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A spaceship whose rest length is 280 m h...

A spaceship whose rest length is 280 m has a speed of 0.94c with respect to a certain reference frame. A micrometeorite, also with a speed of 0.94c in this frame, passes the sapceship on an antiparallel track. How long does it take this object to pass the ship as measured on the ship?

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The correct Answer is:
`0.94mus`
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