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Imagine you decide to buy a farm and grow your own corn to produce ethanol that you can use in your car instead of gasoline. Assuming you drive 10,000 miles/yr, your car gets 25 miles per gallon, and it can run on pure ethanol. Also assume that one gallon of ethanol replaces one gallon of gasoline. (Most cars can't actually run on pure ethanol, but yours is special.) Assume that your land gets about 20 MJ m-2 of sunlight energy per day, that you can get one crop of corn per year, and it takes 100 days to grow the crop. Use information in the article by Sinclair for any other information that you think you need to do this problem.
A) How much land area would you need to produce all the fuel for your car?
B) Assuming ethanol has an energy content of 89 MJ/gallon, what is the overall efficiency of your ethanol production?
Now, imagine instead of growing corn, you decide to invest in photovoltaic panels. Assume each m2 of panel averages an output of 100 Watts over the course of a 10 hour day.
C) How many 1 m2 solar panels would you need to produce the same amount of energy in 100 days as your corn ethanol operation?
A) Estimate the settlement of 10ft and 5ft square footing.B) What is the factor of safety for the footing in above problem against bearing failure if the clay soil has an unconfined compressive strength of 3,600psf?
Try to put yourself in the position of Mr. Daniel Bayly. From the description of the case in the textbook, it appears that the primary concerns of Mr. Bayly and others at Merrill Lynch in considering this deal were economic and legal.
Create a research/term paper (2,500 words of content, plus cover, abstract, and reference pages) that relates a basic social psychological principle of health psychology).
How, exactly, does the status which society-at-large attaches to one's job affect one's job satisfaction?
The importance of Nitrogen cycles to the ecosystem in which it occurs to humans. Fully explain one way in which human activity altered this ecosystems. What is the activity? What effect does the activity have on the nutrient cycle you chose? What env..
After using classical conditioning to train a child to stand whenever a teacher calls their name, the child begins to stand whenever any adults refer to them. What has occurred?
Search the online library and find an academic or scholarly article about one of the concepts covered in this learning plan. Here is a list of possible topics:•Memory•Recall
Here is a short item on a controversial subject – one in which you may have a personal interest or investment: Since the attacks on American targets happened on September 11, 2001, Americans have been required by their government and by social pre..
in terms of sedimentary rock layers on a cliff face. At the bottom are grey shales containing plant fossils and a thin layer of coal. Second, a transition to quartz sandstone which displays ripple marks in places and the grains go from mid sized, to ..
Introduction to Psychology and the American Psychological Association website (www.apa.og) to review career possibilities for psychology majors. Determine which two careers interest you the most.
This mid-term project is worth 20% of your final grade and provides an opportunity for you to learn how to develop elements of a case analysis, such as identifying relevant medical facts and legal influences, stakeholder positions and motivations..
Exposure to mass media is the cultural universal that defines the modern world. Critically analyze the impact of mass media on gender roles in today's society
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