An object placed at a distance farther from a converging lens than the focal point always produces an image that is
A. The same size as the object
B. Inverted
C. Virtual
D. Smaller than the object
B. Inverted
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The bond energy of a pair of atoms is equal to the depth of the interatomic potential at the ______________interatomic separation.
Fill in the blank(s) with the appropriate word(s).
We do not know for certain whether the general trends we observe in stellar birth masses also apply to brown dwarfs. But if they do, then which of the following would be true?
A) Brown dwarfs would outnumber all ordinary stars. B) Brown dwarfs would be responsible for most of the overall luminosity of our Milky Way Galaxy. C) Brown dwarfs would be extremely rare. D) Most of the brown dwarfs in the Milky Way Galaxy would be quite young in age.
A block of ice at 0°C is added to a 150. g aluminum calorimeter cup that holds 200. g of water at 10°C. If all but 2. g of ice melt, what was the original mass of the block of ice?
A) 47.6 g B) 38.8 g C) 62.2 g D) 42.0 g E) 31.1 g
As a stream flows downslope, if discharge doubles but the cross-sectional area of the channel stays the same, what happens to the average stream speed?
A) Average stream speed stays the same. B) Average stream speed decreases. C) Average stream speed increases. D) Stream flow stops.