A star with an initial radius of 1.0 x 1084  m and a period of 30.0 Earth days collapses suddenly to a radius of 1.0 x 10 m, while keeping essentially the same mass.  This collapsed star is probably a neutron star. (a)  What will be the angular velocity of the neutron star in rad/s and rot/s? (b) What will be the speed, in m/s of an indestructible person standing on the equator of the neutron star? (c)  What per cent of the speed of light will the person be traveling on the neutron star?