a) amplitude A = 0.65 m
b)
w = 8.4
frequency
f = w/1pi
f = 1.337 Hz
c)
Total energy
TE = 0.5 xm x(AW)2
TE = 17.14167 J
d)
PE = 0.5 xkx X2
PE = 0.5 m w^2 x0.36x0.36
PE = 5.5258 J
KE = TE-PE
KE = 11.8835 J
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