Serway & Jewett — Temperature: Problem 6

Review. Inside the wall of a house, an L-shaped section of hot-water pipe consists of three parts: a straight, horizontal piece $h = 28.0\text{ cm}$ long; an elbow; and a straight, vertical piece $\ell = 134\text{ cm}$ long (Fig. P18.6). A stud and a second-story floorboard hold the ends of this section of copper pipe stationary. Find the magnitude and direction of the displacement of the pipe elbow when the water flow is turned on, raising the temperature of the pipe from $18.0^\circ\text{C}$ to $46.5^\circ\text{C}$.