yindeemark (rry82) – Homework 1 – chelikowsky – (59005)
1
This printout should have 15 questions.
Multiplechoice questions may continue on
the next column or page – fnd all choices
beFore answering.
001
10.0 points
A human hair is approximately 59
μ
m in di
ameter.
Express this diameter in meters.
1.
5
.
9
×
10
6
m
2.
5
.
9
×
10
−
6
m
3.
5
.
9
×
10
−
7
m
4.
5
.
9
×
10
7
m
5.
5
.
9
×
10
−
5
m
correct
6.
5
.
9
×
10
5
m
7.
None oF these
Explanation:
Basic Concept:
1
μ
m = 1
×
10
−
6
m
Let:
diameter = 59
μ
m
Solution:
diameter = 59
μ
m
=
(
5
.
9
×
10
1
μ
m
)
·
1
×
10
−
6
m
1
μ
m
= 5
.
9
×
10
−
5
m
keywords:
002
10.0 points
The distance between the sun and the Earth is
about 1
.
5163
×
10
11
m. Express this distance
in kilometers.
1.
1
.
5163
×
10
11
km
2.
1
.
5163
×
10
9
km
3.
1
.
5163
×
10
8
km
correct
4.
1
.
5163
×
10
10
km
5.
None oF these
6.
1
.
5163
×
10
7
km
7.
1
.
5163
×
10
6
km
Explanation:
Basic Concept:
1 km = 1
×
10
3
m
Solution:
distance =
(
1
.
5163
×
10
11
m
)
·
1 km
1
×
10
3
m
= 1
.
5163
×
10
8
km
003
10.0 points
A certain corner oF a room is selected as the
origin oF a rectangular coordinate system.
IF a ±y is crawling on an adjacent wall at a
point having coordinates (2
.
2,7
.
5), where the
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 Fall '08
 Turner
 Cartesian Coordinate System, Work, Correct Answer

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