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56.
CONCEPT QUESTIONS
a.
The period for the second hand is the time it takes for
it to go once around the circle or
T
second
= 60 s.
b.
The period for the minute hand is the time it takes for it to go once around the
circle or
T
minute
= 1 h = 3600 s.
c.
The relationship between the centripetal acceleration and the period can be
obtained by using Equations 5.2 and 5.1 in the following way:
()
2
c
2
2
c
2
2
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 Spring '08
 SOFFER

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