You observe a star very similar to our own Sun in size and mass. This star moves very slightly back and forth in the sky once every four months, and you attribute this motion to the effect of an orbiting planet
What can you conclude about the orbiting planet? A) The planet must have a mass about the same as the mass of Jupiter.
B) The planet must be closer to the star than Earth is to the Sun.
C) The planet must be farther from the star than Neptune is from the Sun.
D) You do not have enough information to say anything at all about the planet.
B
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Which concept is being illustrated when a tablecloth is quickly yanked beneath dishes resting on a table?
A) equilibrium B) friction C) support force D) inertia
In size and mass, irregular galaxies tend to be ________ than spirals
Fill in the blank(s) with correct word
Why do the jovian planet interiors differ?
A) Accretion took longer further from the Sun, so the more distant planets formed their cores later and captured less gas from the solar nebula than the closer jovian planets. B) They differ due to giant impacts at the late stages of planet formation. C) The more distant planets had longer to form than the closer planets, since the solar nebula lasted longer at greater distances from the Sun. D) The more distant planets formed in a cooler region of the solar nebula and therefore contain a greater proportion of ices than the closer jovian planets.
Elements that display some properties of both metals and nonmetals are called ______________
Fill in the blank(s) with correct word