On what variable factors do the period and speed of an object in circular orbit depend?

The speed and time period of the motion depend on the object's radius of motion and the mass of the object.

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.

Milliseconds. . . . . .