You must design a pin-ball machine such that a 30 g marble is propelled up a slope of 2.0 m at an incline of 15˚ and has a coefficient of friction of 0.20. The spring is compressed 18 cm when a player
pulls the plunger back the maximum amount. What does the spring’s force constant need to be to
accomplish this task? Briefly explain your steps. [8]

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.