A beam of doubly ionized lithium atoms (Li+2) is accelerated through a potential difference of 25.0 kV, after which they move perpendicular to a uniform 1.20-tesla magnetic field inside a mass spectrometer. They make a half revolution in the mass-spec before hitting a detector. Natural lithium has isotopes 6Li (mass 6.015 u) and 7Li (mass 7.016 u). 1) How far apart on the detector do the beams of 6Li and 7Li land? 2) How long does it take for an 6Li ion to make its half revolution inside the mass-spec?