Problea $2-30$ pointa $-$ Fielda and forcea involving iona and a polarizable neutral aolecule $[2$pts$]$ A magnesium ion $(M{g}^{2+})$ and a cakium ion $(C{a}^{2+})$ are lo$-$ cated in points A and $B,$ sepamted by a distance $2d$ along the z$-$axis as indicated in the schematic. What is eloctric force acting on the magrosium ion? Write your rosult symbolically, expessing charges in terms of the elemontary charge $.F_{\text{C}\text{a}\text{s}\text{o}\text{m}\text{g}}-[4$pts$.]$ Now a neutral mokcule $N_a$ with polarizability or is placed in the midpoint between the two ions. What is the net electric force ncting on this molecule, nnd what does the