Calculate the diameter (D) of the crater formed by the explosive impact of a meteoroid having a mass of 6 × 109 kg and traveling with a velocity of 20 km/*.
log D = - 4.707 + 0.294 log E
Kinetic energy: E = 1/2m v2
E = 1/2 x 6 x 109 x 103(20 x 105)2
E = 1200 x 1022erg = (1200 x 1022)/107J
E = 1200 x 1015J
logD = - 4.707 + 0.294(1200 x 1015)
logD = -4.707 = 5.315 = 0.6082
D = 4.05km
