the crab nebula is a cloud of glowing gas about 10 light years across, located a
ID: 1723923 • Letter: T
Question
the crab nebula is a cloud of glowing gas about 10 light years across, located about 6500 light years from the earth. It is a remnant of a star that underwent a supernova explosion, seen on the earth in 1054 A.D. Energy is release by the crab Nebula at a rate of about 5x10^31W,about 10^5 times the rate at which the sun radicates energy. The crab nebula obtains its energy from the rotational kinetic energy of a rapidly spinning neutron star at its center. This object rotates once every 0.0331 s , and this period is increasing by 4.22x10^-13s for each second of time that elapses.(a) If the rate at which energy its lost by the neutron star is equals to the rate at which energy is released by the nebula, find the moment of inertia of th neutron star.(b) theory of the supernova predict that the neutron star int the crab nebula has a mass about 1.4 times that of the sun modeling the neutron star as a solid uniform sphere, calculate its radius in kilometers.(C)What is the lineal speed of a point on the equator of the neutron star?compare to the speed of lightExplanation / Answer
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