An ac circuit includes a resistor with RR $=125$ connected in series with a capacitor with CC $=7\mathrm{.}00$ FF$.$ The current through the resistor and capacitor is i$=(2\mathrm{.}40103$A$)$cos$[(1\mathrm{.}75103$rad$/$s$)$t$]$i$=(2\mathrm{.}40103$A$)$cos$[(1\mathrm{.}75103$rad$/$s$)$t$].$ Find the voltage across the resistor as a function of time.Find the capacitive reactance of the capacitor.