Four simple harmonic vibrations x_(1) = 8 sin wt, x_(2) = 6sin(wt+pi/2), x_(3)=4sin(wt + pi) and x_(4) = 2sin(wt+(3pi)/2) are superimposed on each other. The resulting amplitude and its phase difference with x_(1) are respectively. Four simple harmonic vibrations x_(1) = 8 sin wt x_(2) = 6sin(wt+pi/2) x_(3)=4sin(wt + pi) and x_(4) = 2sin(wt+(3pi)/2) are [...]