Ross wants to cultivate plants that require high levels of groundwater. however, the groundwater level on his field are very low. he uses perforated pipes to raise the groundwater level on his field. which irrigation system did he use?

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.