Please answer part C and D using the following information. A $70\mathrm{.}0$ cm wire of mass $7\mathrm{.}8$g is tied at both ends and adjusted to a tension of $40\mathrm{.}0$ N$.$ When it is vibrating in its second overtone, find the frequency at which it is vibrating: $128$ Hz$.$ When it is vibrating in its second overtone, find the wavelength at which it is vibrating: $0\mathrm{.}467$m