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.
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.
A U-tube contains liquid of unknown density. An oil of density 770 kg/m³ is poured into one arm of the tube until the oil column is 13.5 cm high. The oil-air interface is then 4.5 cm above the liquid level in the other arm of the U-tube. Find the density of the liquid. A raft is made of 11 logs lashed together. Each is 38.0 cm in diameter and has a length of 7.00 m. How many people (whole number)...