It is found that a 5.70 m segment of a long string contains three complete waves and has a mass of 180 g. the string is vibrating sinusoidally with a frequency of 55.0 hz and a peak-to-valley distance of 19.0 cm. (the "peak-to-valley" distance is the vertical distance from the farthest positive position to the farthest negative position). calculate the wavelenght.