Determine whether the following expressions are true or false. Use a computer program to verify your answers. (a) (4==4)&&(4>=3)=
(b) (4==4)||(10<5)=
(c) !(4==4)||(10<5)=
(d) !(4==4)||!(10<5)=
(e) (3!=4)&&(10<15)||(4==5)=
(f) (3!=4)&&(10<15)&& ;(4==5)=

Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.

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.

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way