3 years ago

Can viruses, bacteria, and fungi be considered parasites?

Physics

1 answer:

Pani-rosa [81]3 years ago

4 0

Yes, they live off of other organisms and harm the organisms.

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An 80-cm-long steel string with a linear density of 1.0 g/m is under 200 N tension. It is plucked and vibrates at its fundamenta

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Answer:

Wavelength of the sound wave that reaches your ear is 1.15 m

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The speed of the wave in string is

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

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$v=\sqrt{\frac{200}{1\times 10^{-3} }$

$v=447.2 m/s$

Wavelength of the wave in the string is

$\lambda =2L=2\times 0.8=1.6 m$

The frequency is

$f=\frac{v}{\lambda} \\f=\frac{447.2}{1.6}\\f=298.25 Hz$

The required wavelength pf the sound wave that reaches the ear is( take velocity of air v=344 m/s)

$\lambda=\frac{v_{air}}{f} \\\lambda=\frac{344}{298.25} \\\lambda=1.15 m$

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3 years ago

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A concave mirror can form real, inverted images of various sizes and virtual, erect and enlarged images whereas a concave lens forms only virtual, errect and diminished images.

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