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Let’s imagine a scenario in which a hypothetical subatomic particle of mass 3.1 × 10-28 kg...

Let’s imagine a scenario in which a hypothetical subatomic particle of mass 3.1 × 10-28 kg at rest decays into a daughter hypothetical subatomic particle of mass 1.1 × 10-28 kg while emitting a photon. For simplicity, assume that the speed of the daughter particle is considerably lower than the speed of light.

a. calculate the energy of the photon, in joules

b. find the kinetic energy of the daughter particle in joules

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