Charles Augustin de Coulomb (1736-1806) derived the law named after him (Coulomb's Law) in 1785 from his work using a torsion balance. To which of the following did this work most contribute?

This chart shows characteristics of three different types of waves. which statement is best supported by the information in the chart? wave x and wave y are mechanical waves, and wave z is an electromagnetic wave. wave x and wave y are electromagnetic waves, and wave z is a mechanical wave. wave x and wave z are electromagnetic waves, and wave y is a mechanical wave. wave x and wave z are mechanical waves, and wave y is an electromagnetic wave.