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stepladder [879]
2 years ago
5

______ can occur when water-saturated soil turns from a solid to a liquid as a result of an earthquake.

Physics
1 answer:
jek_recluse [69]2 years ago
6 0
The answer is liquefaction
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SCALCET8 3.9.018.MI. A spotlight on the ground shines on a wall 12 m away. If a man 2 m tall walks from the spotlight toward the
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Answer:

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Explanation:

The ray of light hitting the ground forms a right angled triangle of height H, which is the height of the building and width, D which is the distance of the tip of the shadow from the building.

Also, the height of the man, h which is parallel to H forms a right-angled triangle of width, L which is the length of the shadow.

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Also, when the man is 4 m from the building, the length of his shadow is L = D - 4

So, D - 4 = hD/H

H(D - 4) = hD

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and h and H are constant, differentiating L with respect to time, we have

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Since h = 2 m and H = 3 m,

dL/dt = h(dD/dt)/H

dL/dt = 2 m(-1.7 m/s)/3 m

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