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My name is Ann [436]
3 years ago
12

ANSWER ASAPPPPPPPP BEING TIMED

Physics
2 answers:
Dmitrij [34]3 years ago
8 0
C) above, the Earth's core is about the melting point of iron.
ollegr [7]3 years ago
7 0

The correct answer is B

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3 years ago
The earth has a vertical electric field at the surface, pointing down, that averages 100 N/C. This field is maintained by variou
zlopas [31]

Answer:

q = 3.6 10⁵  C

Explanation:

To solve this exercise, let's use one of the consequences of Gauss's law, that all the charge on a body can be considered at its center, therefore we calculate the electric field on the surface of a sphere with the radius of the Earth

          r = 6 , 37 106 m

          E = k q / r²

          q = E r² / k

          q = \frac{100 \ (6.37 \ 10^6)^2}{9 \ 10^9}

          q = 4.5 10⁵ C

Now let's calculate the charge on the planet with E = 222 N / c and radius

           r = 0.6 r_ Earth

           r = 0.6 6.37 10⁶ = 3.822 10⁶ m

           E = k q / r²

            q = E r² / k

            q = \frac{222 (3.822 \ 10^6)^2}{ 9 \ 10^9}

            q = 3.6 10⁵  C

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3 years ago
The first five questions refer to the following problem:
Kruka [31]

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<h2>Δd=d2−d1</h2>

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<h2>good morning</h2>
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