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Mechanical Properties of Fluids
Question
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Why are mud-houses colder in summer and warmer in winter?

Answer

Clay is a poor conductor of heat as compared to wood and bricks. Therefore, clay neither allows the external heat to enter the house in summer nor it allows the internal heat to escape out in winters.
Hence, mud houses remain colder in summer and warmer in winter.  

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Some More Questions From Mechanical Properties of Fluids Chapter

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.

What is the net displacement of the particle executing simple harmonic motion in one complete oscillation?

Are all the periodic motions simple harmonic?

Does the time period of particle vibrating in simple harmonic motion depend upon its displacement?

Where will the particle executing simple harmonic motion have acceleration maximum and speed zero?

What is the average velocity of the particle executing simple harmonic motion over one complete oscillation?