3. (Points: 5) The standing wave on a string of length 6m is shown in the Figure and is a result of the superposition of two waves. The string has a mass of 12g and is under a tension of 80 N. 0.5cm 15 35 -0.5cm a. (Points: 1.5) What is amplitude, wavelength, and frequency of the two waves producing this standing wave? 0.25b. (Points: 1) What is the amplitude of this standing wave at 0.2 m from either end? is (Points: 1) What frequency will produce a fundamental standing wave on this string? d. (Points: 1.5) What frequency will produce the standing wave shown if it is produced done inside an empty tube at room temperature 20C? 0. 012 kg 1.5 6 m