The information of an asset is given below. If the asset will be needed for 6 years, what would the salvage value of the end of 6 years have to be, for the annual worth to be the same as it is for one life cycle of the asset? Use an interest rate of 10% per year. Assest Information
First Cost $ -18,000 -18,000
Annual Cost/ year -11,000 -11,000
Salvage value 4000 ?
Life, years 4 6

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false