A speed reducer uses a steel shaft that is 0.5 m long between bearing supports. Determine (a) the lowest critical speed of the shaft if the diameter of the shaft is 0.04 m: , (b) the shaft diameter required to double the critical speed: . (3 pts)

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false

Courses that are developed by subject matter experts, internal or extemal to the college or university. these programs are marketed by the school (clo2) marks a)-vocational schools b)-vendor training c)-colleges & universities d)-continuing education programs

Select any two (2) areas of applications of chain-drive. (clo4) a)-permanent lubrication necessary b)-hydraulic forklift truck operation c)-rigging and heavy moving materials d)-relatively high maintenance costs e)-costlier than belt drives