An astronaut on a planet with no atmosphere drops a feather into a 7.97m deep crater and records that the feather falls freely for 2.02s. What is magnitude of free-fall acceleration on the planet?
With what speed does the feather strike the bottom of the crater?

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.

Because the dept in the ocean