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84. See Appendix C. We note that, since
v
= 2
π
r/T
, the centripetal acceleration may be
written as
a
= 4
π
2
r/T
2
. To express the result in terms of
g
, we divide by 9.8 m/s
2
.
(a) The acceleration associated with Earth’s spin (
T
= 24 h = 86400 s) is
6
3
22
4
(6.37
10 m)
3.4 10
.
(86400s) (9.8m/s )
ag
g
π
−
×
==
×
2
(b) The acceleration associated with Earth’s motion around the Sun (
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This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.
 Spring '08
 Any
 Physics, Acceleration

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