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Paragraph: A subatomic particle X sponta...

Paragraph: A subatomic particle X spontaneously decays into two particles, A and B, each of rest energy `1.40xx10^(2)`MeV. The particles fly off in opposite directions, each with speed 0.827c relative to an inertial reference frame S.
Determine the total energy of particle A.

A

109 MeV

B

200 MeV

C

140 MeV

D

249 MeV

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • Paragraph: A subatomic particle X spontaneously decays into two particles, A and B, each of rest energy 1.40xx10^(2) MeV. The particles fly off in opposite directions, each with speed 0.827c relative to an inertial reference frame S. Determine the kinetic energy of particle B (relative to frame S).

    A
    109 MeV
    B
    206 MeV
    C
    140 MeV
    D
    249 MeV

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    A
    109 MeV/c
    B
    206 MeV/c
    C
    140 MeV/c
    D
    249 MeV/c

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    C
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