Which of the following best illustrates sound science?
A) Asking voters to determine if windmills should be placed in their community
B) Measuring wind velocities to determine the cost-effectiveness of windmills in a region
C) Selecting a source of energy based upon profitability and yield of tax dollars
D) Lobbying government officials to increase drilling for offshore oil
B
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How many significant factors are there in the following analysis? How many variables were there in the original analysis?
How much electricity is generated by a photovoltaic system consisting of 14 modules? The system has an efficiency of 14%, and each module has an effective area of 1.4 m2 . The photovoltaic system is located in New York with an average solar radiation of 4.5 kWh/m2 /day.
What will be an ideal response?
Which of the following equations accurately expresses the relationship between weight, mass, and gravity?
A.
B.
C.
D.
gravityAn angular distance measured east or west of a prime meridian is termed
A) Greenwich distance. B) zenith. C) latitude. D) longitude.