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loris [4]
2 years ago
7

Calculate the time required (in years) for water to penetrate a layer of clay that is 40 cm deep when exposed to a hydraulic gra

dient of 1 cm/cm. The permeability of clay is 1x10-8 cm/sec. If there is 30 cm static head of water on the clay layer, how long will it take for moisture to penetrate the 40 cm clay layer (in years)?
Physics
2 answers:
guapka [62]2 years ago
5 0

Answer:

The time required to penetrate the 40 cm clay layer is 126.82 years

Explanation:

Given:

Hydraulic gradient = 1 \frac{cm}{cm}

Permeability of clay K = 1 \times 10^{-8} \frac{cm}{sec}

Time required to penetrate 40 cm clay layer,

  = \frac{40}{K}

  = \frac{40}{1 \times 10^{-8} }

  = 40 \times 10^{8} sec

But we have to find time in years,

  = \frac{40 \times 10^{8} }{24 \times 60 \times 60 \times 365} years

  = 126.82 years

Therefore, the time required to penetrate the 40 cm clay layer is 126.82 years

Free_Kalibri [48]2 years ago
3 0

Answer:

its a

Explanation:

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