13,600 kg/m) is con- 1-72 A mercury manometer (p = nected to an air duct to measure the pressure inside, The differ- ence in the manometer levels is 15 mm, and the atmospheric pressure is 100 kPa. (a) Judging from Fig. P1-72, determine if the pressure in the duct is above or below the atmospheric pressure. (b) Determine the absolute pressure in the duct.
13,600 kg/m) is con- 1-72 A mercury manometer (p = nected to an air duct to measure the pressure inside, The differ- ence in the manometer levels is 15 mm, and the atmospheric pressure is 100 kPa. (a) Judging from Fig. P1-72, determine if the pressure in the duct is above or below the atmospheric pressure. (b) Determine the absolute pressure in the duct.
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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Transcribed Image Text:1-72 A mercury manometer (p = 13,600 kg/m) is con-
nected to an air duct to measure the pressure inside, The differ-
ence in the manometer levels is 15 mm, and the atrmospheric
pressure is 100 kPa. (a) Judging from Fig. P1-72, determine if
the pressure in the duct is above or below the atmospheric
pressure. (b) Determine the absolute pressure in the duct.
Air
P=?
FIGURE P1-72
1-73 Repeat Prob. 1-72 for a differential mercury height of
45 mm.
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1-78 Freshwater and seawater flowing in parallel horizontal
pipelines are connected to each other by a double U-tube
manometer, as shown in Fig. PI-78. Determine the pressure
difference between the two pipelines. Take the density of sea-
water at that location to be p
umn be ignored in the analysis?
1035 kg/m³. Can the air col-
Air
Fresb
water
Sea
water
Me
1E/ 11-1.
FICURE PITS
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1-81 Consider the manometer in Fig. PI-80. If the specific
weight of fluid A is 100 kN/m, what is the absolute pressure,
in kPa, indicated by the manometer when the local atmos-
pheric pressure is 90 kPa?
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