Older railroad tracks in the u. s. are made of 12-m-long pieces of steel. when the tracks are laid, gaps are left between the sections to prevent buckling when the steel thermally expands.
1.if a track is laid at 16°c, how large should the gaps be if the track is not to buckle when the temperature is as high as 50°c?
Answers: 3
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Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.
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Older railroad tracks in the u. s. are made of 12-m-long pieces of steel. when the tracks are laid,...
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