Answered: Water at 10°C flows through the system…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Hi. I am trying to practice this problem using a checker online, but everytime I recalculate my answer it always says it's incorrect. So far I have calculated and tried to input the following values: 59.09kW, 53.0899kW, 21.94kW, and 22.715kW but it always keeps saying they are incorrect. Am I missing a sign change? (Should the answer be negative?) Or am I solving this incorrectly and getting the wrong value each time? Please help show me the correct steps on how to get the correct answer as I am trying to learn this process. Thank you!

Water at 10°C flows through the system shown in the figure below at 0.34 m/s. Energy loss in the 40-cm pipe is negligible. Energy loss
in the 30-cm pipe is known to be 1.5V2. A mercury manometer indicates that the absolute pressure at the top of the 30-cm pipe is
749.5 mm Hg abs. The pressure of the surroundings is 101,330 Pa. Calculate the power input to the pump.
p = 749.5 mm Hg
Elevation
= 10 m-
D= 30 cm
-Elevation
= 6 m
40-cm diameter
Water
T = 10 °C
Elevation = 2 m
W =
i
kW

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