Why were scientists surprised when they first discovered the existence of planets with Jupiter-like masses orbiting close to their stars (the "hot Jupiters")?
A) The nebular theory predicts that jovian planets should only form at much larger distances from their stars.
B) The surface temperatures of these planets seemed inexplicably high.
C) They had expected to detect small, terrestrial planets before large, jovian planets.
D) The orbits of these planets did not follow Kepler's laws of planetary motion.
A) The nebular theory predicts that jovian planets should only form at much larger distances from their stars.
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A perfectly black body at 100°C emits light of intensity I that has the strongest intensity near wavelength ?
The temperature of this body is now increased to 200°C. (a) In terms of I, what is the intensity at which this hotter body radiates? (b) In terms of ?, near what wavelength does light radiated from this hotter body have the strongest intensity?
COHESIVE FORCES are
A) repulsive forces between unlike molecules. B) repulsive forces between like molecules. C) attractive forces between unlike molecules. D) attractive forces between like molecules.
The atmosphere of Saturn is composed mostly of
A) methane and ammonia. B) carbon dioxide and ethane. C) hydrogen and helium. D) hydrogen sulfide and ammonia. E) nitrogen and oxygen.
What is the maximum depth from which a pump on the surface can "suck" up water?
What will be an ideal response?