Merrimack Community Clinic purchased a new generator having the following characteristics: Cost. $17,000 Estimated useful life (years). 4 Residual value.. $7,000 Estimated hours of use during useful life. 5,000 Assume the clinic uses the straight-line method of depreciation Compute depreciation expense for year 1. $2,500 (11) Assume instead that the clinic uses the double-declining-balance method of depreciation. Compute depreciation expense for year 1. $1,063 (111) Assume instead that the clinic uses the units-of-activity method of depreciation. Compute depreciation expense for year 1 assuming the following: Hours of use during year 1 2,200 $4,400 18 119 20 21