1. A rock is kicked off the edge of a cliff that is 127 m high. If its initial velocity is 4.2 m/s in the horizontal direction, how far from the base
of the cliff will the rock land?

answer and explanation;

composition refers to both the types of minerals within a rock and the overall chemical makeup of the rock while texture refers to the size and arrangement of the minerals or grains that make up a rock. both composition and texture can be used to classify rocks, such as igneous rocks. texture describes how the rock became solid or crystallized from liquid, melted rock. composition of a rock describes the minerals that make up a particular rock.

I'm not sure what your asking buddy.. but i know that you can weld two peices of steel by pure force and pressure.