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icashaypabozp
21.10.2020 •
Physics
Find the distance along an arc on the surface of the earth that subtends a central angle of 1 minutes (1 minute = 1/60 degree). The radius of the earth is 3960 miles. Round to the thousandths. (3 decimal places)
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Ответ:
1.152 miles
Explanation:
Given: central angle = 1 minute =![(\frac{1}{60}) ^{o}](/tpl/images/0827/7980/f2f0e.png)
radius of the earth = 3960 miles
The length of an arc =
2
r
where:
is the central angle, and r is the radius.
Thus,
Distance along the arc =
2
r
Distance along the arc =
x 2 x
x 3960
=
x 24891.4286
= 1.1524
The required distance along an arc is 1.152 miles.
Ответ:
B
Explanation: