The fact that many of the larger Jovian moons orbit nearly in the equatorial plane of their host world, moving in the same direction as their planet's spin, suggest that they
A) formed from a rotating disk of gas and dust like a miniature solar system
B) were spun out from the rapidly spinning host world as it formed
C) formed elsewhere in the solar system and were later captured
D) were formed from a giant impact between the host world and another body
A
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Of the following, which of the following is the largest object?
a. the Milky Way galaxy b. the Large Magellanic Cloud c. the Local Group d. the Andromeda galaxy
Which of the following statements accurately describe a general distinction between the terrestrial planets (Mercury, Venus, Earth, Mars) to the jovian planets (Jupiter, Saturn, Uranus, Neptune)?
a. The jovian planets are much more massive. b. The terrestrial planets have a much greater average density. c. The terrestrial planets are rocky, and the jovian planets are composed of hydrogen, helium and hydrogen compounds. d. All of the above.
Faraday's law tells us that
A) moving charges create magnetic fields. B) charges create electric fields. C) a changing magnetic field creates an electric field. D) a changing electric field creates a magnetic field. E) magnetic fields create electric fields.
Superconductivity is lost when a certain __________ is exceeded
Fill in the blank(s) with correct word