The flow rate in a rough-concrete trapezoidal channel (n=0.022) with a 3.5 ft bottom width and side slope m=2 is 185 ft3/sec. the channel bed slope is 0.012. determine the uniform depth and critical depth for this given channel and flow rate conditions.

When using the ohmmeter function of a digital multimeter, the leads are placed in what position relative to the component being tested? a. parallel b. control c. series d. line

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.

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.