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Mekhanik [1.2K]
2 years ago
6

Help me with this please

Physics
1 answer:
creativ13 [48]2 years ago
4 0

Answer:

i dont understand, can you put it in word form please.

Explanation:

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The earth has a vertical electric field at the surface, pointing down, that averages 100 N/C. This field is maintained by variou
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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
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Answer:

Explanation:

According to first law of thermodynamics:

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Thus, the internal energy of the system decreases by 60 kJ.

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