Which of the following is the best design choice? Assume the budget is $120 and that weight includes the payload. a
Tmax = 11.0 N, W = 8.0 N, Cost = $95
b
Tmax = 12.0 N, W = 8.0 N, Cost = $105
c
Tmax = 16.0 N, W = 8.0 N, Cost = $112
d
Tmax = 18.0 N, W = 8.2 N, Cost = $125

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)?