Question

As an oil well is drilled, each new section of drill pipe supports its own weight and that of the pipe and drill bit beneath it.


As an oil well is drilled, each new section of drill pipe supports its own weight and that of the pipe and drill bit beneath it.


Calculate the stretch, in millimeters, in a new 9.5 m length of steel pipe that supports 3.00 km of pipe having a mass per length density of 23 kg/m and a 125-kg drill bit. The pipe is equivalent in strength to a solid cylinder 5.00 cm in diameter with Young's modulus of 2.10 x 1011Pa.

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As an oil well is drilled, each new section of drill pipe supports its own weight and that of the pipe and drill bit beneath it.
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