Problem P. 4057. (March 2008)
P. 4057. What percent of the surface of the Moon can be seen from that chinesse Moonprobe, which orbits about the Moon with a period of 127 minutes along a circular path. The shape of the Moon can be considered as a sphere.
(5 pont)
Deadline expired on 11 April 2008.
Statistics:
93 students sent a solution.  
5 points:  61 students. 
4 points:  3 students. 
3 points:  12 students. 
2 points:  12 students. 
1 point:  4 students. 
0 point:  1 student. 
