Lone Star Sales & Service acquired a new machine that cost $84,000 in early January 2018. The machine is expected to have a five-year useful life and is estimated to have a salvage value of $14,000 at the end of its life. (Round your final answers to the nearest dollar.) (a.) Using the straight-line depreciation method, calculate the depreciation expense to be recognized each year.

(b.) Calculate both the accumulated depreciation and the net book value after the second year of the machine's life.