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A motor with a 200-horsepower output is needed in the factory for intermittent use. A Graybar motor costs $7000 and has an electrical efficiency of 89%. A Blueball motor costs $6000 and has 85% efficiency. Neither motor would have any salvage value, since the cost to remove it would equal its scrap value. The annual maintenance cost for either motor is estimated at $300 per year. Electric power costs $0.072/kWh (1 hp = 0.746 kW). If a 10% interest rate is used in the calculations, what is the minimum number of hours the higher initial cost Graybar motor must be used each year to justify its purchase?
(1) eliminate the deficit by cutting government spending and (2) eliminate the deficit but raising taxes. Which program has the least damaging effect on GDP. Just tell me how much GDP falls in each program and draw the correct conclusion.
Manke a graph showing the relationship between two variables, X and Y . Determine whether the relationship is negative or positive
The cost of pollution (in billions of dollars) originating in the paper industry is Cp = 2P + P2. Where P is the quantity of pollutants emitted (in thousands of tons). The cost of pollution control (in billions of dollars) for this industry is Cc ..
The director of a nonprofit foundation that sponsors 8-week summer institutes for graduate students analyzed the costs and expected revenues for the next summer institute and recommended that the session be canceled. In her analysis she included a..
If market demand is given by the functionQ=1000?P, where P denotes price, how many firms will operate in this long-run equilibrium?c) Suppose the government grants a lump-sum subsidy to each firm that manufactures the product. If this lump-sum su..
a tire manufacturer warranties its tires to last at least 20,000 miles or "you get a new set". In its experience, a set of these tires last on average 26,000 miles with a standard deviation of 5, 000 miles, Assume that the wear is normally distrib..
A team of carrying materials costs $ 15,000 and is expected to save 3,000 in operating costs the first year. The increase in operating and maintenance costs will reduce the net savings $ 250 per year until the equipment is replaced at the end of y..
In this economy, all production output goes to either consumption or savings. The saving rate is fixed at s where 0
Two accounting professors decided to compare the variance of their grading procedures. To accomplish this they each graded the same 10 exams with the following results: Professor - Mean = 79.3 Standard Deviation = 22.4
Suppose that 3 countries who form a cartel agreed to divide the oil market equally. Demand for oil is given by P=50-.1Q where P is the price of oil in dollars per barrel and Q is the Quantity in thousands of barrels per day.
a nation's rate in 2003 was 5%. It accumulated capital at a rate of 5% and added to its employment of labor at a rate of 5%. The proportionate increase in real GDP in response to a proportionate increase in capital was 0.2, and the proportionate r..
Statements Firm will finance a proposed investment by issuing new securities while maintaining its optimal capital structure of 60% debt and 40% equity. The firm can issue bonds at price of $950.00 before $15 flotation costs.
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