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A 1 . 8 0 - kg object attached to a spring moves without friction ( b = 0 ) and is driven by an

1.80 -

kg object attached to a spring moves without friction

(

= 0)

and is driven by an external force given by the expression F

= 4.50

sin

(2 (

)

),

where F is in newtons and t is in seconds. The force constant of the spring is

23.0

/

.

(

)

Find the resonance angular frequency of the system.

(

)

Find the angular frequency of the driven system.

(

)

Find the amplitude of the motion.

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