List the states in decreasing order of the kinetic energy possessed by molecules of a
given substance.

41.52 m

Explanation:

Using,

v = d/t Equation 1

v = speed of pulse of sound, d = distance travelled by the pulse of sound, t = total time taken.

From equation 1, make d the subject of the equation

d = vt Equation 2

Given: t = 0.12 s.

Constant: v = 346 m/s

Susbtitute these values into equation 2

d = 346(0.12)

d = 41.52 m