I pull 8m of rope to lift a barrel with a weight of 300N a distance of 2m off the ground using a pulley system. Assuming there is no friction:

a) How much work did I do?

b) How much force must I have used to pull on the rope?

c) What is the Mechanical Advantage of my pulley system?

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.

Scissors and a seesaw both cut things that’s the only comparison