For what reason was Pluto demoted from full planetary status in 2006?
A) because of objects as large or larger than Pluto in the Kuiper belt
B) because Pluto resides outside of the zone that can truly be described as the solar system
C) because Pluto was discovered to be a twin planet system
D) because according to the standard definition, no planet can be smaller than the Earth's moon
Answer: A
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The following images show four planets in our solar system. Rank these planets from left to right based on the number of moons that orbit them, from highest to lowest. (Not to scale.)
What will be an ideal response?
The planet ______________ contains more than half the mass of the solar system not in the Sun
Fill in the blank(s) with correct word
Where did Earth’s (interior) heat come from?
a. volcanoes b. accretion and differentiation as Earth formed c. radioactivity d. all of the above e. b and c
The fundamental frequency of CO is 6.42 × 10^13 Hz. If the atomic masses are 12 u and 16 u (1 u = 1.66 × 10^?27 kg), find the force constant (in N/m) for the diatomic molecule
a. 970 b. 1 530 c. 1 850 d. 480 e. 47