Một mẫu thử có đường kính d=20mm, chiều dài thử l0=200mm chịu một lực kéo P= 45MN Độ dãn dài đàn hồi đó được l=200,017mm. hãy tính môđun đàn hồi khi kéo E

What precautions should you take to prevent injuries when dealing with heavy loads?

Which one from below is not one of the reasons of planning failures? (clo3) a)-planner is careless. b-planner spend less time in the field but more time on the desk c)-planner is not qualified d)-planner does not have sufficient time to properly plan

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.