What happened to the quarks that existed freely during the particle era?
A) They combined in groups to make protons, neutrons, and their antiparticles.
B) They froze out of the soup of particles at the end of the era.
C) They evaporated.
D) They combined in groups to make electrons and neutrinos.
E) They combined in groups to make W and Z bosons.
Question 2
Before about 50,000 years after the Big Bang the universe was
A) radiation dominated.
B) quark dominated.
C) lepton dominated.
D) matter dominated.
E) dark energy dominated.
Happened to me today.
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If the particle moves in a circle of radius 0.15 m at a speed of 3.0 m/s, what is the magnitude ...
What was the bombarding particle used
What was the bombarding particle used