9.45. Show thiat for a cube of side a when under a volume stress AP the volume strain is ci AVIV 3Aala. 9.46. If two end points of a cable are at (x, YA) and (xg, Ys), show that the span L is given by L = X8 - Y. = 8dTJw, where d is a function of y-yg- %3D mm diametecr It is clamped at the upper end and a 5-kg mase