Respostas

2014-08-30T22:27:06-03:00
Epg = m.g.h

Epg = 2.10.0,8

Epg = 16 J
2 4 2
2014-08-30T23:12:39-03:00
U=m*g*h
U=2*10*0,80
U=16J :.
1 5 1