In the mass spectrometer shown in the figure, a particle with charge =1.601019Ce=1.601019C enters a region of magnetic field BC that has a strength of 0.00219T0.00219T and points into the screen. The velocity v of the particle is confirmed with a velocity selector. The electric field E is 9.00104V/m9.00104V/m (down) and the magnetic field BV is 0.00670T0.00670T (into screen) in the velocityselector.

If the radius r of curvature of the particle is 4.00cm,4.00cm, calculate the mass mof the particle.

=m=