2017//3(a)//Engineering Eco//KU

A remotely situated fuel cell has an installed cost of $2,000 and will reduce existing
surveillance expenses by $350 per year for eight years. The border security agency’s MARR is 10% per year.
i. What is the minimum salvage (market) value after eight years that makes the fuel cell worth purchasing?
ii. What is the fuel cell’s IRR if the salvage value is negligible?

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2017//2(b)//Engineering Eco//KU

A loan of $10,000 is to be repaid over a period of eight years. During the first four years, exactly half of the loan principal is to be repaid (along with accumulated compound interest) by a uniform series of payments of A1 dollar per year. The other half of the loan principal is to be repaid over four years, with accumulated interest, by a uniform series of payments of A2 dollar per year, If i=9% per year, what are A1 and A2?

Testing servo motor with arduino

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