Sustainable Energy
2nd Edition
ISBN: 9781337551663
Author: DUNLAP, Richard A.
Publisher: Cengage,
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Chapter 1, Problem 17P
To determine
Find the wavelength value of radio waves.
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Please answer the questions in the picture. Thank you for your help. For part B use the Second Picture.
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.
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- 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 6.85arrow_forward6.79 A cart is moving along a railroad track at a constant velocity of 5 m/s as shown. Water (p = 1000 kg/m³) issues from a nozzle at 10 m/s and is deflected through 180° by a vane on the cart. The cross-sectional area of the nozzle is 0.002 m². Calculate the resistive force on the cart. 5 m/s D 10 m/s Nozzle Problem 6.79arrow_forwardOil of specific gravity 0.800 acts on a vertical triangular area whose apex is in the oil surface. The triangle is 9 ft high and 12 ft wide. A vertical rectangular area 8 ft high is attached to the 12-ft base of the triangle and is acted upon by water. Find the magnitude and position of the resultant force on the entire area.arrow_forward
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