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Considering a parallelepiped for three dimensional consolidation, the volume of water flowing into parallelepiped is __________

A. \(q_{in}=(V_x-\frac{∂V_x}{∂x} \frac{dx}{2})dydz-(V_y-\frac{∂V_y}{∂y} \frac{dy}{2})dxdz-(V_z-\frac{∂V_z}{∂z} \frac{dz}{2})dxdy\)
B. \(q_{in}=(V_x-\frac{∂V_x}{∂x} \frac{dx}{2})dydz+(V_y-\frac{∂V_y}{∂y} \frac{dy}{2})dxdz+(V_z-\frac{∂V_z}{∂z} \frac{dz}{2})dxdy\)
C. \(q_{in}=(V_x-\frac{∂V_x}{∂x} \frac{dx}{2})dydz+(V_y-\frac{∂V_y}{∂y} \frac{dy}{2})dxdz-(V_z-\frac{∂V_z}{∂z} \frac{dz}{2})dxdy\)
D. \(q_{in}=(V_x-\frac{∂V_x}{∂x} \frac{dx}{2})dydz-(V_y-\frac{∂V_y}{∂y} \frac{dy}{2})dxdz+(V_z-\frac{∂V_z}{∂z} \frac{dz}{2})dxdy\)
Answer» C. \(q_{in}=(V_x-\frac{∂V_x}{∂x} \frac{dx}{2})dydz+(V_y-\frac{∂V_y}{∂y} \frac{dy}{2})dxdz-(V_z-\frac{∂V_z}{∂z} \frac{dz}{2})dxdy\)


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