If the r/z ratio is 0.5, then the vertical pressure on a horizontal pl – McqOptions

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1.	If the r/z ratio is 0.5, then the vertical pressure on a horizontal plane is given by _________
A.	\(σ_z=\frac{0.56Q}{z^3} \)
B.	\(σ_z=\frac{0.4775Q}{z^3} \)
C.	\(σ_z=\frac{0.2733Q}{z^2} \)
D.	\(σ_z=\frac{0.4775Q}{z^2} \)
Answer» D. \(σ_z=\frac{0.4775Q}{z^2} \)

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