Shelli is a student describing the resonance of a metal beam. she demonstrates that the sound dims when the beam is vibrated at a certain frequency.
what does she most likely say in response to the dimming sound?
a “this is not the natural frequency of the beam.”
b “this is the natural frequency of the beam.”
c “the decibels are increasing.”
d “the amplitude is not increasing.”
Answers: 2
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