We do not characterize materials by their E mnpq The Emnpa are useful in doing transformations, manipulations, etc. We characterize materials by their \ENGINEERING CONSTANTS\ (or, Elastic Constants)
ENGINEERING ECONOMICS ESTIMATING THE PROFITABILITY OF A CHEMICAL PLANT Estimating Investment Estimating Cost of Production Profitability Evaluation Return on Investment (ROD) Payout time(Tpay) DCF Rate of Return(DCFROR) Transfer Price