EP ENGINEERING FUNDAMENTALS-MINDTAP
5th Edition
ISBN: 9781305499508
Author: MOAVENI
Publisher: CENGAGE L
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Chapter 18, Problem 34P
To determine
Estimate the temperature of air density at
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The mass flow of air as it flows through the circular duct is defined by the
equation below where p = density. V = velocity. A = cross-sectional area of the
duct. Use dimensional homogeneity to determine the appropriate unit for mass
flow? *
m = pVA
V = 9.8 fps
d = 16"
Pair = 0.0019 slug/ft³
The variation of air density at the standard pressure as a function of temperature is given in the accompanying table. Use linear interpolation to estimate the air density at 27° C and 33° C.
1. Refer to the table below. Find the atmospheric pressure at 2120 m.
Atmospheric
Pressure (kPa)
Air Density
(kg/m³)
Altitude (m)
0 (sea level)
101.325
1.225
500
95.46
1.167
1000
89.87
1.112
1500
84.55
1.058
2000
79.50
1.006
2500
74.70
0.957
3000
70.11
0.909
3500
65.87
0.863
4000
61.66
0.819
4500
57.75
0.777
5000
54.05
0.736
6000
47.22
0.660
7000
41.11
0.590
8000
35.66
0.526
9000
30.80
0.467
10,000
26.50
0.413
11,000
22.70
0.365
12,000
19.40
0.312
13,000
16.58
0.266
14,000
14.17
0.228
15,000
12.11
0.195
2. Find the equation for the four linear sections of the moment diagram below.
| 25 kips | 25 kips
| 25 kips
C
D
E
А
В
6 ft
1 ft 2 ft
2 ft
M, (Kip.ft)
45
30
25
Chapter 18 Solutions
EP ENGINEERING FUNDAMENTALS-MINDTAP
Ch. 18.2 - Prob. 1BYGCh. 18.2 - Prob. 2BYGCh. 18.2 - Prob. 3BYGCh. 18.2 - Prob. 4BYGCh. 18.2 - Prob. BYGVCh. 18.3 - Prob. 1BYGCh. 18.3 - Prob. 2BYGCh. 18.3 - Prob. 3BYGCh. 18.3 - Prob. BYGVCh. 18.4 - Prob. 1BYG
Ch. 18.4 - Prob. 2BYGCh. 18.4 - Prob. 3BYGCh. 18.4 - Prob. 4BYGCh. 18.4 - Prob. BYGVCh. 18.5 - Prob. 1BYGCh. 18.5 - Prob. 2BYGCh. 18.5 - Prob. 3BYGCh. 18.5 - Prob. 4BYGCh. 18.5 - Prob. BYGVCh. 18.6 - Prob. 1BYGCh. 18.6 - Prob. 2BYGCh. 18.6 - Prob. 3BYGCh. 18.6 - Prob. 4BYGCh. 18.6 - Prob. BYGVCh. 18.7 - Prob. 1BYGCh. 18.7 - Prob. 2BYGCh. 18.7 - Prob. BYGVCh. 18 - Prob. 1PCh. 18 - Prob. 2PCh. 18 - Prob. 3PCh. 18 - In Chapter 12, we explained that the electric...Ch. 18 - The deflection of a cantilevered beam supporting...Ch. 18 - Prob. 6PCh. 18 - Prob. 7PCh. 18 - Prob. 8PCh. 18 - Prob. 9PCh. 18 - Prob. 10PCh. 18 - Prob. 11PCh. 18 - Prob. 12PCh. 18 - Prob. 13PCh. 18 - Prob. 14PCh. 18 - A jet plane taking off creates a noise with a...Ch. 18 - Prob. 16PCh. 18 - Prob. 17PCh. 18 - Prob. 18PCh. 18 - Prob. 19PCh. 18 - Prob. 20PCh. 18 - Prob. 21PCh. 18 - Prob. 22PCh. 18 - Prob. 23PCh. 18 - Prob. 24PCh. 18 - Prob. 25PCh. 18 - Prob. 26PCh. 18 - Prob. 27PCh. 18 - Prob. 28PCh. 18 - Prob. 29PCh. 18 - Prob. 30PCh. 18 - Prob. 31PCh. 18 - Prob. 32PCh. 18 - Prob. 33PCh. 18 - Prob. 34PCh. 18 - Prob. 35PCh. 18 - Prob. 36PCh. 18 - Prob. 37PCh. 18 - Prob. 38PCh. 18 - Prob. 39PCh. 18 - Prob. 40PCh. 18 - Prob. 41PCh. 18 - Prob. 42PCh. 18 - Prob. 43PCh. 18 - Prob. 44PCh. 18 - Prob. 45P
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- 600 mm 300 mm 300 mm 100 mm * 400 200 mm Figure 2. Determine i, ỹ and zarrow_forwardCalculate the y coordinate of the center of gravity of the shaded area given in the figure. a(mm)=145 b(mm)=45 c(mm)=30 d(mm)=290 e(mm)=35arrow_forwardUsing the information given in Table 10.4, determine the ratio of local pressure and density to sea-level values. Estimate the value of air density at the cruising altitude of most commercial airliners. Altitude (m) sealevel PPsealevel 0 (sea level) 1000 3000 5000 8000 10,000 12,000 14,000 15,000arrow_forward
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