Will Rate Quick! Part 1 & 3 are correct. Need Pa question answered. A horizontal

Question

Will Rate Quick!

Part 1 & 3 are correct. Need Pa question answered.

A horizontal pipe carries a smoothly flowing liquid with density 1.17 times 103 kg/m3. At locations 1 and 2 along the pipe the diameters are 5.47 cm and 3.83 cm, respectively. Is the flow speed at location 2 higher or lower than at location 1? The flow speed at location 1 is 2.41 m/s. What is the pressure difference between location 2 and location 1 (including its sign)? Ignore viscosity Is the pressure at location 2 higher or lower than at location 1?

Explanation / Answer

Viscosity is neglected

Bernoulli's Theorem is applicable

Therefore

V1^2/2g +P1/(rho*g) +z1 =V2^2/2g +P2/(rho*g) +z2 (1)

z1=z2

V1=2.41

from continuity A1V1=A2V2

therefore V2 =(A1V1)/A2 =V1*(d1^2/d2^2) =4.916 m/s

Therefore from (1)

P2-P1 = -10739.989 Pa (ANS)

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