Chapter 6, Problem 6.5.3P

Derive by deconvolution the six-hour unit hydrograph from the following data for a watershed having a drainage area of 216 km2 , assuming a constant rainfall abstraction rate and a constant baseflow of 20 m3 /s. Six-hour period 1 2 3 4 5 6 7 8 9 10 11 Rainfall (cm) 1.5 3.5 2.5 1.5 Streamflow (m3 /s) 26 71 174 226 173 99 49 33 26 22 21 Use the unit hydrograph developed to calculate the streamflow hydrographfrom a 12 hour-duration storm having 2 cm of rainfall excess in the first six hours and 3 cm inthe second six hours. Assume a constant baseflow rate of 30 m3/s.

Please answer the following question in the picture. Thank you for your help.

Given the unit hydrographic in the table, calculate the streamdlow hydrographic from a 12 hour duration story having 2cm of rainfall excess in the first six hours and 3cm in the second six hours. Assume a constant base flow rate of 30 m3/s

Based on the following information, what is the owner’s equity? Current Assets: $162,000Current Liabilities: $91,000 Fixed Assets: $290,000 long-Term Debt: $140,000

Please refer to the below figure. Use f y = 60,000 psi and f c′ = 3000 psi. Each web is reinforced with 2-#4 rebars in one layer. (a) Use the entire flange width as effective. Determine if the interior Double-Tee beam behaves as a T-beam or rectangular beam. (b) Determine the design moment strength of the section. Hint: You can collapse the two webs in a single web as discussed in class.

Grade is being established to the bottom of a footing that is 24” thick. The elevation of thetop of the footing is 102.33’. the elevation of the existing grade is 106.14’. the backsight of thesurveying instrument on a benchmark of 100.00’ is 6.78’. what is the correct reading for the rodat the bottom of the footing?

6.48 This "double" nozzle discharges water (p = 62.4 lbm/ft³) into the atmosphere at a rate of 16 cfs. If the nozzle is lying in a horizontal plane, what X-component of force acting through the flange bolts is required to hold the nozzle in place? Note: Assume irrotational flow, and assume the water speed in each jet to be the same. Jet A is 4 in. in diameter, jet B is 4.5 in. in diameter, and the pipe is 1.4 ft in diameter. A 30°F B Problem 6.48 Xx

6-1 For the rectangular beam shown in Fig. P6-1, (a) Draw a shear-force diagram. (b) Assuming the beam is uncracked, show the direction of the principal tensile stresses at middepth at points A, B, and C. (c) Sketch, on a drawing of the beam, the inclined cracks that would develop at A, B, and C. 10 kips A B 1 kip/ft 7.5 ft Fig. P6-1 + 7.5 ft 6 ft 10 kips

6.85 A reducing pipe bend is held in place by a pedestal as shown. There are expansion joints at sections 1 and 2, so no force is transmitted through the pipe past these sections. The pressure at section 1 is 20 psig, and the rate of flow of water (p = 62.4 Ibm/ft³) is 2 cfs. Find the force and moment that must be applied at section 3 to hold the bend stationary. Assume the flow is irrotational, and neglect the influence of gravity. 6 in. diameter + 24 in. 24 in. (3 4 in. diameter Problem 6.85