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3 years ago

7

A long string is pulled so that the tension in it increases by a factor of four. If the change in length is negligible, by what

factor does the wave speed change?

1 answer:

rusak2 [61]3 years ago

3 0

To solve this problem we will apply the concepts related to wave velocity as a function of the tension and linear mass density. This is

$v = \sqrt{\frac{T}{\mu}}$

Here

v = Wave speed

T = Tension

$\mu$ = Linear mass density

From this proportion we can realize that the speed of the wave is directly proportional to the square of the tension

$v \propto \sqrt{T}$

Therefore, if there is an increase in tension of 4, the velocity will increase the square root of that proportion

$v \propto \sqrt{4} = 2$

The factor that the wave speed change is 2.

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Explanation:

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Now the amount of heat required to vaporize 0.5 kg of water:

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The density of the woman is calculate as;

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Density of the woman = 950.8 kg/m³

Therefore, the density of the woman is 950.8 kg/m³

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3 years ago