Which characteristic accounts for the fact that red lights in dark rooms and DO NOT expose negatives during developing?

Who was the first scientist to measure speed as distance over time?

Which subatomic particle has a negative charge

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.