To receive ANY credit for this section, you MUST attempt at least 6 questions (3

Question

To receive ANY credit for this section, you MUST attempt at least 6 questions (30 points) in this section 14) What is the main factor that determines the evolution of a star? A. luminosity B. diameter C. temperature D. mass E. radiation pressure The evolution of stars appears inevitable. But what circumstances can radically alter this evolutionary sequence? 15) the stars can be in a short period binary system B. A. the stars may pass through a dark dust cloud and gain mass C. the stars may collide with other stars D. the stars may escape from their star cluster E. the stars may have a solar system Which one of the following statements about neutron stars is TRUE? A. The Sun will turn into a neutron star when it dies. B. Electron degeneracy pressure is keeps a neutron star from collapsing. C. All neutron stars are part of a binary system D. All neutron stars are pulsars. E. All pulsars are neutron stars 16) As pulsars radiate energy into space, their rate of rotation ...? A. slows down B. speeds up C. remains the same D. decreases, then increases 17) 8) Which one of the following statements about black holes is NOT true? A. If you watch someone else fall into a black hole, you will never see him or her cross the event horizon. However, he or she will fade from view as the light he or she emits (or reflects) becomes more and more redshifted. B. If we watch a clock fall toward a black hole, we will see it tick slower and slower as it falls nearer to the black C. A black hole is truly a hole in spacetime, through which we could leave the observable universe. D. If the Sun magically disappeared and was replaced by a black hole of the same mass, Earth would soon be E. If you fell into a black hole, you would experience time to be running normally as you plunged rapidly across hole. sucked into the black hole. the event horizon.

Explanation / Answer

14. Primary factordetermining how a star evolves is its Mass as it reaches the main sequence.

Explanation:

--------------------------------------------------------------------------------------------------------------------------------------

15. the stars may have escaped fro the solar cluster.

16. The sun will turn into a nuetron star when it dies.

Explanation:

---------------------------------------------------------------------------------------------------------------------------------------

17. Slows down

Explanation:

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.