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 team of design students working on a mousetrap-powered vehicle decides to use computercompact discs as wheels. The discs are lightweight and readily available.
A package is dropped from a helicopter moving upward at 14.50 m/s. If it takes 17.0 sec before the package strikes the ground, how high above the ground was the package when it was released (Disregard air resistance)?
A satellite P is in a circular oribt of radius rho around a fixed mass O. How much energy is required to change to an elliptical orbit of eccentricity e and semimajor axis a?
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.
A projectile is fired at angle of theta from the horizontal with an initial velocity of Vo. The projectile strikes the ground 5 seconds later at a horizontal distance of 200m. Determine the speed (Vo) with which the projectile was fired, and wha
Two kilograms of zinc at 500C and 1 atmosphere is contained in a thermally insulated jacket. The system is compressed reversibly to a pressure of 15,000 atmosheres. Calculate the temperature change in the process.
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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