## Physics: Principles with Applications (7th Edition)

$3 \times 10^{11} kg$.
Use the density of granite (Table 10–1) and the given volume. Round to one significant figure. $$M=\rho V = (2.7 \times 10^3 kg/m^3)(10^8 m^3)\approx 3 \times 10^{11} kg$$