Water is flowing in a circular pipe varying cross-sectional area, and at all poi

Question

Water is flowing in a circular pipe varying cross-sectional area, and at all points the water completely fills the pipe.

1.) At one point in the pipe the radius is 0.160 m. What is the speed of the water at this point if water is flowing into this pipe at a steady rate of 1.90 m^3/s?

v1 = ?? m/s

2.) At a second point in the pipe the water speed is 4.70 m/s. What is the radius of the pipe at this point?

r2 = ?? m

I have no idea how to do these. Please show step by step with correct answers so I can try to understand.

THANK YOU!!

Explanation / Answer

1) Q=AV

V=Q/A = 1.9/(pi*0.16^2)=23.62m/s

2) A=Q/V=1.9/(4.7)=0.404 m^2

pi*r^2=0.404

r=0.358m

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.