Author Question: Einstein's mass-energy equivalence () is important to the first phases of the big bang in explaining ... (Read 99 times)

viki · **on:** Jul 27, 2018

Einstein's mass-energy equivalence () is important to the first phases of the big bang in explaining how____.

a. gamma ray photons create matter and antimatter
b. stable protons and neutrons can exist below a certain temperature
c. antimatter can exist
d. matter became more prevalent than antimatter
e. the Universe expanded rapidly

Question 2

Astronomers refer to the dark center of a sunspot as a(n) ____

a. spicule
b. flare
c. penumbra
d. umbra
e. eye