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88. (a) The time for one revolution is the circumference of the orbit divided by the speed
v
of the Sun:
T
= 2
π
R
/
v
, where
R
is the radius of the orbit. We convert the radius:
R
=×
×
=
×
23 10
4
.
ly 9.46 10 km / ly
2.18 10 km
12
17
ch
c
h
where the ly
↔
km
conversion can be found in Appendix D or figured “from basics”
(knowing the speed of light). Therefore, we obtain
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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

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