Respostas

2014-08-18T20:53:41-03:00
A)10cm=0,1m
F=k.x
F=50.0,1
F=5N

b)Epel=k.x²/2
Epel=50.0,1²/2
Epel=50.0,01/2
Epel=0,5/2
Epel=0,25J
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