Which of the following materials has the highest coefficient of heat transfer?
A. aluminum alloy
B. cast iron
C. cast iron alloy
D. plastic
Answer: A
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Estimate the weight of water in a swimming pool on or near your campus.
What will be an ideal response?
____ looks to see that the weld is uniform in width and reinforcement.
A. Bend test B. Visual inspection C. AWS entry-level certification D. Knowledge test
Briefly discuss. Note: Cp = 4.185 J/g-K for water and 0.398 J/g-K for copper. Also, assume that the process occurs isobarically.
A copper block having a mass of 10 kg and a temperature of 800 K is placed in a well-insulated vessel containing 100 kg of water initially at 290 K. What will be the final temperature of the block and the entropy changes for the copper, the water, and the universe resulting from the process? Does this number (the entropy change of the universe) “make sense” to you?
Most jobs in social science require at least a two-year degree
Indicate whether the statement is true or false