Two identical-looking 1.0-m-long pipes are each plugged
Chapter , Problem 16(choose chapter or problem)
Two identical-looking 1.0-m-long pipes are each plugged with of lead. In the first pipe, the lead is concentrated at the middle of the pipe, while in the second the lead is divided into two 5-kg masses placed at opposite ends of the pipe. The ends of the pipes are then sealed using four identical caps. Without opening either pipe, how could you determine which pipe has the lead at the ends?
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