River models are used to study many different types of flow situations. A certain small river has an average width and depth of 65 ft and 7 ft, respectively, and carries water at a flow rate of 775 ft3 / s. A model is to be designed based on Froude number similarity so that the discharge scale is 250. At what width and flowrate would the model operate?

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.