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Carbofuran is applied to a corn field at planting time in order to control corn rootworm. The application rate is 3.5 kg/ha. The soil has an organic matter (OM) content of 2% and a bulk density of 1.46 grams/cm3. Ten days after application, a storm occurs which produces 0.5 cm of runoff, 1.5 cm of infiltration and 0.7 tonnes/ha of sediment leaving the field. 1. Estimate the amount of carbofuran remaining at the start of the storm. Use the tabulated value of the decay constant that is based on a field study.2. Partition the remaining carbofuran between dissolved and adsorbed phases. Assume that the carbofuran is mixed in the top inch of soil and that the volumetric soil water content is 0.3. • Determine the dissolved concentration (?g/L) and dissolved mass (kg/ha) of carbofuran. • Determine the adsorbed concentration (?g/kg) and adsorbed mass (kg/ha). 3. Estimate the loss of carbofuran in (1) runoff, (2) sediment, and (3) leaching-ignoring retardation of the carbofuran-from the storm. Assume that the overland flow mixes to 0.5 cm depth and that the soil water content returns to 0.3 a few days after the storm. Note that the actual loss of carbofuran due to leaching will be less than this estimate since its downward movement will be retarded due to adsorption
two forces applied as shown to a hook support. knowing that the magnitude of P is 35 N, determine by trigonometry the required angle if the resultant R of the two forces applied to the support is to be horizontal and the corresponding magnitude of..
The maximum wind pressure on the traffic sign is 200 kg/m2. The maximum allowable shear stress is 350 kg/cm2. Design the traffic pole (only vertical element) against torsion knowing that angle of twist at the base should not exceed 6°.
The acceleration of a particle along a straight line is defined by a=(2t-9)m/s^2, where t is in seconds.At t=0, s=1m, and v=10 m/s. When t=9s, determine the particles position, the total distance traveled, and the velocity.
How many centimeters of armor plating will a 150 gram 30 mm round penetrate. How far will a depleted uranium 30 mm round penetrate if its mass is 600 grams.
Using the phi index calculated in part c, determine the volume of direct surface runoff (acre-ft) that would result from the following: hour: 1,2,3,4 ; intensity (in/hr): 0.40,0.05,0.30,0.20. phi index found to be 0.038 in/hr
Based on information provided in the survey bulletins and knowing that the landfill is located in the municipality of Duque de Caxias, on the shore of Guanabara Bay opposite Governor's Island (Galeao Airport)
Was the dam itself of sound design and a product of quality construction?
Write a User Defined Function named SimpleCharacter that takes the character inputs either "Coffee" or "Tea" and returns the outputs High Octane for an input of "Coffee" and Low Octane for an input of "Tea".
An activated sludge aeration tank has a width of 14m, a length of 15m and an effective liquid depth of 4.5m. The secondary clarifier has a diameter of 25m. The plant operating parameters are as follows
What are 3 of the equivalent fixed-point problems for f(x) = x2 - x -2=0?
A boad initially stationary at water,fires a shell in i direction,The shell's air speed =822 m/s.The shell was in the gu8n for .16s, and the force exerted on the shell decrease linearly fromthe initial force to zero over the firing interval.
A small building that shelters a water supply pump measures 2 m x 3 m x 2.4 m high. It is constructed of 1- cm thick wood having a thermal conductivity of 0.126 W*m^-1*K^-1.
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