Mass m=150grams hangs on a string whose other end is tied to the wall. The length L of the string between the wall and the pulley where it touches is 1.20m. The mass per unit length of the string when it is stretched is 3.2x10^-4kg/m Part a)calculate the speed of the wave in m/s. Part b)calculate the frequency of the fundamental mode of this string in Hz Part c)calculate the frequency of the third mode of this string in Hz

Mass m=150grams hangs on a string whose other end is tied to the wall. The length L of the string between the wall and the pulley where it touches is 1.20m. The mass per unit length of the string when it is stretched is 3.2x10^-4kg/m Part a)calculate the speed of the wave in m/s. Part b)calculate the frequency of the fundamental mode of this string in Hz Part c)calculate the frequency of the third mode of this string in Hz