Which two statements explain how water weathers and erodes rock?

Physics

2 answers:

Zinaida [17]4 years ago

8 0

It’s E cause water when it freezes it expands and water flows down

Nata [24]4 years ago

4 0

It’s e water carries matter downstream

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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:
$\frac{1}{12 cm}= \frac{1}{5 cm}+ \frac{1}{d_i}$
$\frac{1}{d_i}= -\frac{7}{60 cm}$
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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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3 years ago

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Solution

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\Delta t=\frac{1}{3600}hr.

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