A box is cubical with sides of proper lengths L1 _ L2 _
Chapter 26, Problem 26.32(choose chapter or problem)
A box is cubical with sides of proper lengths L1 _ L2 _ L3, as shown in Figure P26.12, when viewed in its own rest frame. If this block moves parallel to one of its edges with a speed of 0.80c past an observer, (a) what shape does it appear to have to this observer? (b) What is the length of each side as measured by the observer?
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