Our modern theory of solar system formation—the nebular theory—successfully accounts for all the major features of our own solar system. However, when the first hot Jupiters were discovered, their existence seemed inconsistent with the nebular theory because this theory predicts that __________.
Fill in the blank(s) with the appropriate word(s).
jovian planets can form only in the cold, outer regions of a solar system
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For the titanium with a 2 % pre-strain in Figure 7.9, what grain size would result in a yield stress of 1000 MPa? You can use the results of Example Problem 7.2 to determine your answer.
What will be an ideal response?
Of all the Jovian planets, ________ shows signs of tectonic plate motion.
A. Uranus B. Neptune C. Jupiter D. Saturn E. None of these choices is correct.
The type of radiation affected by greenhouse gasses is
a. UV radiation. b. IR radiation. c. visible radiation. d. gamma radiation.
Ancient philosophers and astronomers accepted without question-as first principles-that:
A) heavenly objects must move in circular paths at varying speeds. B) the planets are made of rock and gas, much like Earth. C) the Earth is motionless at the center of the Universe. D) there are many galaxies in the Universe.