Stereolithography is to be used to build the part in Figure below. Dimensions of the part are shown in detail. The laser beam diameter = 0.175mm, and the beam can be moved across the surface of the photopolymer at = 600mm/s. Layer thickness = 0.15mm. Compute an estimate of the time required to build the part, if 8s are lost each layer to lower the height of the platform that holds the part. Neglect post-curing time.

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

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.

Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.