What is Ceres?
A) the largest known asteroid
B) the first asteroid to have been visited by a spacecraft
C) the largest moon of Pluto
D) a dwarf planet that orbits the Sun in the Kuiper belt beyond the orbit of Pluto
A) the largest known asteroid
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Current observations indicate that the amount of baryonic matter and dark matter in the universe
a. is sufficient great enough to overcome the expansion of the universe. b. implies that the universe is closed. c. is mostly in the form of black holes and quasars. d. are roughly equal. e. implies that the universe is open.
What is the purpose of interferometry?
A) It allows two or more small telescopes to achieve the angular resolution of a much larger telescope. B) It allows two or more small telescopes to achieve a larger light-collecting area than they would have independently. C) It is designed to prevent light pollution from interfering with astronomical observations. D) It reduces the twinkling of stars caused by atmospheric turbulence.
Three small objects are positioned at the following coordinates: the 3-0 kg object at (3.0 m, 2.0 m); the 4.0-kg object at (0.0 m, -1.0 m); and the 5.0-kg object at (5.0 m, -7.0 m). What are the coordinates of the center of mass of this system?
What will be an ideal response?
_______ Force is the force that keeps an object moving on a curved path that is directed inward towards the center of a rotation.
Fill in the blank(s) with correct word