In a cyclotron, an electromagnet exerts a force of 7.50x10-13N on a beam of protons. Each proton has a mass of 1.67x10-27kg. The electromagnet causes the protons to travel in a circular path of radius 1.20m. What is the velocity of the proton beam?

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  1. I assume that your force is the force perr proton.

    Mp*V^2/R is the force, 7.50x10^-13 N.

    Mp is the proton mass. Solve for V

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