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nikdorinn [45]
3 years ago
6

Examine the spectra of the four unknown substances shown below. What can you conclude?

Physics
2 answers:
oksian1 [2.3K]3 years ago
7 0
Line spectra are obtained when individual elements are heated using a high-voltage electrical discharge. This heating causes excitation of the element and a subsequent emission of distinct lines of colored light are obtained. Each element has its own unique emission line spectrum; therefore, if any of the tested substances were the same, their spectra would match. However, this is not the case so none of the substances are the same.
 hope it helps!
makvit [3.9K]3 years ago
5 0
<span>Substances X and Z are the same.


Hope this helps</span>
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a wave is described by where x is in meters, y is in centimeters and t is in seconds. The angular frequency is
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Complete Question

A wave is described by y(x,t) = 0.1 sin(3x + 10t), where x is in meters, y is in centimetres and t is in seconds. The angular wave  frequency is

Answer:

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Explanation:

From the question we are told that  

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Now comparing this equation  with that given we see that

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