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12.37:
a) For a circular orbit, Eq. (12.12) predicts a speed of
s.
km
56
m)
10
43
(
kg)
10
99
.
1
)(
kg
m
N
10
673
.
6
(
9
30
2
2
11
=
×
×
⋅
×

The speed doesn’t have this value, so the orbit is not circular. b) The escape speed for any
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Unformatted text preview: object at this radius is s km 79 ) s km 56 ( 2 = , so the spacecraft must be in a closed elliptical orbit....
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