The refinement of a fuel additive to improve gas mileage represents which step in the engineering design process? A.)modify a prototype
B.)conduct applied research
C.)state a problem
D.)conduct basic research

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

How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?

An electric kettle is made out of stainless steel, weighs two pounds (when empty) and is equipped with a heating element that consumes 2 kw of electricity. assuming that the water and the kettle are at the same uniform temperature at any moment of time, calculate the shortest possible time to bring 2 quarts of water from room temperature to the onset of boiling