344_Physics ProblemsTechnical Physics

344_Physics ProblemsTechnical Physics - 346 P11.52 Angular...

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346 Angular Momentum P11.52 (a) LM v d Mvd i = F H G I K J L N M O Q P = 2 2 (b) KM v M v = F H G I K J = 2 1 2 22 (c) LL M v d fi == (d) v L Mr Mvd M v f f f d = 2 2 2 4 ch (e) v M v M v ff = F H G I K J 2 1 2 24 2 2 2 af (f) WK K M v =− = 3 2 FIG. P11.52 *P11.53 The moment of inertia of the rest of the Earth is IM R × × = ×⋅ 2 5 2 5 5 98 10 10 9 71 10 46 2 37 .. kg 6.37 m kg m 2 ej . For the original ice disks, r × × = × 1 2 1 2 2 30 10 4 14 10 21 9 2 30 kg 6 10 m kg m 52 . For the final thin shell of water, r × × = × 2 3 2 3 2 30 10 6 22 10 9 2 32 kg 6.37 10 m kg m 62 . Conservation of angular momentum for the spinning planet is expressed by II ii f f ωω = 4 14 10
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