Multiple Choice
The formation of more protons than neutrons (at about a 7:1.ratio) was favored in the early universe because
A) it takes more energy to create a neutron from a proton than a proton from a neutron.
B) it takes more energy to create a proton from a neutron than a neutron from a proton.
C) the more massive neutrons made better targets for nucleon collisions.
D) the positively charged protons were repelled away from the explosion.
Correct Answer:
Verified
Correct Answer:
Verified
Q63: Compared to a clock at the bottom
Q64: The modern theory of dark energy arises
Q65: Space and time are<br>A)bound together.<br>B)independent entities.
Q66: According to calculations made by modern astronomers,the
Q67: If the Sun suddenly became less massive,what
Q69: General relativity is most concerned with<br>A)acceleration.<br>B)gravitation.<br>C)space-time geometry.<br>D)all
Q70: Dark Matter is matter that<br>A)cannot be seen,felt,or
Q71: Relativity is the<br>A)study of how space,energy,and mass
Q72: A person on the ground floor of
Q73: If you were to travel at a