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Question: A single-stage centrifugal blower is to be selected for an engineering design application. Suppliers have been consulted, and the choice has been narrowed down to two new models, both made by the same company and both having the same rated capacity and pressure. Both are driven at 3,600 rpm by identical 90-hp electric motors (output). One blower has a guaranteed efficiency of 72% at full load and is offered for $42,000. The other is more expensive because of aerodynamic refinement, which gives it a guaranteed efficiency of 81% at full load. Except for these differences in efficiency and installed price, the units are equally desirable in other operating characteristics such as durability, maintenance, ease of operation, and quietness. In both cases, plots of efficiency versus amount of air handled are flat in the vicinity of full rated load. The application is such that, whenever the blower is running, it will be at full load. Assume that both blowers have negligible market values at the end of the useful life, and the firm's MARR is 20% per year. Develop a formula for calculating how much the user could afford to pay for the more efficient unit.
(Hint: You need to specify important parameters and use them in your formula, and remember 1 hp = 0.746 kW.)
Consider a family that ranks combinations of household production time (N) and purchased goods and services (Y) according to the formula: U= NY. Suppose the maximum time available in a day is 16 hours, the wage rate is $4 per hour and the fa..
Produce the profit maximizing level of output and therefore there will be no deadweight loss associated with this production.
Describe how a firm in a Monopoly market maximizes its profits and minimizes its losses in the short term and in the long term. Can a Monopoly make a profit in the long term?
2.What factors could cause the monopolies to end? Is there a difference between
abc corp. owns a piece of land and building a few miles from its headquarters. the land originally cost abc 500000 to
instructions unless otherwise stated all true or false questions require graphical illustration. properly drawn graphs
Consider the two regressions in Table 2 based on the U.S. data for 1946 to 1975. (Standard errors are in parentheses.) The objective of Hanushek and Jackson's study was to find out the effect of defense expenditure on other expenditures in the econom..
Topic: Reforming the financial system. Pick a sub-topic within this general topic area. It must be a minimum of 7 pages long (basic text), double-spaced, and typed. Title pages, bibliography, etc., are extra.
A 10 % increase in the price of soda leads to a 20 % increase in the quantity of iced tea demanded. It appears that: When economists are sketching examples of a demand or supply curve that is close to horizontal, they refer to that demand or supply c..
Put yourself in the narrator's situation. how would you have reacted to sonny's problems with addition over the years? would this compare or contrast to the way Baldwin's narrator dealt with his brother's problems?
Explain the difference between active and passive monetary policy.
1.What are perfect subtitutes? Give some real world examples. What dotheir indifference curves look like? Can you give a utility function for perfectsubstitutes? 2.What are perfect complements? Give some real world examples. What dotheir indifference..
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