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At 500oC, the diffusion coefficient of Cu in Ni is 1.3 x 10-22 m2/s, and the activation energy for diffusion is 256,000 J/mol. From this information, determine the diffusion coefficient of Cu in Ni at 900 oC. (R = 8.314 J / (mol K)) 0oC = 273 K

5 L of air at 122 kPa and 20 oC was compressed by an air compressor applying 185 kJ/kg flow work increasing the pressure to 1,076 kPa. Calculate the final temperature in oC

The Eco-Marathon is an annual competition sponsored by Shell Oil, in which participants build special vehicles to achieve the highest possible fuel efficiency.

What system of units is superior, SI, BG, or EE? Why?

Two monitoring wells were constructed in an unconfined aquifer. The wells are separated by a distance of 250 ft. The water surface elevations in the up-gradient and down-gradient wells were 101.00 ft and 100.85 ft, respectively.

What s the difference between buying a modded account or buying a booster for gta online

An exercise room has six weight-lifting machines that have no motors and seven treadmills, each equipped with a 2.5-hp (shaft output) motor. The motors operate at an average load factor of 0.7, at which their efficiency is 0.77.

How do you define a renewable energy source? Why are coal, oil, and natural gas not renewable energy sources?

Which of the following properties or characteristics do not apply to metals (two correct answers) : (a) good thermal conductivity, (b) high strength, (c) high electrical resistivity, (d) high stiffness, and (e) ionic bonding?

You are asked to look into adding a circuit for a new pump in a hydraulics lab. After some investigation of the electrical service in the building you find that there are a few voltage options; 120V, single-phase; 208V, single-phase; 208V, 3-phase.