(a) Suppose that an iron specimen, containing 0.09 atomic percent carbon is equilibrated at 720°C (993 K), and the rapidly quenched to 300°C (573 K). Determine the length of the time needed for one side of a plate?shape carbide precipitate to grow out by 10'3nm.
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Lumber can be flat sawn or radial sawn. Of the two, radial-sawn lumber is more wasteful of wood. Why then is it used?
What will be an ideal response?
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Groundwater is held in natural storage areas underground called _____
A) wells B) ponds C) aquifers D) aqueducts
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Men in the more settled agricultural groups in North America performed all of the following tasks EXCEPT
A. hunting. B. gathering fuel. C. tending crops. D. clearing fields for planting. E. fishing.
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Underground cable is laid in a trench dug by a trenching device
Indicate whether the statement is true or false
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