A proton located at the origin is accelerated in the $$ direction for a brief time. $($a$)$ How much time passes before a detector located at $<0\mathrm{.}2,0,0>$ m detects a radiative electric eld? s $$ Save for Later Attempts: $0$ of $6$ used Submit Answer Using multiple attempts will impact your score. $40\%$ score reduction after attempt $3($b$)$ What is the direction of the radiative electric eld observed at this location?