An alpha particle (mass = 6.68 *10^-²⁷ kg) is emitted from a radioactive nucleus with an energy of 6.22 MeV. How fast is the alpha particle moving in m/s? (1 MeV = 1.6 *10^-¹³ J)

Question

Quizplus · Accepted Answer

The kinetic energy (KE) of the alpha particle is given by KE = 0.5 * m * v^2. Converting 6.22 MeV to joules gives 6.22 * 1.6 * 10^-13 J. Solving for v using the mass of the alpha particle and the converted energy gives approximately 1.73 * 10^7 m/s.

An Alpha Particle (Mass = 6