Question
A certain steel railroad rail is 13 yd in length and weighs 78.8 lb/yd. How much...
A certain steel railroad rail is 13 yd in length and weighs 78.8 lb/yd. How much thermal energy is required to increase the length of such a rail by 3.3 mm? Note: Assume the steel has the same specific heat as iron. (Take the average coefficient of linear expansion for steel near room temperature to be 11 ✕ 10−6 (°C)−1.)
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