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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:

Straight line parallel to time axis.

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As the man is still, that means the velocity is zero. So, the slope of the graph is zero. It is a straight line parallel to time axis.

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6. An excited dog runs full-speed toward his owner who has just returned home from
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Answer:

v = 8.65 m/s

Explanation:

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4 0
3 years ago
What is the correct definition of a fracture?
MA_775_DIABLO [31]

The correct definition of a fracture is break in the bone

<u>Explanation:</u>

When nay injury results in the breaking or causing any cracking in the bones of any parts then this will lead to fracture. When the injury caused is near the ligament or tissue in which the bone is connected or attached then it will lead to an avulsion fractures. Thus this will lead to the pulling of bone form the original position thereby leading more pain in the spot associated with the fracture.

Sports people are the victims of this type of fracture. Fracture may occur anywhere mostly legs,hands,ankle,hip and elbow. sometimes it may be in finger, shoulder,knee,etc. The main symptoms that are associated with fracture includes, selling, inability in moving the fractured part or pain associated when trying to move that part, Loss of the affected part's function,etc.

4 0
3 years ago
This diagram shows the forces acting on a car. The center dot represents the car, a the arrows represent the forces acting on th
mylen [45]
Need diagram right? Post it
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A person is lying on a diving board 3.50 m above the surface of the water in a swimming pool. She looks at a penny that is on th
sergij07 [2.7K]

Answer:

1.995 m

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Thus, the actual depth of water at that point is 1.995 m.

4 0
3 years ago
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