3 years ago

Which statements are true about galaxies, stars, and the universe? (more than one true answer by the way)

Physics

1 answer:

Elina [12.6K]3 years ago

8 0

Answer:

statements 2, 3, 4, and 7 are true

Explanation:

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4 years ago

A very long uniform line of charge has charge per unit length λ1 = 4.68 μC/m and lies along the x-axis. A second long uniform li

Kitty [74]

Answer:

$E_{net} = 6.44 \times 10^5 N/C$

Explanation:

As we know that electric field due to infinite line charge distribution at some distance from it is given as

$E = \frac{2k \lambda}{r}$

now we need to find the electric field at mid point of two wires

So here we need to add the field due to two wires as they are oppositely charged

Now we will have

$E_{net} = \frac{2k\lambda_1}{r} + \frac{2k\lambda_2}{r}$

now plug in all data

$\lambda_1 = 4.68 \muC/m$

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now we have

$E_{net} = \frac{2k}{r}(4.68 + 2.48)$

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3 years ago

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Hope it helped :)

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