to points) Palmetto Ag. Inc. recently purchased a new harvester. The new machine cost $180,000 of $50,000 per year. The machine has a five year expected life. The expected salvage values after-tax adjustments for the machine are given below, and the company's WACC is 11%. Based on the information below, should the firm operate the machine until the end of its 5 year physical life? If not, then when is its optimal economic life? and it is expected to generate net after-tax operating cash flows, including depreciation, Year Annual Net operating cash flow Salvage Value $180,000 50,000 50,000 50,000 50,000 50,000 $180,000 140,000 112,000 87,000 42,000 2 4