The velocity \( v \) of the antiprotons is \( 3.0 \times 10^{7} \, \mathrm{m/s} \), the magnetic field \( B \) is \( 100 \, \mathrm{T} \), the mass of the antiproton \( m \) is \( 1.67 \times 10^{-27} \, \mathrm{kg} \), and the charge of the antiproton \( q \) is
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