$$ f =(6.67 \ times10^{-11} \ text {n $ \ cdot $ m}^2/\ 텍스트 {kg}^2) \ frac {3 \ times700 \ text {kg}} {(0.140 \ text {m})^2} =\ boxed {1.26 \^^{{^} n}} $$
$$ f =(6.67 \ times10^{-11} \ text {n $ \ cdot $ m}^2/\ 텍스트 {kg}^2) \ frac {3 \ times700 \ text {kg}} {(0.140 \ text {m})^2} =\ boxed {1.26 \^^{{^} n}} $$
