12. According to the zeroth law of thermodynamics, which of the following cannot occur? A room being heated by an air conditioner.
A temperature below the coldest item in an area.
A cooler full of ice chilling a soda sitting on top of it.

The characteristic roots of a dynamic system are: 1.7920 1.8160 i, -1.7920 1.8160 i, -0.4160 what is the order of this system? what are the settling time and damping ratio of the system?

For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor

In general, how do thermosetting plastics compare to thermoplastics in mechanical and physical properties?