Ariver is flowing at 3.6 m/s. a boy in a tube is floating the river downstream. if the boy can use
his arms to paddle at 1.7 m/s with the current, how fast will it appear he is moving to anyone on
the riverbank?

The material that keeps its new shape after it is stretched is called?

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?

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.