Page 1628 - College Physics For AP Courses
P. 1628
1616 Answer Key
5
7
10.8
9
617 W
11
35.9 kcal
13
(a) 591 kcal
(b)
15
13.5 W
17
(a) 148 kcal
(b) 0.418 s, 3.34 s, 4.19 s, 22.6 s, 0.456 s
19
33.0 g
20
(a) 9.67 L
(b) Crude oil is less dense than water, so it floats on top of the water, thereby exposing it to the oxygen in the air,
which it uses to burn. Also, if the water is under the oil, it is less efficient in absorbing the heat generated by the oil.
22
a) 319 kcal
b)
24
26
4.38 kg
28
(a) (b)
(c) 30
(a) W (b) One
32
84.0 W
34
2.59 kg
36
(a) 39.7 W
(b) 820 kcal
38
35 to 1, window to wall
40
42
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