Calculate the activation energy for the corrosion
For a steel furnace, silica refractories have corrosion rates of 2E-7 m/s at 1,345OC and 9E-7 m/s at 1,510OC. Calculate the activation energy for the corrosion of these silica refractories.
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The coinage metals-copper, silver, and gold-crystallize in a face center cubic structure. Use the density of copper of 8.95 g/cm^3 to calculate the atomic radius of copper.
Four balls, each of mass m, are connected by four identical relaxed springs with spring constant k. The balls are simulataneously given equal initial speeds v directed away from the center of symmetry of the system.
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Assume a flipping a coin has a 50 - 50 chance of heads or tails. You flip a coin until the first time it comes up tails. What is the probability that it will take exactly three flips.
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Magnesium deficiency is a common problem in the United States. Magnesium salts (e.g. Magnesium chloride) are more bioavailable than are magnesium oxide or magnesium hydroxide, which are commonly found in vitamin supplements.
A box contains 18 working transistor and 7 defective transistors. You select 5 transistors from this box and solder them onto a circuit board. If you solder any defective transistors onto the circuit board, the circuit will not function. What is t
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