430
Answers to Problems of the A Groups
5. 76.43 mi
16. 0.100 ml
6. 23.65 cm
17. A = 8.87 cm
2
7. (a) 6700 A and 3700 A
D =
L684 cm
(b) 670 nm and 370 nm
18. (a) 2.99 x 10~
23 ml/molecule
8. (a) 1.537395 x 1Q8 cm
(b) L925 A
(b) 2.28503 x 1Q8 cm
19. (a) 35.09° M (b) -59.20° M
(c) 7.0783 x 10-" cm
(d) 2.0862 x 10- cm
20
'
4
'
405 x 10
°
tons
9. 69.8°F
2L °'
025 *
10. -45.6°C
22 '
20
°
ml
227.6 K
23. 0.44 mm
11. -37.97°F
24. 4.0 x 10~
4 mm
234.33 K
25. (a) 6 cm
2
12. -459.76°F
(b) 60 cm
2
13 -40°C
^
6 X 106 Cm2; °'
135 foot ball
fields
-,
g
14. 1.582 x 10~
5 light-years
26 - cm x sec
15. 3.333 x 10
3 m
2
'
27 _ erg sec
g x cm
28. Force = mass x acceleration =
— = dynes
sec
2
_
force
g x cm
g
Pressure =
= -2=
2
area
sec
2 x cm
2
cm x sec
2
Volume = cm
3
Pressure x volume = (
J c ^ 2 ) (cm
3
) = (
g X ^
m ) (cm)
\ cm x sec /
\ sec /
= dynes x cm = ergs = work
CHAPTER 5
1.
2.
3.
(a) 3
(b) 3
(c) 4
(d) 5
(e) 3 or 4 (Is final 0 significant?)
(a) 15.60
(b) 721.17
(c) 1308.4
(d) 0.099
0.16 ppm
(f) 3
(g) 2
(h) 2
(i) 1
(D 1
(e) 1.60 x 10
3
(f) 4.01 x 10
17
(g) 3.400
(h) 2.472 x 1042