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An astronaut is standing in a spacecraft parallel to its direction of motion. An observer on the earth finds that the spacecraft speeds is 0.60c and the astronaut is 2 m tall. What the astronaut height is as
measured in the spacecraft?
OA. 1.6m
O B. 2.5 m
O c. 3.125 m
OD. 1.28 m
OE. 2 m

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