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bogdanovich [222]
3 years ago
6

A favorable entropy change occurs when δs is positive. what can be said about the order of the system when δs is positive?

Physics
1 answer:
iren2701 [21]3 years ago
7 0
<span>A favorable entropy change occurs when </span>δ<span>s is positive or when there is an increase in entropy. The concept of entropy tells us that isolated systems tend to go from order to disorder. That is, an increase in entropy means an increase in disorderliness. This is the natural tendency of things. </span>
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A guitar string is 0.620m long, and oscillates at 234Hz. What is the velocity of the waves in the string? m/s
9966 [12]

Answer:

v = 72.54 m/s

Explanation:

We have,

Length of a guitar string is 0.62 m

Frequency of a guitar string is 234 Hz

For guitar string,

L=2\lambda\\\\\lambda=\dfrac{L}{2}\\\\\lambda=\dfrac{0.62}{2}\\\\\lambda=0.31\ m

The velocity of the wave in the string is given by :

v=f\lambda\\\\v=234\times 0.31\\\\v=72.54\ m/s

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