D.17. CHAPTER 17
Exercise 1
1. 9/2
3. 8/3
5. 8
7. 8
9. 3x
11. −5a
13. (x + 2)/x
15. ±12
17. ±15
19. 300 turns
21. 2.63
23. (a) 2.15; (b) 2.24; (c) 96.0%
Exercise 2
1. 0.951 m
3. 639 lb
5. 74.2 mm
7. 2.02 ft2
9. $338
11. 43.8 acres
13. 161 acres
15. 7570 ft3
Exercise 3
1. 197
3. 71.5
5.
x 9 11 15 y 45 55 75 7.
x 115 125 138 154 y 140 152 167 187 9. 6850
11. 418 mi
13. 4470 Ω
15. 15,136 parts
17. 36.6 MW
Exercise 4
1. 2050
3. 79.3
5. 2799
7. 66.7
9.
x 18.2 75.6 27.5 y 29.7 8840 154 11.
x 315 122 782 y 203 148 275 13.
15. 396 m
17. 4.03 s
19. 765 W
21. 1.73
23. f8
25. f13
Exercise 5
1. 1420
3. y is halved
5.
x 306 622 91.5 y 125 61.5 418 7.
x 9236 3567 5725 y 1136 1828 1443 9. 41.4% increase
11.
13. 103 lb/in.2
15. 4.49 × 10 −6 dyne
17. 79 lb
19. 200 lux
21. 5.31 m
23. 0.909
25. 33.3% increase
Exercise 6
1. 352
3. 4.2% increase
5.
w x y 46.2 18.3 127 19.5 41.2 121 116 8.86 155 12.2 43.5 79.8 7. 13.9
9. y = 4.08x3/2/W
11.
13.
15. 9/4
17. 169 W
19. 3.58 m3
21. 3.0 weeks
23. 12,600 lb
25. 394 times/s
27. 2.21
Review Problems
1. 1040
3. 10.4% increase
5. 121 L/min
7. 1.73
9. 29 yr
11. Shortened by 0.3125 in.
13. 8.5
15. 22 h 52 m
17. 215,000 mi
19. 42 kg
21. 2.8
23. 45% increase
25. 469 gal
27. 102 m2
29. 1.1 in.
31. 17.6 m2
33 ...
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