A picture is taken of a man performing a polevault at the moment that the pole is bent the most(i. e. at the minimum radius of curvature), mea-sured to have a radius of curvature at this mo-ment of= 4:5m. If the pole has a diameterof40mm and hasE= 131GPa, determine themaximum bending stressmaxin the pole

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.

Atank with constant volume contains 2.27 kg of a mixture of water phases (liquid-vapor). in the initial state the temperature and the quality are 127 °c and 0.6, respectively. the mixture is heated until the temperature of 160 oc is reached. illustrate the process in a t-v diagram. then, determine (1) the mass of the vapor in kg at the initial state, (2) the final pressure in kpa.

What is creep? what is stress relaxation?