The universe as a whole is
A) curved.
B) flat.
C) the shape of a saddle.
D) has yet to be determined,although most astrophysical data points to a flat universe.
Correct Answer:
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Q11: Fire a cannonball from a cannon and
Q17: The "Big Bang" refers to the
A)point in
Q18: The difference between lightwaves approaching and lightwaves
Q19: Cosmic background radiation refers to
A)uniformly distributed residual
Q20: The formation of more protons than neutrons
Q23: In a 1-g gravitational field,in 1 s,a
Q24: A strong gravitational field
A)slows a clock.
B)speeds up
Q25: According to cosmic inflation theory,the distribution of
Q26: General relativity is most concerned with
A)acceleration.
B)gravitation.
C)space-time geometry.
D)all
Q27: According to Alan Guth,magnetic monopoles are not
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