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2 years ago

What is the frequency of a wave that has a wavelength of 0.78 m and a speed

Physics

2 answers:

Cerrena [4.2K]2 years ago

4 0

Answer:

C. f = 440 Hz

Explanation:

In any wave, there is a fixed relationship between the wavelength (distance between two sucesive crests), the frequency (number of cycles per unit time) and the perturbation speed, as follows:

$v = \lambda * f (1)$

where v = speed of the wave

λ = wavelength

f = frequency

Replacing by the givens in (1) and solving for f, we have:

$f = \frac{343 m/s}{0.78m} = 440 Hz$

f = 440 Hz

Arada [10]2 years ago

3 0

Answer:

440 Hz

Explanation:

just is

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Humans have three types of cone cells in their eyes, which are responsible for color vision. Each type absorbs a certain part of

xxMikexx [17]

Answer:

Frequency of the light will be equal to $6.97\times 10^{1}Hz$

Explanation:

We have given wavelength of the light $\lambda =430nm=430\times 10^{-9}m$

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We have to find the frequency of light

We know that velocity is equal to $v=\lambda f$ , here $\lambda$ is wavelength and f is frequency of light

So frequency of light will be equal to $f=\frac{v}{\lambda }=\frac{3\times 10^8}{430\times 10^{-9}}=6.97\times 10^{1}Hz$

So frequency of the light will be equal to $6.97\times 10^{1}Hz$

5 0

3 years ago

Number of waves that pass a given point in one second

Studentka2010 [4]

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3 years ago

Which element could provide one atom to make an ionic bond with nitrogen?

aev [14]

Answer:

boron

aluminum

gallium

indium

thallium

Explanation:

Any of these could work. Nitrogen has 5 valence electrons so you just needed to pick an element that has 3 valence electrons that nitrogen could borrow. This periodic table shows valence electron counts: