p04 088

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88.

(a) With r = 0.15 m and a = 3.0

× 10614 m/s

2

, Eq. 4-32 gives

v =

ra = 6.7

× 10

6

m/s .

(b) The period is given by Eq. 4-33:

T =

2πr

v

= 1.4

× 10

7

s .


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