Two strings on a violin are stretched between two points 20.0 cm apart. The mass per length of the strings are the same. If the ratio of the frequencies of the fundamental modes is 1.5 to 1.0, then what is the ratio of the tensions in the strings?
A. 1.75
B. 1.88
C. 1.00
D. 1.25
E. 1.50
D. 1.25
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As a result of an anneal, the dislocation density is _________.
Fill in the blank(s) with the appropriate word(s).
The number of technological civilizations in our galaxy is limited by
a. the number of stars in our galaxy b. the fraction of stars with planets c. the number of planets per star in habitable zone longer than a few billion years d. the fraction of suitable planet where technical life forms evolve. e. All of the above.
Many scientists suspect that Venus has a stronger and thicker lithosphere than Earth. If this is true, which of the following could explain it?
A) the high surface temperature that has "baked out" all the liquid water from Venus's crust and mantle B) the smaller size of Venus, which has allowed it to lose much more internal heat than Earth C) the slow rotation of Venus D) the apparent lack of plate tectonics on Venus
When a large floating ice cube with unfrozen water inside melts, the water level in its container
A) goes down. B) remains unchanged. C) goes up.