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.
Ans: D: All space is expanding so Hubble's law would apply around all galaxies.
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the magnetic field in the primed frame.
A. A B. B C. C D. D E. Toward the viewer F. Away from the viewer T. There is no field of this type.
When a vapor condenses into a liquid, its temperature
A) insufficient information, cannot answer B) rises. C) stays the same. D) falls.
If two objects are the same size, but one object has a temperature 3 times as hot (in Kelvin) as the other object, the hotter object emits
A) 3 times as much energy. B) 9 times as much energy. C) 12 times as much energy. D) 81 times as much energy. E) 27 times as much energy.
Scientists believe Saturn's moon Phoebe originated from a ____
a. large impact on Titan broke off a piece b. captured Kuiper belt object c. captured asteroid from the asteroid belt d. planetesimal that did not differentiate e. Galilean moon with an orbit that crossed into Saturn's orbit