S
schwartz73
Guest
When a single, large star explodes in a supernova explosion, approximately how bright does it shine on average?
a. A few billion times brighter than our Sun, enough to outshine a small dwarf galaxy
b. 100 to 200 billion times brighter than our Sun, as bright as the Milky Way Galaxy
c. A few hundred thousand to a million times brighter than our Sun, as bright as a typical globular cluster
d. Several trillion times brighter than our Sun, as bright as a very large galaxy
e. About 500 times brighter than our Sun, as bright as a small open star cluster
Which of the following is the best description of the interior structure of a highly evolved high-mass star late in its lifetime but before the collapse of its iron core?
a. The interior consists almost entirely of carbon, with a small iron core.
b. Uranium, thorium, and plutonium collect in the core, eventually triggering a nuclear explosion.
c. An onion-like set of layers forms, with the heaviest elements in the innermost shells surrounded by progressively lighter ones.
d. Chemical elements are randomly mixed throughout the interior.
e. The elements within the star's interior are arranged in a uniform mixture of hydrogen and helium, with a coating of iron.
The formation of what kind of core ultimately leads a massive star to become a supernova?
a. Silicon
b. Carbon
c. Iron
d. Helium
Thanks for any help.
a. A few billion times brighter than our Sun, enough to outshine a small dwarf galaxy
b. 100 to 200 billion times brighter than our Sun, as bright as the Milky Way Galaxy
c. A few hundred thousand to a million times brighter than our Sun, as bright as a typical globular cluster
d. Several trillion times brighter than our Sun, as bright as a very large galaxy
e. About 500 times brighter than our Sun, as bright as a small open star cluster
Which of the following is the best description of the interior structure of a highly evolved high-mass star late in its lifetime but before the collapse of its iron core?
a. The interior consists almost entirely of carbon, with a small iron core.
b. Uranium, thorium, and plutonium collect in the core, eventually triggering a nuclear explosion.
c. An onion-like set of layers forms, with the heaviest elements in the innermost shells surrounded by progressively lighter ones.
d. Chemical elements are randomly mixed throughout the interior.
e. The elements within the star's interior are arranged in a uniform mixture of hydrogen and helium, with a coating of iron.
The formation of what kind of core ultimately leads a massive star to become a supernova?
a. Silicon
b. Carbon
c. Iron
d. Helium
Thanks for any help.