[填空题]
(a) Show that the denbi2mo ckly-./ru(tr ebfaie8gtrom 9q53a,9 q7e /* xsity of nuclear matter is essentially the same for all nuclf teemri/73x uo,ra5er(* aq 9bt9 gq8ei. $\rho$ = $ \times 10^{17}\ \text{kg/m}^3$
(b) What would be the radius of the Earth if it had its actual mass but had the density of nuclei? R = m
(c) What would be the radius of a $_{92}^{238}\text{U}$ nucleus if it had the density of the Earth? $r_{\text{U}} = $ $ \times 10^{-10}\ \text{m}$
