3 years ago

Which explanation is based on scientific evidence?

1 answer:

5 0

Answer:

Scientific evidence is evidence that serves to either support or counter a scientific theory or hypothesis. Such evidence is expected to be empirical evidence and interpretable in accordance with scientific method.

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A guitar string has a mass per length of 2.33×10−3kg/m and a fundamental frequency of 146.8 Hz when it is under a tension of 82.

jenyasd209 [6]

Answer:

240.59 N

Explanation:

We are given that

Mass per unit length=m/l= $\mu=2.33\times 10^{-3} kg/m$

Fundamental frequency,f=146.8 Hz

Tension=T=82.4 N

Mass per unit length= $\mu'=6.8\times 10^{-3} kg/m$

We have to find the tension.

Velocity,v= $\sqrt{\frac{T}{\mu}}=\sqrt{\frac{82.4}{2.33\times 10^{-3}}}=188.1m/s$

New tension,T'= $v^2\mu'=(188.1)^2\times 6.8\times 10^{-3}$

$T'=240.59 N$

Hence, the string should have tension 240.59 N so that its fundamental frequency is 146.8 Hz

4 0

3 years ago

Read 2 more answers

Which explanation is based on scientific evidence?​

Which explanation is based on scientific evidence?