At a height of 2200m the meausred value gravity is9.795000m/s^2. The reference value ate sea level 9.800000m/s^2. Thecrust is 12 km thick with an estimated dansity 2.1 gr/cm^3 and themantle density 3.1 gr/cm^3. Calculate the free air, Bouguer andisostatic anomalies. For the latter use Pratt hypothesis for acylinder of radious 12 km and 40 km depth of compensation?