Africa is 30.37 million km^2, and the average distance from a landmass to the bottom of the ocean is 4.179 KM, making the volume 126916230 Cubic KM, or 1.2691623e+17 Cubic Meters. Rock has a density of about 2700 KG/M, so, that makes Africa about 3.4267382e+20 Kilograms. Times 3 makes the total weight 1.0280215e+21 Kilograms.
Space is about 100 KM above earth, usually, sending it that distance in 6 seconds is 16666.6666667 Meters per Second, Mach 48.5908649174.
.5 times 1.0280215e+21 times 16666.6666667^2 is....
1.4278076e+29 Joules, 34.1254215797 Exatons, Moon level
It's also pretty high into lifting strength, now that I think about such things
Acceleration is Distance divided by time^2, so 100000 divided by 6^2 is 2777.77777778
1.0280215e+21 times 2777.77777778 is....
2.8556153e+24 Newtons, 2.9109228e+23 Kilograms, Class Z
Russia is 17.1 million KM^2, the average distance from a landmass to the bottom of the ocean is 4.179 KM, making the volume about 71460900 KM Cubed, or 7.14609e+23 Cubic Centimeters
Times 214.35 for pulverization is...
1.5317644e+26 Joules, 36.610047598 Petatons, Multi Continent level