If a young protostar with a disk is rotating and shrinking. how much faster is it rotating after its size has decreased by a factor of 4? (enter an integer, as in it will be rotating times faster). (3 pts)

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.