What must an architect consider when selecting stone to be used in a building?
What will be an ideal response?
When selecting the stone to be used in a building, an architect must consider a variety of parameters, including cost, strength, durability, hardness, grain and color, and texture and porosity.
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Energy costs vary greatly with energy source: coal @ $35.00/ton, gasoline @ a pump price of $2.75/gal, and electricity @ $0.100/kW·h. Conventional practice is to put these on a common basis by expressing them in $?GJ ?1. For this purpose, assume gross heating values of 29 MJ?kg?1 for coal and 37 GJ?m?3 for gasoline.
(a) Rank order the three energy sources with respect to energy cost in $?GJ ?1. (b) Explain the large disparity in the numerical results of part (a). Discuss the advantages and disadvantages of the three energy sources.
Use thin, hidden lines to represent all interior piers.
Answer the following statement true (T) or false (F)
The canal era of American history began in 1817 with the construction of the
A. Ontario Canal connecting New York and Canada (British North America). B. James River and Kanasha Canal from Virginia to Ohio. C. Wabash Canal in Indiana. D. Suez Canal in Illinois. E. Erie Canal in New York.
What factor causes the future value of an investment to differ from its present value?
A. ?return on investment B. ?payback C. ?interest rate D. ?principal