Fusion of hydrogen nuclei is the origin of solar energy
a. True
b. False
Indicate whether the statement is true or false
True
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Which of these is the next evolutionary track for the Large Magellanic Cloud?
A) It will be free of our Local Group. B) contraction into a spiral C) collision with the Milky Way D) It will become a satellite galaxy of Andromeda. E) expansion into a giant elliptical
The figure shows a distance vs. time graph of an object with three distinct regions, I, II, and III
?
The object’s acceleration is zero in region(s)
a.
I.
b.
II.
c.
III.
d.
no regions
How do the energy level spacings for a particle in a box change when the box is made longer?
A. The spacings do not change. B. The spacings increase. C. The spacings decrease. D. There is insufficient information to answer this question.
How can the description of the atom given by the Schrödinger equations be visualized?
a. As a sphere with electrons distributed through a solid positively charged core, like a plum pudding. b. As a miniature solar system. c. As a nucleus surrounded by an electron cloud. d. As a positively charged nucleus connected to a negatively charged electron shell by a spring. e. An empty box with just one atomic particle in it.