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A slitter for sheet sandpaper owned by Abbotsford Abrasives (AA) requires regular maintenance costing S7500 per year. Every five years it is overhauled at a cost of $25 000. The original capital cost was $200 000, with an additional $25 000 in non-capital expenses that occurred at the time of installation. The machine has an expected life of 20 years and a $15 000 salvage value. The machine will not be overhauled at the end of its life. AA pays taxes at a rate of 45% and expects an after-tax rate of return of 10% on investments. Given that the slitter is in the MACR$ 7-year property class, what is the after-tax annual cost of the slitter?
1000 kj of heat are added to 10 kg of saturated liquid ethanol at 78.4degc and 1 atm. at these conditions the latent
Calculate the heat transfer per kilogram of air between sections (1) and (2), and the stagnation pressure at section (2).
Calculate the force required to punch out a rectangular hole 100m x 50mm in a 2mm thick aluminium sheet. The ultimate strength in shear is 125 MN/m^2.
The specific heat at constant pressure of ethylene is approximately 1.71 kJ/kg K over the temperature range of the reactants.
a pressure cooker closed tank contains water at 200 f with the liquid volume being 110 of the vapor volume. it is
two reversible power cycles are arranged in series. the first cycle receives energy by heat transfer from a reservoir
What is the annual energy demand for a building in Denver, Colorado, if the peak heat load is 150,000 Btu/h based on a design temperature difference of 75°F? Internal heat sources are estimated to be 20,000 Btu/h, and the design building interior ..
what is the corresponding simultaneous two-phase energization sequence?
an electric hot plate is maintaned at a temperature of 350 and is used to keep the solution just boiling at 95. the
the atmosphere on maris is comprised of mostly carbon dioxide at a pressure of 600 pa that is not a mistake it is in
12 lbm of carbon c reacts with 24 lbm of oxygen o2 to form 22 lbm of carbon dioxide co2 plus an unknown amount of
saturated water vapor at 300 kpa undergoes an isothermal process in a closed system until it becomes a saturated
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