Vật dao động với phương trình 5cos(4pit+pi/6) tìm thời điểm đi qua vị trí biên dương lần thứ 4

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.

The magnets would be | n s | and | s n|

It really doesn't matter for any of the questions that you've listed.