An interesting phenomenon occuring in certain pulsars is an event known as a "spin glitch," that is, a quick change in the spin rate of the pulsar due to a shift in mass location and a resulting rotational change in inertia. imagine a pulsar whose radius is 10 km and whose period of rotation is 25.03 ms. the rotation period is observed to suddenly decrease from 25.03 ms to 25.027 ms. if that decrease was caused by a contraction of the star, by what amount would the pulsar radius have had to shrink?