P. 3858. We would like to increase the length of a 160 cm long copper rod of cross section 4 mm2 by 1 mm. What is the energy absorbed by the rod if
a) the rod is stretched;
b) the rod is heated?
Deadline expired on 13 February 2006.
Statistics on problem P. 3858. 210 students sent a solution.
4 points:109 students.
3 points:23 students.
2 points:44 students.
1 point:12 students.
0 point:6 students.
Unfair, not evaluated:16 solutions.