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Mechanical Properties Of Fluids

Question

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How earthquakes some times cause disaster?

Solution

When the waves produced during earthquake have same frequency as that of the natural frequency of buildings, resonance takes place.
As a result, the buildings start vibrating with large amplitude and the amplitude is so large that the buildings collapse. In this way the earthquakes cause big disaster.

Some More Questions From Mechanical Properties of Fluids Chapter

What is periodic motion?

What is an oscillatory motion?

What is time period?

Define frequency.

What is the condition for motion to be simple harmonic motion?

In the displacement equation y = r sin(ωt/ + ϕ) what does ϕ called and what information does it give?

What determines the natural frequency of an oscillator?

Is there any relation between uniform circular motion and simple harmonic motion?

What is periodic motion?

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