In the process of planetary formation, when would the inward migration of Jupiters have most likely occurred?
A) shortly after all of the planets had finished forming
B) just after the system was cleared of the remaining gas
C) before these planets had grown to full size
D) after these planets had reached full size, but before terrestrial planets had finished forming
E) at least hundreds of millions of years after planetary formation ended
D
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Energy Levels: What frequency must a photon have to raise an electron in a hydrogen atom from the n = 2 to the n = 4 state? (h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J)
A. 3.06 × 1014 Hz B. 6.16 × 1014 Hz C. 4.11 × 1014 Hz D. 5.20 × 1014 Hz E. 9.24 × 1014 Hz
Which of the following resources are all considered nonrenewable?
-rivers and waves -coal, oil, and natural gas -natural fibers and forest products -plants and animals -wind energy, solar energy, and natural gas
At what temperature is the Celsius temperature and the Fahrenheit temperature are same?
A. 30
B. 35
C. -40
D. 45
E. -30
Exclusion Principle: A hydrogen atom is in the 6h state. What is the principal quantum number.
A. 0 B. 3 C. 5 D. 6 E. 7