Using the Earth’s natural energy sources is considered to be: ____
a. limiting c. exploitative
b. sustainable d. impossible
B
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Which of the following is similar to a refrigeration-cycle dehumidifier?
Hansus Enterprises is a start-up small business specializing in software systems for machine-based high-school student tutoring in science and math. Sheryl Hansus, the owner, has spoken with lenders to obtain a loan of $50,000 now (year 0), and the same amount in years 3 and 6. Two different repayment schedules are available. They are:
Schedule A: Pay a uniform amount of $19,500 in years 3 through 12. Schedule B: Pay a uniform amount of $20,000 in years 1 through 6, with “balloon” payments of an additional $20,000 in year 2 and a final amount of $40,000 in year 7. To assist in the decision of which schedule to select, determine the following using a spreadsheet: (a) Total amount repaid for each schedule. Which is smaller? (b) The equivalent annual worth of the loan amounts and of the repayments at i = 5% per year over a 12-year evaluation period. Which schedule has the smaller loss per year? Why is this the case?
Two common configurations of gauge manifolds are the two-valve manifold and the four-valve manifold. The valves are __________ when turned counter-clockwise and __________ when turned clockwise.
A. closed, open B. open, closed
Normal alkaline soils are characterized by all but which one of the following?
A) low levels of available manganese B) low levels of available boron C) high levels of exchangeable sodium D) high levels of molybdenum E) low levels of available iron