A cube of metal with sides of length a sits at rest in a frame S with one edge parallel to the x-axis. Therefore, in S the cube has volume a3 . Frame S′ moves along the x-axis with a speed u. As measured by an observer in frame S′, what is the volume of the metal cube?

A cube of metal with sides of length a sits at rest in a frame S with one edge parallel to the x-axis. Therefore, in S the cube has volume a3 . Frame S′ moves along the x-axis with a speed u. As measured by an observer in frame S′, what is the volume of the metal cube?

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Question

A cube of metal with sides of length a sits at rest in a frame S with one edge parallel to the x-axis. Therefore, in S the cube has volume a³ . Frame S′ moves along the x-axis with a speed u. As measured by an observer in frame S′, what is the volume of the metal cube?

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