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Mechanical Properties Of Fluids

Question

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Why are woollen clothes warmer than cotton clothes?

Solution

Woollen clothes are warmer than cotton clothes because the woollen clothes have numerous pores enclosing a large quantity of air. The air being a bad conductor of heat does not allow the heat of body to conduct away.

Some More Questions From Mechanical Properties of Fluids Chapter

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?

Write down the expression for the instantaneous velocity and acceleration of particle vibrating in simple harmonic motion.

How do you define the mean position of particle executing simple harmonic motion?

Define amplitude.

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