A non <span>foliated </span>rock has interlocking grains with no specific pattern.
PLEASE PRESS THE “Thanks!” BUTTON! :)
13 g —> 0.013 kg
KE = 1/2(m)(v)^2
KE = 1/2(0.013)(8.5)^2
KE = 0.47 J
Compression and rarefraction, the other guy's answer it's wrong