What fraction of the available octahedral positions
The Corundum crystal structure, found in the compound Al2O3, consists of an HCP arrangement of o^(-2) ions; the Al ^(3) ions occupy octahedral positions. What fraction of the available octahedral positions are filled with the Al ^93) ions?
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A projectile is fired at angle of 30 from the horizontal with an initial velocity of 55 m/s. Find. 1. The horizontal velocity of the particle at the top of its flight.
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Compute the concentration of carbon at 0.2 mm from the carbon-free surface of the 1030 steel bar after 1 hour in vacuum at 1000 degrees Celsius. Take the initial carbon concentration of the 1030 steel bar to be 0.3 wt%.
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