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Andrew [12]
3 years ago
15

What shape is the unit cell of ruby?

Physics
1 answer:
sleet_krkn [62]3 years ago
7 0
Ruby, a variety of the mineral corundum is in the trigonal crystal system, with hexagonal scalenohedra crystals
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d = 1700 meters

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During a rainy day, as a result of colliding clouds an observer saw lighting and a heard thunder sound.  The time between seeing the lighting and hearing the sound was 5 second, t = 5 seconds

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