A star of radius 42000 km rotates about its axis with a period of 20 days. The star undergoes a supernova explosion, whereby its core collapses into a neutron star of radius 13 km. Estimate the period of the neutron star (assume the mass remains constant). Answer in units of s.

A star of radius 42000 km rotates about its axis with a period of
20 days. The star undergoes a supernova explosion, whereby its core collapses into a neutron star of radius 13 km. Estimate the period of the neutron star (assume the mass remains constant).
Answer in units of s.
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The post A star of radius 42000 km rotates about its axis with a period of 20 days. The star undergoes a supernova explosion, whereby its core collapses into a neutron star of radius 13 km. Estimate the period of the neutron star (assume the mass remains constant). Answer in units of s. appeared first on Superb Professors.