Compute the Jacobian Matrix of the following :[ x ; = [ L1q1 + L2cos(q2) + L3cos(q2+q3) ;y ; L2sin(q2) + L3sin(q2+q3) ;z ] -L2cos(q2) - L3sin(q2 + q3) ]

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.

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

Two slings are used to lift a girder of length l and uniform weight per unit length. what is the best position for the slings if the bending moment due to the weight of the girder is to be kept to a minimum?