What is the efficiency of a device that takes in 40,000 j of heat and does 12,000 j of work while giving off 28,000 j of heat? use and convert to a percentage. a.70% b. 57% c. 30% d. 43%

Two vectors are shown. which statement best compares the vectors? vector x has greater magnitude than vector y. vector y has greater magnitude than vector x. the vectors have the same displacement. the vectors have the same direction.

Often called simply "velocity," this is the velocity of an object at a particular moment in time.

From the perspective of an employee that effective channeling of work related information and concerns