1.how would you determine the substrate concentration and biomass concentration at 0.5 days? Use spreadsheet to solve for the concentrations with a delta t = 0.01 days
2.Two weights are suspended by cable ABCD. with the geometry shown, if one of the weights is 2000N, determine the other weight W and the cable tensions.
3.For a drainage area of 5,187mil^2 mean annual runoff is determined to be 3,708ft^3/s and the annual averge rainfall is 35.5 inches. Estimate the annual ET losses in inches for the area. ( 1 mile = 5,280ft)