Answer:
The average speed of the elevator going down in the abandoned mine is 17.722mph.
Explanation:
If the elevator takes 90 seconds to descend a height of 713m, the average speed of the elevator is:
And if 1m/s is 2.23694mph, the average speed is:
.
Answer:
The value is
Explanation:
From the question we are told that
The atom fraction of metal A at point G is
The atom fraction of metal A at a distance 5000nm from G is
The number of atoms per is
The diffusion coefficient is
Generally of the concentration of atoms of metal A at G is
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Generally of the concentration of atoms of metal A at a distance 5000nm from G is
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The concentration gradient is mathematically represented as
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Generally the flux of the atoms per unit area according to Fick's Law is mathematically represented as
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Generally if the cross-section area is
Generally the number of atom crossing the above area per second is mathematically is
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