Public class mysquare extends griditem { private int side; public mysquare(int xvalue, int yvalue, int s) { x = xvalue; y = yvalue; side = s; } public double getarea() { return side * side; } public boolean containspoint(int xvalue, int yvalue) { return xvalue > = x & & xvalue < = x + side & & yvalue > = y & & yvalue < = y + side; } } required put a system. out. println statement into each containspoint method (griditem, mycircle, and myrectangle). run the program and examine the output. you will notice that griditem’s containspoint method is never called. why is this? a3.

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.

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

An engine runs on the ideal diesel cycle. the cycle has a compression ratio of 20 and a cutoff ratio of 2. the highest temperature in the cycle is 1200 k. if the heat into the system is 300 kj/kg of working fluid and using variable specific heats determine the work produced per mass of working fluid