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GenaCL600 [577]
3 years ago
7

If two protons and two neutrons are added to the nucleus of a carbon atom, what nucleus does it become?

Physics
2 answers:
jonny [76]3 years ago
8 0
Carbon(6 protons) + 2 protons = 8 protons

<u>Oxygen</u> = element with 8 protons
Nostrana [21]3 years ago
7 0

Explanation:

Atomic mass is the total number of all the protons and neutrons present in an atom.

For example, a carbon atom has atomic number 6 and it has 6 neutrons.

Atomic number also means the total number of protons present in an atom.

Hence, atomic mass of this carbon atom will be (6 protons + 6 neutrons) = 12.

If two protons and two neutrons are added to the nucleus of a carbon atom then atomic mass of this carbon atom will be as follows.

               Atomic mass = [(6 + 2) protons + (2 + 6) neutrons]

                                      = 16

As it is known that oxygen is the element that has atomic mass 16 and atomic number 8.

Therefore, we can conclude that the nucleus of given carbon atoms has converted into the nucleus of oxygen atom.

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A box with the mass of 20 kg at 5 m is lifted to 20 m. How much work was 7 points<br> done?
kirza4 [7]

Answer:

2,900\: \mathrm{J}

Explanation:

Work is given by the equation W=F\Delta x where F is force and \Delta x is displacement.

Displacement is defined as change in position. In this case, the box moves from 5m to 20m. Its displacement is 20-5=15\:\mathrm{m}.

The force acting on the box is the force of gravity, given as F_g=mg.

Therefore, the total work done is:

W=F\Delta x=mg\Delta x = 20\cdot 9.81\cdot 15=2,943=\fbox{$2,900\:\mathrm{J}$}(two significant figures).

3 0
3 years ago
Why do you think festival dances should be introduced to the younger generations of today​
Nimfa-mama [501]

Answer:

Festival dances should be introduced to the younger generations of today because they teach them about different cultures. Festival dances are also a way to be active and have a fun time.

Explanation:

4 0
3 years ago
Read 2 more answers
Peter left Town A at 13:30 and travelled towards Town B at an
pochemuha

Answer:

Explanation: From 13:30 to 15:00, it past: 1 h 30 mins = 1.5

Then, the distance covered by Peter: 40x1.5= 60 miles

From 13:45 to 15:00, it pasts; 1 h 15min =1.25

Then, the distance covered by Philip. 30 x 1.25 = 37.5 miles

Lastly, the distance between them: 60-37.5= 22.5 miles

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4 0
3 years ago
Two cylinders with the same mass density rC = 713 kg / m3 are floating in a container of water (with mass density rW = 1025 kg /
cluponka [151]

Answer:

\dfrac{h_2}{h_1}=\dfrac{1}{2}

Explanation:

Lets take h is height of cylinder immersed in the water

We know that for floating body

h=\dfrac{\rho_cL}{\rho_l}

Where \rho_c density of cylinder

\rho_l density of water

For both cylinder fluid is same also density of cylinders are also same

So

\dfrac{h_1}{L_1}=\dfrac{h_2}{L_2}

\dfrac{h_1}{h_2}=\dfrac{L_1}{L_2}

\dfrac{h_1}{h_2}=\dfrac{20}{10}

\dfrac{h_2}{h_1}=\dfrac{1}{2}

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3 years ago
At what constant rate of acceleration will a car starting from rest cover 18m in the first 3 seconds?
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