BOOK ANSWERS

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ANSWERS

CHAPTER 3
1. a. 45 miles b. +115
3. a. zero displacement b. 6.0m
4. 1.5 X 10^11 m
5. 1.8 minutes
9. a. 14 km/h, west b. no

CHAPTER 4
1. 8.0 m/s^2
2. a. 247 m/s^2 b. -207 m/s^2
5. 33 m/s
6. b. 8.0 m c. 32m d. 110 m e. 4 m/s^2 f. 0 constant velocity
8. a. 607 m/s b. 1.83 times the speed of sound
9. 7.0 X 10^4 m/s
10. 9.2 X 10^2 m
12. a. 43m b. 43m
14. 1.2 s
16. 71 m/s
18. a. 24 s b. 7.4 X 10^2 m
23. 29 times g
27. a. 5 m/s b. 1.7 m/s^2 c. 67 m

CHAPTER 5
1.a. 45 m/s^2 b. 3.9 X 10^4 N c. 3.1 X 10^3 N d. inertial mass
5. 3.1 X 10^3 N
9. 6.6 X 10^-25 m/s^2
10. -2.0 m/s^2
11. a. 95.0 kg b. 929 N c. 95.0 kg d. 934 N e. "mass-in"
12. 250 kg
14. 1.13 X 10^4 N; opposite direction of motion
17. -1 m/s^2
25. 4.8 m/s^2

CHAPTER 6

THERE ARE NO VECTOR ANSWERS BECUASE YOU SHOULD ALREADY KNOW THEM!!!

CHAPTER 7
2. 32m
3. a. 0.500 s b. 0.800 m/s
4. 33m; 7.3 m
13. a. 9.65 m/s^2 b. 5.94 X 10^3 N
15. a. 6.3 N b. 25 N c. 4:1
17. a. 2.62 X 10^7 m/s^2 b. 2.64 X 10^4 N c. 4.78 X 10^-4 s

Chapter 8
1. see fgure 8-15, only d is possible. a and b do not have sun at a focus; c dores not have planet in plane of ellipse
8. Since T= 2(pi)(sqrroot r^3/Gm), as the mass of the planet increases, the period of a satellite will decrease, and since Earth has a larger mass, Earth's satellite will have the smaller period.
9. d= Re + Re = 2Re so, a = g( Re/2Re)^2 = (1/4)g
20. a. 3.07 X 10^3 m/s b. 24.0h
22. a. 0.2 m/s^2 b. 2 X 10^1 N
23. a. 1.80 X 10^3 N b.800 N
26. 6.68 N/kg
28. 352 N

CHAPTER 9
1. 351 kg-m/s
3. 42 m/s
5. a. 2.04 X 10^4 N-s b. 300 N
7. 2.6 X 10^2 N
9. 1.0 X 10^3 kg
16. a. 1.0 X 10^-3 kg-m/s b. -6.0 X 10^-4 kg-m/s c. 6.0 X 10^-4 kg-m/s d. 1.60 X 10^-3 kg-m/s e. 16.0 cm/s
19. 11 m/s
23. The student with the smaller mass
27. 0.22 m/s, original direction

CHAPTER 10
1. 8.0 X 10^2 J
3. 59.9 kg
8. a. 826 N b. 1.13 X 10^4 J c. -1.13 X 10^4 J
11. 3.1 X 10^4 J
13. 7.7J
19. a. 348W b.696W
23. 1.6 X 10^2 W
29. a. 250 N b. 50 N c. 5.00 X 10^3 J d. 300 N e. 4.00
31. a. 4.00 b.3.59 c.89.8%
33. 98 J

CHAPTER 11
not able to post because im tired and lazy ahahah have fun with this one lets see how many you can get right!!!!!!!!!!!!!!!!!!!!!!!!!! ill make this chapter special for you guys!!!

- Mr.B