A long rod with a circular cross section is made of titanium (E = 113.8 GPa, G = 42.4 GPa). The rod is subjected to an axial load of 13 kN. The longitudinal strain in the rod is measured to be 670 mirco-m(m)/(m)m. What is the change in the diameter of the rod? Express your solution in units of microns. (i.e. if you type an answer of 123, that means 123 x 10-6m = 0.123mm),