URGENT please help answer !!!!!! Exercise 12.39 Part A Water is flowing in a cir

Question

URGENT please help answer !!!!!! Exercise 12.39 Part A Water is flowing in a circular pipe varying cross sectional area, and at all points the water completely ills the pipe. At one point in the pipe the radius is 0.150 m. What is the speed of the water at this point if water is flowing into this pipe at a steady rate of 120 m/s? Submit My Answers Give Up Correct Part B At a second point in the pipe the water speed is 2 90 m/s. What is the radius of the pipe at this point? In Submit My.Answers Give Up Incorrect: Try Again; 5 attempts remaining DOLL

Explanation / Answer

a)

speed of water at point 1

V1=Q/A =1.2/(pi*0.152)

V1=16.98 m/s =17 m/s (approx)

b)

From Continuity equation

A1V1 =A2V2

(pi*0.152)*17=(pi*r22)*2.9

r2=0.363 m

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