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3 years ago

What is a central idea

Physics

1 answer:

Mice21 [21]3 years ago

5 0

Answer:

The definitive and unifying theme or idea of a story or article. It encompasses all the aspects necessary to create a coherent main idea. The central idea is typically expressed as a universal truth or theme that is built and supported by the setting and characters in a story.

Explanation:

This is the correct answer to your question.

Hope this helps!!!

Kyle.

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Along the line connecting the two charges, at what distance from the charge q1 is the total electric field from the two charges

Nostrana [21]

Answer:

$r = d (\frac{\sqrt {q_1}}{\sqrt{q_1} + \sqrt{q_2}})$

Explanation:

Here two charges are placed at distance "d" apart

now the net value of electric field at some position between two charges will be ZERO

so we will have

electric field due to charge 1 = electric field due to charge 2

$E_1 = E_2$

Let the position where net field is zero will lie at distance "r" from q1

$\frac{kq_1}{r^2} = \frac{kq_2}{(d-r)^2}$

now we will have

$\frac{(d - r)^2}{r^2} = \frac{q_2}{q_1}$

now square root both sides

$\frac{d}{r} - 1 = \sqrt{\frac{q_2}{q_1}}$

now we have

$\frac{d}{r} = \sqrt{\frac{q_2}{q_1}} + 1$

so we have

$r = d (\frac{\sqrt {q_1}}{\sqrt{q_1} + \sqrt{q_2}})$

8 0

3 years ago

The potential of electrons in a circuit can be increased by _____.

tresset_1 [31]

<span>The potential of electrons in a circuit can be increased by the action of a battery.

</span><span>♡♡Hope I helped!!! :)♡♡
</span>

6 0

3 years ago

Read 2 more answers

Which of the following statements best describes the function of the muscular system?

Korvikt [17]

Explanation:

A is excretion

B is digestion

so my guess is c

8 0

3 years ago

You're conducting a physics experiment on another planet. You drop a rock from a height of 2.1 m and it hits the ground 0.6 seco

umka21 [38]

The formula to use is the one that connects the acceleration,
the distance fallen, and the time spent falling:

   Distance = 1/2 a T² .

You said 2.1 meters in 0.6 second .

   2.1 m       = 1/2 a (0.6 sec)²

Multiply each side by 2 :       4.2 m =    a (0.6 sec)²

Divide each side by (0.6 sec)² =    (4.2/0.36) m/s² = a

   a = (11 and 2/3) m/s²

(about 19% more than Earth's gravity)

3 0

3 years ago

Read 2 more answers

There are seven fundamental quantities in physics. true or false

Gemiola [76]

Answer:

True

Explanation:

mass, length, time, electric current, temperature, luminous intensity and amount of substance

6 0

2 years ago