the answer is included

2. Problem 4.2 (1) (page 173): Convert the following IDF curves of Problem 4.1 into Steel Formulas: (1) The 2- and 50-year IDF curves by the Gumbel distribution 2. (1) 2-year: i= 75.777-0.32 50-year: i = 167.717-0.33 (2) 5-year: i= 91.401-0.34 10-year: i= 109.71t-0.37 (3) 25-year: i= 143.04t-0.33 100-year: i= 164.16t-0.33 Cell Formatting as Table Styles H 2 years 5 Years Probabilty 0.5 Probability Distribution 0.3667 1.499 M 10 years 0.2 25 years 0.1 2.25036 50 years 0.04 0.02 3.19853 3.90193 100 years 0.01 4.60014 Rainfall depth 2 years 5 min 3.898003436 10 min 15 min 30 min 5.7841113 7.110571212.859881 45 min 18.41923749 Syeurs Smin 10 min 15 min 30 min 45 min 5.4780589777.7228843 9.6542687 17.903246 26.04272854 10 Years 6.52653599819.0093953 11.342189 21.24987 25 Years 7.849649363 10.632893 13.472241 25.473103 31.1014464 50 years 37.48523648 8831201132 11.837285 15 05242 28.606108 100 years 42.22105173 9 SO5510572 13.03279 16.62094 31.715997 46.92192401 3 3 75 2 year 10 Years 25 Youts 50 years Rainfall intensity 46.77604123 34.70466 2.442285 25.719763 65.75670772 46 337306 38.61 7075 35 6691 78.31843198 34.056372 45 36675742.490719 54.1957923563.797352 53 964 50946205 105 92441362102370 60 2096815722217 1176661 66.4837663.411995 11 24.35898332 14.7236380S 414685952 49.980331 5629473564 62.56256535 15 Rainfall intensity 140 120 100 80 Mean intensity mm/hr 60 40 20 0 0 1 2 3 4 5 6 -2 Years -5 Years -10 Years 25 years 50 years 100 years 2. Problem 4.2 (1) (page 173): Convert the following IDF curves of Problem 4.1 into Steel Formulas: (1) The 2- and 50-year IDF curves by the Gumbel distribution 2. (1) 2-year: i= 75.777-0.32 50-year: i = 167.717-0.33 (2) 5-year: i= 91.401-0.34 10-year: i= 109.71t-0.37 (3) 25-year: i= 143.04t-0.33 100-year: i= 164.16t-0.33 Cell Formatting as Table Styles H 2 years 5 Years Probabilty 0.5 Probability Distribution 0.3667 1.499 M 10 years 0.2 25 years 0.1 2.25036 50 years 0.04 0.02 3.19853 3.90193 100 years 0.01 4.60014 Rainfall depth 2 years 5 min 3.898003436 10 min 15 min 30 min 5.7841113 7.110571212.859881 45 min 18.41923749 Syeurs Smin 10 min 15 min 30 min 45 min 5.4780589777.7228843 9.6542687 17.903246 26.04272854 10 Years 6.52653599819.0093953 11.342189 21.24987 25 Years 7.849649363 10.632893 13.472241 25.473103 31.1014464 50 years 37.48523648 8831201132 11.837285 15 05242 28.606108 100 years 42.22105173 9 SO5510572 13.03279 16.62094 31.715997 46.92192401 3 3 75 2 year 10 Years 25 Youts 50 years Rainfall intensity 46.77604123 34.70466 2.442285 25.719763 65.75670772 46 337306 38.61 7075 35 6691 78.31843198 34.056372 45 36675742.490719 54.1957923563.797352 53 964 50946205 105 92441362102370 60 2096815722217 1176661 66.4837663.411995 11 24.35898332 14.7236380S 414685952 49.980331 5629473564 62.56256535 15 Rainfall intensity 140 120 100 80 Mean intensity mm/hr 60 40 20 0 0 1 2 3 4 5 6 -2 Years -5 Years -10 Years 25 years 50 years 100 years