Iwant to know how to find the above question..

For the magnitude of F,
We know,
Young Modulus = Stress / Strain
2 * 10^9 = Force / Area * length /extension
2*10^9 = Force / 3.14* (0.05)^2 * 150 / 5
( In case you are confused about how i got the area, i simply used the formula pi * radius squared. Note that I have converted mm into cm)
2*10^9= Force / 7.85 *10^-3 * 30
30*Force = 2*10^9* 7.85*10^-3
Force = 15.7 *10^ 6/30
Force = 523333.3 N
That's your answer Hope u understood it ☺

Alinear relationship would look like a straight line on the graph. it could have a positive negative or 0 slope. so it could be a line potentially going in any direction but it must be perfectly straight.

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.