Final answer:
To determine the discharge through a section, we can use the Manning's equation: Q = (1.49/n) * (A * R^(2/3) * S^(1/2)). Given the normal depth, Manning's roughness coefficient, and channel slope, the equation can be used to find the discharge.
Step-by-step explanation:
To determine the discharge through a section, we can use the Manning's equation:
Q = (1.49/n) * (A * R^(2/3) * S^(1/2))
where:
- Q is the discharge
- n is the Manning's roughness coefficient
- A is the cross-sectional area of flow
- R is the hydraulic radius
- S is the channel slope
Given that the normal depth is 5 ft, n = 0.013, and s = 0.2, we can substitute these values into the equation:
Q = (1.49/0.013) * (A * (5 ft)^2/3 * (0.2)^(1/2))
For further calculations, we need additional information about the shape and dimensions of the section.