Q10

X X X X X In the mass spectrometer shown in the figure, a particle with charge -e = -1.60 x 10-19 C enters a region of magnetic Velocity Selector X X X field Bc that has a strength of 0.00205 T and points into the X screen. The velocity u of the particle is confirmed with a X X X velocity selector. The electric field E is 9.00 x 104 V/m X X X X X X (down) and the magnetic field By is 0.00690 T (into screen) in the velocity selector. X X If the radius r of curvature of the particle is 4.00 cm, kg calculate the mass m of the particle. m =