The total number of galaxies in our observable universe is
A) about ten million
B) about a hundred billion
C) infinite
D) a few trillion
Correct Answer:
Verified
Q54: If we compress the entire history of
Q55: Compared the Earth, the universe is
A) about
Q56: Atoms are held together by
A) the electrostatic
Q57: The part of the universe we can
Q58: Which subatomic particle or particles have no
Q60: The fundamental parameters of the universe are
Q61: A car uses gasoline to convert
A) potential
Q62: What kind of energy does sunlight possess?
A)
Q63: The energy associated with random atomic and
Q64: How does the wavelength (in a vacuum)
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