Course information (derived classes) define a course base class with attributes number and title. define a print_info() method that displays the course number and title. also define a derived class offeredcourse with the additional attributes instructor_name, term, and class_time. ex: if the input is: ece287digital systems designece387embedded systems designmark pattersonfall 2018wf: 2-3: 30 pm the output is: course information: course number: ece287course title: digital systems designcourse information: course number: ece387course title: embedded systems designinstructor name: mark pattersonterm: fall 2018class time: wf: 2-3: 30 pm

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.

Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented