Asheet of paper 90 cm-by-66 cm is made into an open box (i. e. there's no top), by cutting x-cm squares out of each corner and folding up the sides. find the value of x that maximizes the volume of the box. give your answer in the simplified radical form. x = is the max.

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.

Condition monitoring is a major component of. (clo4) a)- predictive maintenance. b)-preventive maintenance c)-proactive maintenance d)-reactive maintenance.

An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0