Which of the descriptions below is an example of resonant energy transfer? (Choose all that are...

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Physics

Which of the descriptions below is an example of resonant energytransfer? (Choose all that are correct.)
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Hint 1.
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Review natural frequency and resonance.
Which of the descriptions below is an example of resonant energytransfer? (Choose all that are correct.)
A block sliding on a horizontal surface slows down and comes toa stop due to the friction force.
Soldiers marching in unison on a bridge with their steps at afrequency that is very different than the naturalvibration frequency of the bridge.
A vibrating pendulum connected to a very similar secondpendulum influences the vibration of the second pendulum. Theamplitude of vibration of the first pendulum decreases and theamplitude of the second increases. This exchange of amplitude andenergy keeps happening back and forth between the twopendulums.
Ultrasound machines are used to apply a variable force at afrequency that matches the natural frequency of gall stones,causing the gall stones to vibrate and break up.
A box is pushed with a constant force down an empty abandonedhallway and its speed increase.

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Hi there Here are the options from the list that are examples of resonant energy transfer A Ultrasound machines are used to apply a variable force at a frequency that matches the natural frequency of gall stones causing the See Answer

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