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Solve the all given parts of following question:

Question: A spacecraft with circular (north and south sides) of diameter 325.0 m passes Earth moving eastward (in relation to you), at the speed of an electron whose kinetic energy is eleven times its rest energy.

Part I: Determine the speed of the spacecraft in units of c, the speed of light in vacuum?

Part II: What are the dimensions of the circular faces according to the earthbound observer?

Part III: According to this earthbound observer, what is lifetime od a copper-64 nucleus on the captain's worktable, in the spacecraft if a copper-64 nucleus at rest has a lifetime of 12.7 h?

I need proficient help in the above problems.

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