Problem P. 3858. (January 2006)
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?
(4 pont)
Deadline expired on February 13, 2006.
Statistics:
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 solutionss.
Problems in Physics of KöMaL, January 2006