9.49:
a)
T
ω
π
2
=
, so Eq. (9.17) becomes
.
2
2
2
T
I
K
π
=
b) Differentiating the expression found in part (a) with respect to
T
,
.
)
4
(
3
2
dt
dT
T
I
dt
dK

=
c)
figures.
two
to
70
or
J,
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