$6\mathrm{.}2-14.$ Define two random processes by $x(t)=p_1(t+)$ and $Y(t)=p_2(t+)$ when $p_1(t)$ and $p_2(t)$ are both periodic waveforms with period $T$ and $$ is a random variable uniformly distributed on the interval $(0,T).$ Find an expression for the crosscorrelation function $E[x(t)Y(t+)].$