[填空题]
(a) Show that the density of nuclear matter is essentially the h80qu*r m8 p/a 0rlatusame for/8 gs0 /osgzno all nuclei.gn/ o/s8gz0os $\rho$ = $ \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}$
