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Question: Individual industries will use energy as efficiently as it is economical to do so, and there are several incentives to improve the efficiency of energy consumption. To illustrate, consider the selection of a new water pump. The pump is to operate 800 hours per year. Pump A costs $2,000, has an overall efficiency of 82.06%, and it delivers 11 hp. The other available alternative, pump B, costs $1,000, has an overall efficiency of 45.13%, and delivers 12.1 hp. Both pumps have a useful life of five years and will be sold at that time. (Remember 1 hp = 0.746 kW.) PumpAwill use SL depreciation over five years with an estimated SV of zero.
Pump B will use the MACRS depreciation method with a class life of three years. After five years, pump A has an actual market value of $400, and pump B has an actual market value of $200. Using the IRR method on the after-tax cash flows and a before-tax MARR of 16.67%, is the incremental investment in pump A economically justifiable? The effective income tax rate is 40%. The cost of electricity is $0.05/kWh, and the pumps are subject to a study period of five years.
Find the value of the unknown quantity Z in the following diagram, such that the equivalent cash outflow equals the equivalent cash inflows when r = 20%.
If Enrico is more daring with his retirement investment savings and feels he can average 10% per year, how much will he have accumulated for retirement.
Consider the following tree solution for a minimum cost network flow problem: For what values of µ is this tree solution optimal? What are the entering?
You conduct a survey of a sample of 25 members of this year's graduating marketing students and find that the average GPA is 3.2.
Is Zener breakdown more likely to occur in a reverse-biased silicon or germanium pn-junction diode if the peak electric field is the same in both diodes? Please explain why it is one or the other.
In 1972, the maximum earnings of a worker subject to Social Security tax (SST) was $9,000. The maximum earnings subject to SST in 2012 is $110,100.
On May 1, a lazy MBA student suddenly realizes that he has done nothing on seven different homework assignments and projects that are due in various courses.
Wilbur is a college student who desires to establish a long-term Roth IRA account with $4,000 that his grandmother gifted to him.
Your potential profit for various purchase levels under each of the five possible market conditions is shown in the table below.
For the double sampling plan described in Problem, determine the following: The probability that the lot is rejected based on the first sample.
Juan deposits $5,000 into a savings account that pays 7.2% per year, continuously compounded. What is the effective annual interest rate?
A subassembly in an industrial robot consists of 12 components in series, each of which fails completely at random at a rate of once every 50 years.
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