Two strings on a violin are stretched between two points 20 cm apart. The tensions 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 mass per lengths in the strings?
A. 0.80
B. 0.90
C. 0.85
D. 0.94
E. 0.78
A. 0.80
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Fill in the blank(s) with correct word
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Einstein theories tell us that the speed of light
A) depends on one's frame of reference. B) is constant in all frames of reference. C) provides accurate clocks. D) slows in a transparent medium.
The precession of Earth's axis takes about _____ for one cycle
A) 10,000 years B) 12,000 years C) 26,000 years D) 30,000 years