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(Solved): If the iron core of a dying star initially spins with a rotation frequency of 0 = 3.20 rad/s, and ...



If the iron core of a dying star initially spins with a rotation frequency of ?0 = 3.20 rad/s, and if the core’s radius decreases during the collapse by a factor of 22.7, what is the angular velocity of the iron core at the end of the collapse, (assuming that the iron core is a uniform sphere before collapse and is a uniform sphere after collapse)?  Use the fact that the rotational inertia of a rotating sphere is given by:



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Given initial angular frequency ??=
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