318 times tha mass of Jupiter is approximately star whose mass equals 2M. (a) Compute th at 0.5 rev/s and assuming its density to be unif its rotation slows by 1 part in 108 per day am
318 times tha mass of Jupiter is approximately star whose mass equals 2M. (a) Compute th at 0.5 rev/s and assuming its density to be unif its rotation slows by 1 part in 108 per day am
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Transcribed Image Text:etary nebula is 12 times as luminous as the Sun and 15 times hotter, what is the radius of the
central star in units of R.?
Section 13-5 Final States of Stars
13-14. Calculate the Schwarzschild radius of a star whose mass is equal to that of (a) the Sun,
(b) Jupiter, (c) Earth. (The mass of Jupiter is approximately 318 times that of Earth.)
13-15. Consider a neutron star whose mass equals 2M.. (a) Compute the star's radius. (b) If
the neutron star is rotating at 0.5 rev/s and assuming its density to be uniform, what is its rota-
tional kinetic energy? (c) If its rotation slows by 1 part in 10° per day and the lost kinetic en-
ergy is all radiated, what is the star's luminosity?
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