One night it snows so that the snow on the lawn has a uniform depth of 19.5 cm. what volume of snow is on the lawn, in cubic centimeters?

The volume of snow on the lawn is 7414.875 cubic centimeters

Explaination:

The shape of the snow is assumed to be a cube

Therefore, the volume of the snow is the cube of its uniform depth

Uniform depth = 19.5 cm

Volume = (uniform depth)^3 = (19.5 cm)^3 = 7414.875 cm^3

diagram is missing, but i will try to explain your doubt.

answer:

amplitude is the maximum displacement or distance moved on a point of a vibrating body or wave measured from its equilibrium position.it is equal to half the length of vibration path.