The proton synchrotron at Fermi lab accelerates protons to the kinetic energy of around 950 GeV. At this energy, compute (i) the speed, stated as a fraction of the speed of light; and (ii) the magnetic field at the proton orbit that consists of a radius of curvature of 750 m. (The proton consists of a rest energy of 938 MeV; it is essential to employ relativistic formulas here.)