A piece of selenium is illuminated by ultraviolet light and emits electrons via the photoelectric effect that starts at a speed of 1.88 x 10^5 m/s. These electrons are then caused to accelerate between the plates of a capacitor at a rate of 2.11 x 10^14 m/s2.

(a) How fast are they traveling after 9.73 x 10^-9 s?

(b) At this acceleration and with this initial speed, how long would it take these electrons to reach a speed of 3.78 x 10^6 m/s?