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ser-zykov [4K]
3 years ago
12

How are types of energy in the electromagnetic spectrum defined?

Physics
2 answers:
Drupady [299]3 years ago
6 0
It is defined by their wavelength. Different colors have different wavelengths. For example, radio waves have a really long wavelength, whereas gamma-rays have a very short wavelength.
ser-zykov [4K]3 years ago
5 0

The answer is E just took the test

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Two tectonic plates moving toward one another are at a
nordsb [41]

Answer:

A. cause i just took the test

Explanation:

6 0
2 years ago
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In the reaction _S+302 +2SO3, what coefficient should be placed in front of the S to balance the reaction?
lys-0071 [83]

Answer:

B. 2

Explanation:

The reaction expression is given as:

                _S  + 3O₂   →  2SO₃

Now let us balanced the expression;

  On the product side we have 2 moles of S

   On the reactant side we should have 2moles of S

So, we put the coefficient 2 to balance the expression;

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5 0
3 years ago
Which nuclei is not radioactive? <br> A. Am-241<br> B. Mg-24<br> C. Pu-241<br> D. U-238
Helen [10]

Hello!

Which nuclei is NOT radioactive?

A) Am-241 B) Mg-24 C) Pu-241 D) U-238

Solving:

It is noteworthy that chemical elements located on the periodic table in the lanthanide and actinide groups are radioactive.  

Am-241 (americium) belongs to the group of actinides and is a heavy and radioactive metal.  

Mg-24 (magnesium) is an essential element for the body, mainly for the nervous system, in addition to synthesizing proteins and serves for hormonal control, belongs to the group of alkaline earth metals and is a non-radioactive nucleus.

Pu-241 (plutonium) is an element that is isotope of fission by plutonium, belongs to the group of actinides and is a heavy and radioactive metal.  

U-238 (uranium) is an element that is isotope of non-fission uranium, belongs to the group of actinides and is a heavy and radioactive metal.

Answer:

B) Mg-24

_______________________

I Hope this helps, greetings ... Dexteright02! =)

6 0
3 years ago
What is the answer to this?
jeka57 [31]

Answer:

I think it is the forth one

7 0
2 years ago
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A student throws a rock horizontally from the edge of a cliff that is 20 m high. The rock has an initial speed of 10 m/s. If air
scZoUnD [109]

Answer:

c.20

Explanation:

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2 years ago
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