3.14 (d₁²/4) v₁ t = 3.14 ((0.029)²/4) (14.3) (22 x 60) = 12.5

18

flow speed in left section = v₂ = 2.5 m/s

19.

gauge pressure = (0.5) p (v₂² - v₁²) = (0.5) (1000) (14.3² - 2.5²) = 99120