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A massive star is spinning about its dia...

A massive star is spinning about its diameter with an angular speed `omega_(0) = (pi)/(1000)` rad/day. After its fuel is exhausted, the star collapses under its own gravity to form a neutron star. Assume that the volume of the star decreases to `10^(-12)` times the original volume and its shape remains spherical. Assuming that density of the star is uniform, find the angular speed of the neutron star.

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The correct Answer is:
`pi xx 10^(5)` rad/s
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