Suppose a stringed instrument has three strings ( A , B , and C ) with lengths 0.45 , 0.6 , 0.75 , m , a linear mass density of 4.5 x 10 ^ - 4 kg / m , and tension forces of 60 , 80 , and 100 N respectively. Which strings should be plucked and in what order to play frequencies 177 Hz , 82 Hz and 127 Hz