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Amanda [17]
2 years ago
6

Which best describes internet wikis as a source of scientific information

Physics
1 answer:
scoundrel [369]2 years ago
5 0

Answer:

They are written or edited by anyone

Explanation:

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Let's use the mirror equation to solve the problem:
\frac{1}{f}= \frac{1}{d_o}+ \frac{1}{d_i}
where f is the focal length of the mirror, d_o the distance of the object from the mirror, and d_i the distance of the image from the mirror.
For a concave mirror, for the sign convention f is considered to be positive. So we can solve the equation for d_i by using the numbers given in the text of the problem:
\frac{1}{12 cm}= \frac{1}{5 cm}+ \frac{1}{d_i}
\frac{1}{d_i}= -\frac{7}{60 cm}
d_i = -8.6 cm
Where the negative sign means that the image is virtual, so it is located behind the mirror, at 8.6 cm from the center of the mirror.
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Suppose the displacement of an object is related to time according to the expression x=By*2, what are the dimensions of B
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