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Question: Reconsider Problem. In order to reduce the heating cost of the hot water, it is proposed to insulate the side and bottom surfaces of the container with 5-cm-thick fiberglass insulation (k = 0.035 W/m.K) and to wrap the insulation with aluminum foil (ε = 0.1) in order to minimize the heat loss by radiation. An estimate is obtained from a local insulation contractor, who proposes to do the insulation job for $350, including materials and labor. Would you support this proposal? How long will it take for the insulation to pay for itself from the energy it saves? Evaluate air properties at a film temperature of 23°C and 1 atm pressure. Is this a good assumption?
Problem: Reconsider Prob. 9-44. In order to reduce the heating cost of the hot water, it is proposed to insulate the side and bottom surfaces of the container with 5-cm-thick fiberglass insulation (k = 0.035 W/m.K) and to wrap the insulation with aluminum foil (ε = 0.1) in order to minimize the heat loss by radiation. An estimate is obtained from a local insulation contractor, who proposes to do the insulation job for $350, including materials and labor. Would you support this proposal? How long will it take for the insulation to pay for itself from the energy it saves? Evaluate air properties at a film temperature of 23°C and 1 atm pressure. Is this a good assumption?
Explain the difference between hardware and software. Why should a manager care about software and how software works? What critical organizational and competitive factors can software influence
how to Write and run a Java program that, given a distance in metres, outputs that distance in kilometres rounded to the nearest whole kilometre.
XML provides a method for data to be transferred between systems. Specify at least three components of an XML document. Analyze how each component ensures data reliability and validation.Identify at least two e-Commerce systems that provide XML da..
write a four to fivenbsp page paper in which youdescribe what a relational database is and why relational databases are
the aim of this assignment is for you to think about the appropriateness of different kinds of conceptual models that
Investigate the manner in which three of the six mind-set and behavioral changes impact IT leadership's ability to promote change in an organization.
conduct a comparison of three uml modeling tools of your choice.your paper should include the following headers and
assume that intList1 and intList2 are list containers.
Share experiences have you had in terms of user security in past jobs or as a student? Do you feel the user security was effective in those situations? What will you have done differently in light of what you've learned about data security.
Briefly describe your group project reflections (some of the challenges encountered) in designing your e-business website
the bookstore staff at pleasant creek community college works hard to satisfy students instructors and the schools
Flash is a popular tool to enhance site interactivity. I require recommendations for how to integrate Flash into a website effectively. Under what circumstances would you use Flash over an HTML editor?
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