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olasank [31]
3 years ago
11

Can anyone help me with this??

Physics
2 answers:
lisov135 [29]3 years ago
8 0
I'm only adept in atomic makeup but my guess would be 13 electrons since they have a negative charge and protons have a positive one.
ad-work [718]3 years ago
6 0
For any atom to be electrically neutral, the atom MUST have the same numbers of protons and electrons.  So if you have 13 protons, you need 13 electrons to be neutral.
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Which of the following is not in our sun's future?
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A small disk of radius R1 is mounted coaxially with a larger disk of radius R2. The disks are securely fastened to each other an
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Answer:

Explanation:

For moment of inertia, the mass will appear as a point mass on the rim of the larger radius.

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torque is FR₁

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Two objects, Object A and Object B, need to be identified. Object A's index of refraction is determined to be 1.77, and Object B
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6 0
3 years ago
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What determines the type of igneous rock that forms from magma?
drek231 [11]

Answer: C

Explanation:

(Magma composition and cooling rate)

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5 0
2 years ago
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On a part time job you are asked to bring a cylindrical iron rod of density 7800 kg/m^3, length 81.2 cm and diameter 2.75 cm fro
Hitman42 [59]

Answer:

3.76188 kg

36.9040428 N

Yes

Explanation:

g = Acceleration due to gravity = 9.81 m/s²

L = Length of rod = 81.2 cm

d = Diameter of rod = 2.75 cm

r = Radius = \frac{d}{2}=\frac{2.75}{2}=1.375\ cm

A = Area of the cylinder =\pi r^2

v = Volume = L\times A

m = Mass

\rho = Density of rod = 7800 kg/m³

Density

\rho=\dfrac{m}{v}\\\Rightarrow m=\rho\times v\\\Rightarrow m=\rho\times L\times A\\\Rightarrow m=7800\times 0.812\times \pi\times 0.01375^2\\\Rightarrow m=3.76188\ kg

The mass of the rod is 3.76188 kg.

As the the mass of the rod is 3.76188 kg I will be able to carry the rod.

Weight

W=mg\\\Rightarrow W=3.76188\times 9.81\\\Rightarrow W=36.9040428\ N

The weight of the rod is 36.9040428 N

7 0
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