Inertial frame $S^{\prime}$ moves at a speed of $0.65 c$ with respect to frame $S$ (Fig. 37-9). Further, $x=x^{\prime}=0$ at $t=t^{\prime}=0$. Two events are recorded. In frame $S$, event 1 occurs at the origin at $t=0$ and event 2 occurs on the $x$ axis at $x=3.0 \mathrm{~km}$ at $t=4.0 \mu$ s. According to observer $S^{\prime}$, what is the time of (a) event 1 and (b) event $2 ?$ (c) Do the two observers see the same sequence or the reverse?