Q1. The potential difference between the plates of a capacitor is 70 V. Midway between the plates; a proton and an electron are released. The electron is released from rest. The proton is projected vertically toward the negative plate with an initial speed. The proton strikes the negative plate at the same instant that the electron strikes the positive plate. Ignore the attraction between two particles, what was an initial speed of the proton?

Q2. The magnitude of the vector is 45.0 units and points in the direction 386 counter clockwise from the positive x-axis. Calculate the x-component of this vector.