2.A standing wave pattern is formed on a string that is tied to a fixed end. The pattern produces 6 nodes. If the string is 5.5 m long and it takes

a crest of the wave 0.25 seconds to reach the end of the string; a) What is the frequency of the standing wave? b) How many nodes would be produced on this standing wave if the frequency was changed to 30 Hz (Assume the length and the speed of the wave stay the same as in part a) I