I think the answer is B. 10D
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Since she has reckless driving and her record, anything involving driving of some sorts mechanics as well won’t work well with her!! Hope this helps
Answer:
The duration of the consolidation process for the same clay is 32 min
Explanation:
for clay 1:
t1=0
H1=thickness=2 cm
for the clay 2:
t2=?
H2=2 cm
The time factor is equal to:

where Cv is the coefficient of consolidation

if Cv is constant, we have:

Clearing t2:
t2=32 min