0pts) a deposit of soil having a hydraulic conductivity of 4 × 10-7 m/s is 13m deep overlying another impermeable stratum of soil. a sheet pile wall is driven to a depth of 8 m in the deposit, after which the soil is excavated on one side of the sheet pile wall. at steady-state flow, the difference in water level between the two sides of the sheet pile is 5.5 m. re-draw this system to scale on a sheet of engineering paper, and determine the seepage rate (q) under the sheet pile into the excavation using flow nets.

An external consultant recommends that a plant installs a bank of capacitors for power factor correction. this will reduce the peak electrical demand charges by an average of 93 kw every month. the plant current pays $13 per kw in peak demand charges. the capacitor bank will include 223 kw of fixed capacitors, and 183 of variable capacitors. the fixed capacitors cost $59 per kw, and the variable capacitors will cost $65 per kw. the consultant charges 21% of the equipment costs to install the capacitors. because this project will reduce the demand for the electric utility, they are prepared to provide a one-time rebate of $42 per kw of reduced demand. what is the simple payback period for this project (in years)?