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mylen [45]
3 years ago
15

Can anyone check if my answer is correct ?

Physics
1 answer:
ohaa [14]3 years ago
4 0

I believe your answer is correct, because 8.7*10^-7 is equal to 0.00000085347.

Hope you do well!

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At which of the following air temperatures will the
monitta

Answer:

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3 years ago
A piano string having a mass per unit length equal to 4.70 10-3 kg/m is under a tension of 1 400 N. Find the speed with which a
sweet [91]

Answer:

The speed of the sound wave on the string is 545.78 m/s.

Explanation:

Given;

mass per unit length of the string, μ = 4.7 x 10⁻³ kg/m

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The speed of the sound wave on the string is given by;

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

where;

v is the speed of the sound wave on the string

Substitute the given values and solve for speed,v,

v = \sqrt{\frac{T}{\mu} }\\\\v = \sqrt{\frac{1400}{4.7*10^{-3}} }\\\\v = \sqrt{297872.34}\\\\v = 545.78 \ m/s

Therefore, the speed of the sound wave on the string is 545.78 m/s.

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2 years ago
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Answer:

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hope this helps

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