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Electrons in an x-ray tube are accelerated to 0.65cc. The beam then travels 1.0cmcm to a...

Electrons in an x-ray tube are accelerated to 0.65cc. The beam then travels 1.0cmcm to a target.

Part A

What is this distance in the frame of the electrons?
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Distance in the frame of electrons was found to be 0.253cm

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