Three-dimensional viewing normally involves
A) parallax.
B) two-eye vision.
C) an ability to see 'around' things.
D) all of the above
E) none of the above
Answer: D
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A string fixed at both ends is vibrating in one of its harmonics. If we now increase only the frequency at which the string is vibrating, which of the following characteristics do we also increase? (There could be more than one correct choice.)
A) the speed of the traveling waves on the string B) the period of the traveling waves on the string C) the wavelength of the traveling waves on the string D) the amplitude of the traveling waves on the string E) none of the above
A small piece of debris that burns up in the atmosphere is called a
A) meteor B) meteorite C) asteroid D) meteoroid
The ______________electrons of an atom are the electrons in an incomplete electron shell that are outside of a spherically symmetric closed electron shell corresponding to an inert-gas atom.
Fill in the blank(s) with the appropriate word(s).
The element barium should produce compounds most similar to those of
a. sodium. b. nitrogen. c. carbon. d. calcium.