please answer this questions

Q1: Consider the following accounting information for a computer system: Cost basis of asset, I = $20,000 Useful life, N = 10 years Estimated salvage value, S = $0 Determine the optimal time to switch from Double Declining Balance to Straight Line depreciation and the resulting depreciation schedule. Q2: A lumber company that cuts ne woods for cabinetry is evaluating whether it should retain the current bleaching system or replace it with a new one. The relevant costs for each system are known or estimated. Use an interest rate of 10% per year to perform the replacement analysis. Currents stem First cost? came. 5 450.000 _ First Cost, $ _ Remainin life. ears __ Cunent market value. $ _ Annual keratinCesta$ rr ear Future salvae, $ _ -ve value shows cash outow whereas +ve value shows cash inow. Q3: On January 2, 2004, the Allen Flour Company purchased a new machine at a cost of $82,000- Installation costs for the machine were $3,000. The machine was expected to have a useful life of 10 years, with a salvage value of $3,000. The company uses straight-line depreciation for nancial reporting. On January 3, 2007, the machine broke down and an extraordinary repair had to be made to the machine at a cost of $8,000. The repair extended the machine's life to 13 years but left the salvage value unchanged. On January 2, 2010, an improvement was made to the machine in the amount of $5,000 that increased the machine's productivity and increased the salvage value (to $6,000) but did not affect the remaining useful life. Determine depreciation expenses every December 31\" for the years 200-4, 200? and 2010. Q4: As a project manager, you are being asked to design a power generating utility to meet the energy demand of your area. Discuss your ideas by keeping in mind the four major phases of project life cycle, power system planning and load forecasting. Q5: If $2000 is invested now, $2500 two years from now and $3000 fours years from now at an interest rate of 6% compounded annually, what will be the total amount in 10 years