An Alpha Particle (Mass = 6

question 19

Multiple Choice

An alpha particle (mass = 6.68 × 10−²⁷ kg) is emitted from a radioactive nucleus with a kinetic energy of 4.55 MeV.How fast is the alpha particle moving in m/s? (1 MeV = 1.6 × 10−¹³ J)

• A)3.84E+3 m/s
• B)1.48E+7 m/s
• C)1.04E+7 m/s
• D)3.82E+7 m/s
• E)​5.11E+6 m/s

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