Which of these are true: (a)-gears must have the same diametral itch to mesh correcty. (b)-in solidworks assemblies, parts will not go through other parts like in real life. (c)-the cam profile is defined by the path of the trace point. (d)-the trace point is the centerpoint of the circular follower. keys can be used to hold a cam in place against a drive shaft.

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)?