Fisica

Chapter 1 Even Answers

2.
4.
6.
8.
10.
12.
16.
18.
20.
22.
24.
26.
28.
30.
32.
34.
36.
38.
40.
42.
44.
46.
48.50.
52.
54.
56.
58.
60.
62.
64.
66.
68.
70.

623 kg/m3
3
3
4 πρ (r2 – r1 )
3
7.69 cm
8.72 × 1011 atoms/s
(a) 72.6 kg(b) 7.82 × 1026 atoms
equation is dimensionally consistent
The units of G are: m3/kg ⋅ s2
9.19 nm/s
(a) 3.39 × 105 ft3 (b) 2.54 × 104 lb8.32 × 10–4 m/s
9.82 cm
(a) 6.31 × 104 AU (b) 1.33 × 1011 AU
(a) 1.609 km/h (b) 88.5 km/h (c) 16.1 km/h
(a) 3.16 × 107 s/yr (b) 6.05× 1010 yr
2.57 × 106 m3
1.32 × 1021 kg
(a) 2.07 mm (b) 8.62 × 1013 times as large
(a) 13.4 (b) 49.1
3

rAl = rFe (ρFe/ρAl)
~ 106km
~ 109 drops
time required ≅ 50 years or more;
advise against accepting the offer
~ 105 tons
(a) 2 (b) 4 (c) 3 (d) 2
(a) 797 (b)1.1 (c) 17.66
(a) 3 (b) 4 (c) 3 (d) 2
5.2 m3, 2.7%
1.79 × 10–9 m
24.6°
(b) Acylinder = πR2, Arectangular solid = lw
0.141 nm
289 µm(a) 1000 kg (b) 5.2 × 10–16 kg 0.27 kg (d) 1.3 × 10–5 kg
g
Aluminum: 2.75 3 (table value is 2% smaller)
cm
g
Copper: 9.36
(tablevalue is 5% smaller)
cm3
g
Brass: 8.91
cm3
g
Tin: 7.68
cm3
g
Iron: 7.88
(table value is 0.3% smaller)
cm3

© 2000 by HarcourtCollege Publishers. All rights reserved.

2

Chapter 1 Even Answers

© 2000 by Harcourt College Publishers. All rights reserved.