Problem P. 4775. (November 2015)
P. 4775. Thin copper and iron strips are riveted together along their length to form a bimetallic strip. The distance between the two strips is 1 mm. The bimetallic strip is flat at the temperature of \(\displaystyle 0\;{}^\circ\)C. What will the radius of the bent strip be at a temperature of \(\displaystyle 200\;{}^\circ\)C?
(4 pont)
Deadline expired on December 10, 2015.
Statistics:
106 students sent a solution.  
4 points:  77 students. 
3 points:  19 students. 
2 points:  5 students. 
1 point:  3 students. 
0 point:  1 student. 
Unfair, not evaluated:  1 solution. 
