To calculate the value of unknown charge, we use the formula the electric force between two charges
Here, q is unknown charge , , and
Now substituting the given values in above formula we get
or
The unknown charge is positive because the force between charges is attractive.
Answer:
(a) The spacing of the fringes will remain unchanged if there is a change in the width of the slits but no change in the centers' distance.
(b) However, if the slits are made to be broader, wave interference will create less contrast. There will be a reduction in the intensity of the bright fringes.
Explanation:
The equation for the double slit experiment is shown below:
mλ = dsinθ
Thus: (a) The spacing of the fringes will remain unchanged if there is a change in the width of the slits but no change in the centers' distance.
(b) However, if the slits are made to be broader, wave interference will create less contrast. There will be a reduction in the intensity of the bright fringes.
Given what we know, we can confirm that the letter V is often used to describe the typical shape of a mountain valley, while stream bank and stream bed described the side and bottom of a stream respectively.
<h3>What terms do we use to described streams?</h3>
As shown in the question, there are many ways to describe the different parts of a stream. The side of the stream is referred to as the bank of the stream, along its entire length, while the stream bed is a term used to describe the bottom.
Therefore, we can confirm that the letter V is often used to describe the typical shape of a mountain valley, while stream bank and stream bed described the side and bottom of a stream respectively.
To learn more about streams visit:
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Answer:
A: Opposite
Explanation:
From Newton's third law of motion, to every action there is an equal an opposite reaction. Thus, when the wave hits a fixed boundary, it is returned as a reflected wave to the starting point albeit on the other side.