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Mhs ex. 2011
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MHS
fisicarildo.blogspot.com
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.( )
2,0
.( )
1 10,5
2
I F
T s
II V
f HzT
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.( )
2 2.3.0,5 3,0 /
III V
f rad s
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.
.( )
0,5.3 1,5 /MÁx
IV V
V A m s
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2 2 2
.( )
. 0,5.3 4,5 /
Re .:
V V
a A m s
sp D
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2 1
2-
mT 2 ; 2.
kK K
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22 1
1 2
1
2 1
m2
k 1
2m2
k
2( )
2
T k
T k
T T E
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M c p
3
(1)( )
E E E
V
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(2)( )
mT 2
k
F
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(3)( )
0
F
X
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(4)( )
a = ².A
(máxima)
F
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2
P
(5)( )
k.AE
2
F
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• Nas extremidades A e B a energia cinética e nula e a energia potencial
• elástica e máxima.• No centro 0 a energia potencial elástica e
nula e a energia cinética e• máxima.• Resposta: A
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• x = 4,0 m Ep = 80,0 J = Em⇔