In order to predict whether a star will eventually fuse oxygen into a heavier element, what do you need to know about the star?
A) its luminosity
B) its overall abundance of elements heavier than helium
C) how much oxygen it now has in its core
D) its mass
D
You might also like to view...
Tomatoes have a higher specific heat capacity than dough. This means that when you bite into a hot pizza
A) the dough feels hotter than the tomato sauce. B) the tomato sauce feels hotter than the dough. C) since sauce and dough are at the same temperature, neither feels hotter.
What is the difference between an emission and a reflection nebula?
A. Generally, emission nebulas appear blue, and reflection nebulas look red. B. Emission nebulas contain many dying stars; reflection nebulas are stellar nurseries. C. Emission nebulas give off their own light; reflection nebulas reflect the light of nearby stars. D. All of these choices are correct.
Two isotopes have the same
a. mass number b. neutron number c. atomic number d. quantum number e. none of the above
In a compound microscope the final image is virtual
Indicate whether the statement is true or false