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Illusion [34]
3 years ago
13

Use the picture below to answer the question. What is true about the relationship between the wavelength and the frequency of th

e wave in the picture?
Question 13 options:

As the wavelength gets longer (farther apart), the frequency of the wave increases.


As the wavelength gets shorter (closer together), the frequency of the wave increases.


As the wavelength gets shorter (closer together), the frequency of the wave decreases.


As the wavelength gets longer (farther apart), the frequency of the wave stays the same. photo https://learning.k12.com/content/enforced/372458-COF_ID94698/PastedImage_f4dhopshzyiogtqn3zvhx4271elslkoa002.png?_&d2lSessionVal=fg9HWhOLCY1X1Icrv77dQGTIr
Chemistry
1 answer:
KatRina [158]3 years ago
8 0
The picture is not loading as it requires a sign in.
However, I can tell you how to solve this.

Answer:
<span>As the wavelength gets shorter (closer together), the frequency of the wave increases. 

Explanation:
The relation between frequency and wavelength can be described by the help of velocity as follows:
velocity = frequency * wavelength
This means that:
frequency = velocity / wavelength
Noting this equation, we will find that:
The frequency and the wavelength are inversely proportional to each other. This means that as the frequency increases, the wavelength decreases and vice versa.
Now, examining the choices given, we can find that the only statement showing the inverse relation between frequency and wavelength is:
</span><span>As the wavelength gets shorter (closer together), the frequency of the wave increases. 

Hope this helps :)
</span>
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To do this problem it is necessary to take into account that the heat given by the unknown substance is equal to the heat absorbed by the water, but considering the correct sign:

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c_e = -\frac{1\ 150\ g\cdot 4.184\frac{J}{g\cdot ^\circ C}\cdot 12.1^\circ C}{75\ g\cdot (-59.4)^\circ C} = \bf 13.07\frac{J}{g\cdot ^\circ C}
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