Author Question: In a neutron star, the core is A) primarily iron and silicon. B) electrons and protons packed so ... (Read 82 times)

Haya94 · **on:** Jul 27, 2018

In a neutron star, the core is

A) primarily iron and silicon.
B) electrons and protons packed so tightly they are in contact.
C) made of compressed neutrons in contact with each other.
D) no longer rotating.
E) constantly expanding and contracting.

Question 2

According to our theory of solar system formation, what three major changes occurred in the solar nebula as it shrank in size?

A) Its gas clumped up to form the terrestrial planets, nuclear fusion produced heavy elements to make the jovian planets, and central temperatures rose to more than a trillion Kelvin.
B) It gained energy, it gained angular momentum, and it flattened into a disk.
C) It got hotter, its rate of rotation increased, and it flattened into a disk.
D) Its mass, temperature, and density all increased.