Using nonrelativistic physics, calculate the approximate speed of an electron moving with a kinetic energy of 1 joule. The mass of an electron is 9.109 × 10-19 kg.
a) 1.05 × 10⁶ ms
b) 5.37 × 10⁵ ms
c) 2.15 × 10⁶ ms
d) 4.29 × 10⁵ ms