1.

The Belli equation at the ground surface is given by _________

A. pa=γzcot2 α-2c cot⁡α
B. pa=γzcot2 α+2c cot⁡α
C. pa=-2c cot⁡α
D. pa=γzcot2 α/2c cot⁡α
Answer» D. pa=γzcot2 α/2c cot⁡α


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