Chapter 8 - Exercises and Problems - Page 141: 14

Please see the work below.

We know that $g=\frac{GM}{r^2}$ We plug in the known values to obtain: $g=\frac{6.67\times 10^{-11}(0.330\times 10^{24})}{(2.44\times 10^6)^2}$ $g=3.7\frac{m}{s^2}$ (b) We know that $g=\frac{GM}{r^2}$ We plug in the known values to obtain: $g=\frac{6.67\times 10^{-11}(0.135\times 10^{24})}{(2.58\times 10^6)^2}$ $g=1.4\frac{m}{s^2}$