a company purchased an equipment system for $325000 on january 2. the company expects the equipment to last for eight years or 60000 hours of operation, with an estimated salvage value of $25000. during the first year, the equipment was in operation for 8000 hours, while in the second year, the equipment was in operation for 8600 hours. compute depreciation expense relating to the equipment for year 1 and year 2 using straight line method.

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to