help me please with this test i dont know what im doing?

Victoria S

New member
6.Complete the following sentence: Resonance occurs in harmonic motion when
(a)the system is overdamped.
(b)the system is critically damped.
(c)the energy in the system is a minimum.
(d)the driving frequency is the same as the natural frequency of the system.
(e)the energy in the system is proportional to the square of the motion's amplitude.
 
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