A solenoid is designed to produce a 2.79×10-2 T magnetic field near its center. It has a radius of 1.40 cm and a length of 40.0 cm , and the wire carries a current of 12.0 A. a)How many turns must the solenoid have?n=turnsb)What total length of wire is required to make this solenoid?L=m

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.