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Ipatiy [6.2K]
3 years ago
13

Radioactive carbon, or C-14, is used to date fossil remains. When C-14 decays, as seen in the nuclear equation, it produces what

nuclide of nitrogen? A) N-7 B) N-13 C) N-14 D) N-15
Physics
2 answers:
olga nikolaevna [1]3 years ago
7 0
The reaction of radiodecay of carbon C-14 is
C-14 --> N-14 + e- + (ve)
where e- is an electron and (ve) is an electron-type antineutrino.
Basically, when the carbon nucleus (atomic number: 6, mass number: 14) decays, a neutron of the nucleus converts into a proton (therefore, the mass number remains the same, 14, but the atomic number increases by 1, therefore it becomes nitrogen) and releases an electron-antineutrino pair. 

So, the correct answer is C), N-14.
jekas [21]3 years ago
6 0

Answer:

the answer is c

Explanation:

i did it on usatestprep

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Answer:

\theta = 76.9 degree

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As we know that the resultant of two vectors is given as

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here we know that

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now we have

87 = \sqrt{41^2 + 68^2 + 2(41)(68)cos\theta

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\theta = cos^{-1}(\frac{1264}{5576})

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