What do we call the distance labeled from a to b and what could we do to the note played on an instrument to change that distance?
a) from a to b is known as the wavelength and changing the pitch of the note will change its length.
b) from a to b is known as the amplitude and changing the loudness of the note will change its length.
c) from a to b is known as the wavelength and changing the amplitude of the note will change its length.
d) from a to b is known as the wave height and changing the amplitude of the note will change its length.

Correct answer choice is :

A) From A to B is known as the wavelength and changing the pitch of the note will change its length.

Explanation:

The amount or quantity of period within two things, points, lines, etc. the state or fact of existing separate in space, as of one thing from another; remoteness. a linear amount of space: Seven miles is a distance too great to walk in an hour. Distance is a scalar quantity describing the interval in two points. It is just the measure of the interval.

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .

3.2x10^7