Engineering practices include which of the following? Select all that apply. a. Choose one model and stay with it.
b. Plan and carry out investigations.
c. Conduct one test and record results.
d. Use mathematics and computational thinking.
e. Agree with team members.

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.