2. A long string of mass 4.0g/m is joined to a long string of mass 1.0g/m and the com- bination is held under constant tension. A transverse sinusoidal wave of amplitude 3.0 cm and wavelength 25 cm is launched along the heavier string. Calculate the wavelength and amplitude of the wave when it is traveling along the lighter string. What is the solution of the wave in the heavier string, and its transverse fre- quency (these may be in terms of a sine of cosine function)?