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lions [1.4K]
4 years ago
8

A current flow through a wire, the number of ________ stays the same.

Physics
1 answer:
Reptile [31]4 years ago
5 0

A current flow through a wire, the number of currents stays the same.

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The number of electrons in a copper penny is approximately 10*10^23. How large would the force be on an object if it carried thi
slega [8]
The charge on the electron is 1.6x10^-19C. So, 10^24 of them will be a  charge of 1.6x10^5C, F = q1xq2/[(4pi epsilon nought)r^2]
3 0
3 years ago
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A summary of a source is usually
Mekhanik [1.2K]

Answer:

A shorter than the original source and in the researcher's words

Explanation:

The summary is an abridged version of the original source and in the researcher's own very words.

Summaries gives an over-arching perspective and excludes implicit details from a given text.

A summary should not be detailed and must avoid overt illustrations. They must capture the true essence of piece leaving out flowery details.

A summary should be lesser in length than the original piece. Any third party reader should immediately be able to grab the details of the original piece from the summary.

5 0
3 years ago
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object x and y fall from a same height and object x is heavier than y which object would fall faster qnd y​
hjlf

Answer: They’d fall at the same speed, because air resistance is the only thing that makes an object fall faster than another. There’s a video somewhere on the internet of a bowling ball and a feather falling at the same speed in a vacuum, if you look for it. Hope this helps!

4 0
3 years ago
Which sentences in this passage are true?
lora16 [44]
I think that your answer should be D) the state should make use of satellites and radars because they detect when a storm is coming
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3 years ago
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A positively charged insulating rod is brought close to an object that is suspended by a string. If the object is repelled away
Trava [24]

Answer

A)   Positively charged two insulating rod are brought closed to an object  they repel each other. It means the Object is positively charged. Because similar charge repel each other.

   The correct answer is Option A.

B) we know force between to charges is calculated using Formula

         F = \dfrac{kQ_1Q_2}{r^2}.......(1)

   form the given condition in the question

          F' = \dfrac{k\dfrac{Q_1}{4}\dfrac{Q_2}{4}}{(\dfrac{r}{2})^2}

          F' = \dfrac{k\dfrac{Q_1}{4}\dfrac{Q_2}{4}}{(\dfrac{r^2}{4})}

          F' = \dfrac{4}{16}\dfrac{kQ_1Q_2}{r^2}

from equation (1)

          F' = \dfrac{F}{4}

hence, the correct answer is Option C.

3 0
3 years ago
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