Given the acceleration for a simple pendulum is
. If the acceleration of
the pendulum bob at maximum displacement is 2.5 m s−2
.
(a) Determine its
(i) angular frequency
(ii) period
(iii) amplitude.

(b) Sketch and label a graph of
(i) acceleration against displacement
(ii) displacement against time​

The answer is b.the gaseous state is electrically positive, while the plasma state is electrically negative. 

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.