Findthe “nano-index” or the ratio of surface atoms to total number of atoms for a solid graphite nanofiber. the graphite nanofiber is 10 nm in diameter and has a length of 100 nm. you could assume distance between the carbon atoms in graphite to be a = 0.142 nm.

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.

Inadequate stores control is not an obstacle to effective work order system. (clo4) a)-true b)-false

Derive the correction factor formula for conical nozzle i=-(1+ cosa) and calculate the nozzle angle correction factor for a nozzle whose divergence hal-fangle is 13 (hint: assume that all the mass flow originates at the apex of the cone.