Sample F$.$I.B$.$ Questions

$($Q$71)$ The springs which we have studied have been described to have elastic potential energy $($EPE$).$ These springs have been idealized and presumed to be of the highest quality. Consider some non$-$ideal springs which failed Q$.$A$.$ inspection of Lockheed$-$Martin$/$DOE investigators. These NonIdeal springs have internal friction, where cheap castet iron internally rubs upon other iron. A mass $"M[3]"$ is attached to this spring. This spring is stretched by a distance of $2$ millimeters and the released. Presuming that in all applications of these cheap springs encounter Zero friction with air, fluid and abrasive neighbors, what can we say about the Mechanical Energy of this cheap spring rejected by DOE?