The figure shows a schematic diagram of a simple mass spectrometer, consisting of a velocity selector and a particle detector and being used to separate singly ionized atoms (q= e=1.602 ·10^-19 C) of gold (Au) and molybdenum (Mo). The electric field inside the velocity selector has magnitude E=1.789 ·10^4  V / m and points toward the top of the page, and the magnetic field has magnitude B1=1.000  T and points out of the page. a) Draw the electric force vector, F⃗E, and the magnetic force vector,