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1.61:
a) Estimate the volume as that of a sphere of diameter 10 cm:
3
4
3
m
10
2
.
5
3
4

×
=
=
r
V
π
Mass is density times volume, and the density of water is
3
m
kg
1000
, so
(
29
(
29 (
29
kg
5
.
0
m
10
2
.
5
m
kg
1000
98
.
0
3
4
3
=
×
=

m
b) Approximate as a sphere of radius
m
25
.
0
μ
r
=
(probably an over estimate)
3
20
3
m
10
5
.
6
3
4

×
=
=
r
V
(
29
(
29 (
29
g
10
6
kg
10
6
m
10
5
.
6
m
kg
1000
98
.
0
14
17
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Unformatted text preview: 3 20 3 × = × = × =m c) Estimate the volume as that of a cylinder of length 1 cm and radius 3 mm: ( 29 ( 29 ( 29 g 3 . kg 10 3 m 10 8 . 2 m kg 1000 98 . m 10 8 . 2 4 3 7 3 3 7 2 = × = × = × = =m l r V...
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This homework help was uploaded on 02/14/2008 for the course PHYS 112 taught by Professor Wheeler during the Spring '08 term at Cornell University (Engineering School).
 Spring '08
 Wheeler
 Mass

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