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A beam of protons moves through a uniform magnetic field with magnitude 2.0 T, directed along the positive z-axis. The protons have a velocity of

A beam of protons moves through a uniform magnetic field with magnitude 2.0 T, directed along the positive z-axis. The protons have a velocity of magnitude 3.0 × 10 5 m/s in the xz –plane at an angle of 30 o to the positive z-axis. Find the magnitude and direction of force on the proton.

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