1.

If the effective permeability k is 6*10-7cm/s and ky=4*10-7cm/s, then kx is equal to ________

A. 6*10<sup>-7</sup>cm/s
B. 7*10<sup>-7</sup>cm/s
C. 8*10<sup>-7</sup>cm/s
D. 9*10<sup>-7</sup>cm/s
Answer» E.


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