A puck with mass 0.28 kilogram moves in a circle at the end of a string on a frictionless table, with radius 0.75 meter. The string goes through a hole in the table, and you hold the other end of the string. The puck is rotating at an angular velocity of18 rad/s when you pull the string to reduce the radius of the puck's travel to 0.55 meter. Consider the puck to be a point mass. Find what is the new angular velocity of the puck?