You are holding a rock tied to a string, which is an example of a pendulum. identify and explain the proper term for each part of the pendulum in this example.

Explanation:

In the diagram attached as an image:

Rock tied to a string is called bob.

The end from which the string is held is known as Point of suspension(S).

The distance between the point of suspension to the center of the gravity of the rock is the length of the pendulum(L).

nacl is added to the aqueous of what? ? in order to get a proper answer you have to specify the exact composition of the aqueous solution.