Thursday, December 8, 2011

I have two questions for Astronomy which I can't, for the life of me, figure out the answers for.?

1. Suppose that a neutron star of 2.8 solar masses is part of a binary star system in which the other star is a


normal giant star. What would happen if half a solar mass of material were transferred onto the neutron star


from its companion?


A) The neutron star would collapse and become a black hole.


B) The increased gravitational force would transform the neutrons into quarks, and the neutron star would


re-establish equilibrium as a quark star of smaller diameter.


C) The neutron degeneracy pressure inside the neutron star would increase to balance the increased


gravitational force within the neutron star.


D) The neutron star would explode as a supernova.





2. If an astronomical source of electromagnetic radiation is observed to flicker, with intensity changes in as


short a time as 1/30 second, how large is the emitting region?


A)10,000 km, a little smaller than the Earth


B)1/30 light-year


C)9 脳 106 km, about 6 times the size of the Sun


D)10,000 m, about the size of a small city or town|||1) 2.8 is close to the limit for neutron stars. It would probably become a black hole if another .5 solar masses were added.





2) No larger than 10,000 km, which is the max distance that any effect can go in 1/30 seconds.|||1: B





but what do i kno, maybe that bit of a solar mass is all the neutron needed to go BOOM! or blackhole what ever....|||Are you sure the first one is even possible???

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