Fill in the blank in the following chemical reaction that occurs in theSun: Deuterium+proton = ?? + energy:
a) hydrogen-1
b) helium-3
c) deuterium-2
d) carbon-12
e) helium-4
Ans: b) helium-3
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Acceleration and velocity are
A) different names for the same idea. B) very different from each other. C) concepts developed by Aristotle. D) none of the above
The relative size of the atmosphere layer as compared to the solid part of Earth is most similar to:
A) the peel of an orange as compared to the meat of the orange. B) the rind of a watermelon as compared to the meat of the watermelon. C) the skin of a grape as compared to the meat of the grape. D) the meat of a peach as compared to the pit of the peach. E) the meat of a cherry as compared to the pit of the cherry.
Earth _______________ once a year around the Sun
Fill in the blank(s) with correct word
An uncharged spherical conducting shell surrounds a charge ?q at the center of the shell. Then charge +3q is placed on the outside of the shell. When static equilibrium is reached, the charges on the inner and outer surfaces of the shell are, respectively,
A. +q, ?q. B. ?q, +q. C. +q, +2q. D. +2q, +q. E. +3q, 0.