HURRY! Which is the best choice for describing orthographic projections?
A. They include many sketches that incorporate leader lines
B. They include top, bottom , back and all sides view of an object.
C. They include leader lines and extension lines
D. They include the exact dimension of an object.

The force on a cutting tool are 2600n vertically downward and 2100 horizontal. determine the resultant force acting on the tool and the angle at which it acts.

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

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