Planets A and B are uniform solid spheres that rotate at a constant speed about axes through their centers. Although B has twice the mass and three times the radius of A, each planet has the same rotational kinetic energy. What is the ratio B/ A of their angular speeds?
A) 0.055
B) 0.093
C) 0.165
D) 0.191
E) 0.236
Correct Answer:
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