Why is Jupiter (in our solar system) not considered to be a "hot Jupiter"?
What will be an ideal response?
Answer: Hot Jupiters are Jupiter-like planets that migrated inward to orbit their stars at very close distances, which is what makes their surfaces hot. This large inward migration did not occur in our solar system, perhaps because the nebular gas was cleared by the solar wind before that much migration could occur.
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______________ is the largest known asteroid
a. Pluto b. Mars c. Ceres d. Vesta e. Mercury
Aluminum-lithium alloys were developed for aircraft applications because of their relatively high yield strength and low _________.
Fill in the blank(s) with the appropriate word(s).
The centers of granules
a. are hot material rising to the photosphere from below. b. are cool material falling from the photosphere to the regions below. c. are fainter and hotter than their surroundings. d. are brighter and cooler than their surroundings. e. show strong Zeeman effects.
Electrical and gravitational forces follow similar equations with one main difference:
A) Electrical forces obey the inverse square law and gravitational forces do not. B) Gravitational forces obey the inverse square law and electrical forces do not. C) Electrical forces attract and gravitational forces repel. D) Electrical forces repel and gravitational forces attract. E) Gravitational forces are always attractive but electrical forces can be attractive or repulsive.