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Mechanical Resonance

Hi, I’ve been given a set of questions that requires me to do a lab but I don’t have the necessary materials to do it, so I’m trying to answer the questions using knowledge and deduction… problem is, I don’t have a very good grasp on mechanical resonance, so it would be great if any of you could help me out here.

Here’s the lab and its associated questions:


Thanks a bunch.
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Original post by velocitous
Hi, I’ve been given a set of questions that requires me to do a lab but I don’t have the necessary materials to do it, so I’m trying to answer the questions using knowledge and deduction… problem is, I don’t have a very good grasp on mechanical resonance, so it would be great if any of you could help me out here.

Here’s the lab and its associated questions:


Thanks a bunch.


This seems similar to a classic demo called 'Bartons pendulums'

There's plenty of explanations online afaik and youtubes

e.g. http://www.science-animations.com/support-files/pendulum.swf
also a simulation where you have to shake one of the support points http://www.science-animations.com/support-files/pendulum.swf
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​Thanks so much!
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I’ve done some digging into Barton’s Pendulum but I still can’t figure out how increasing the tension of the string on top would affect anything. Could anyone help me out here?
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bump...

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