Example: Determine the minimum slope in the upper reach of a chute section of 30 m width. The range of discharge is 150 to 2000 m³/sec. n = 0.015.

1.     Zinc is an important trace nutrient for photosynthetic organisms (e.g., phytoplankton) in sea water. Calculate the speciation of zinc (Zn(II)) in seawater assuming Zn(II) TOT = 5 x 10-8 M. Provide a list of the metal-ligand complexes and their corresponding stability Constants that you will include in your calculation. If you decide to exclude any of the complexes for which stability constants are provided in Table 9.4, please list these separately and explain your rationale. b. Compute the concentrations of the metal-ligand complexes identified in part a.         c. Compute the activities of the metal-ligand complexes using the concentrations calculated in part b and using the data in Table 9.6B to calculate the activity coefficients. (Note—you likely already have a spreadsheet where you calculated activity coefficients from week 3!)

Q.2 The required design span for the beam given in Q.1 is increased to 18 ft. The design loads are the same as given in Q.1 Check the adequacy of a 10"x16" 10 Caribbean Pitch Pine – (Select Structural) for this these design conditions.