Consider an automobile dealership with three locations. data fields exist for stock number, vehicle identification number, make, model, year, color, and invoice cost. identify the possible candidate keys, the likely primary key, a probable foreign key, and potential secondary keys.

Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.