A rigid horizontal bar ABC is supported by three vertical rods. There is no strain in the rods before load P is applied. After loap P is applied, the axial strain in rod (1) is

Determine the deflection of the rigid bar at B and the normal strain in rods (2) if there is a 0.60-mm clearance in the connection between rod (1) and the rigid bar before the load is applied.

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)?