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 cm long, an elbow, and a straight vertical piece ? = 149 cm long (figure below). 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 18.0C to 48.9C. (Assume a coordinate system with it's origin at the elbow, the +x-axis to the right in line with the horizontal pipe and the +y-axis going upward.)

1. magnitude ______ mm

2. direction ______ (clockwise from the +x-axis)