There is a uniform magnetic field of magnitude 2.8 T in the +z-direction. Find the magnitude F1 of the force on a particle of charge −1.9 nC if its velocity is 1.9 km/s in the y–z plane in a direction that makes an angle of 38∘ with the z-axis. F1= ?  Find the magnitude F2 of the force on the same particle if its velocity is 1.9 km/s in the x–y plane in a direction that makes an angle of 38∘ with the x-axis. F2=?

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