A neutron passes by Earth at relativistic speed. Earth scientists observe the process of the neutron decaying into a proton, an electron, and a neutrino. Compared to the same type of process on Earth, earthbound observers would say that the process in the moving neutron

A. No process in another reference frame can be observed.
B. appears to happen faster.
C. appears to happen at the same rate.
D. appears to happen more slowly.


Answer: D

Physics & Space Science

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