Find the speed an alpha particle requires to come within 2.6 × 10^?14 m of a gold nucleus. Coulomb's constant is 8.99 × 10^9 N · m2/C2, the charge on an electron is 1.6 × 10?19 C, and the mass of the alpha particle is 6.64 × 10^?27 kg. Answer in units of m/s Find the energy of the alpha particle. Answer in units of MeV