Dark energy
A) has never been directly observed in the laboratory.
B) pushes on space.
C) has mass.
D) All of the above.
E) None of the above.
Correct Answer:
Verified
Q24: The big bang is thought to have
Q25: According to the principle of equivalence, gravity
Q26: Galaxies seem to be made mostly of
Q27: The evidence favors a universe whose overall
Q28: Since accelerations are equivalent to gravity, a
Q30: According to the theory of cosmic inflation,
Q31: In the equivalence principle,
A) all forces are
Q32: The cosmic microwave background is
A) caused by
Q33: One piece of evidence supporting the theory
Q34: Dark energy is made of
A) invisible electromagnetic
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