Multiple Choice
If dark matter did not exist it is likely that:
A) the universe would expand forever
B) the universe would begin contracting soon
C) the night sky would be brighter
D) the night sky would be darker
E) we would be able to see the center of the universe
Correct Answer:
Verified
Correct Answer:
Verified
Q36: The color theory explains why quarks:<br>A)form particles
Q37: A baryon with strangeness 0 decays via
Q38: <span class="ql-formula" data-value="\pi"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>π</mi></mrow><annotation encoding="application/x-tex">\pi</annotation></semantics></math></span><span
Q39: Any meson is a combination of:<br>A)three quarks<br>B)two
Q40: Objects in the universe are receding from
Q42: Which of the following particles is stable?<br>A)Neutron<br>B)Proton<br>C)Pion<br>D)Muon<br>E)Kaon
Q43: What discovery in 1998 changed our understanding
Q44: Two particles interact to produce only photons,
Q45: The two basic interactions that have finite
Q46: The baryon number of a quark is:<br>A)0<br>B)-1/3<br>C)1/3<br>D)2/3<br>E)1