Jupiter and Saturn are so massive that they were able to grow by drawing in hot gas by gravitational contraction from the solar nebula
a. True
b. False
Indicate whether the statement is true or false
False
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What is postulated to have caused a sudden inflation of the early universe?
A) the energy absorbed by giant quantum fluctuations B) the energy released from the "freezing out" of the strong force from the GUT force C) the energy released from the annihilation of matter and antimatter D) the energy absorbed by the separation of the electromagnetic and weak forces E) the energy released in the fusion of protons and neutrons to produce helium
The particle theory of light, as well as the wave theory of light, are both supported by the interference of light
Indicate whether the statement is true or false
Why does the riddle say that Earth is not in a special spot?
A: The Sun is at the center of the universe, but the Earth is not. B: The Big Bang explosion sent all material blasting away from the Earth. C: Hubble's law applies to some galaxies but not to others, so many planets besides Earth have their own Hubble's law. D: All space is expanding so Hubble's law would apply around all galaxies. E: Hubble measured the expansion law from the Moon, not from the Earth.
In our location in the Milky Way, the galactic disk is only about ________ ly thick
A) 10 B) 100 C) 1,000 D) 10,000 E) 100,000