What is the definition of physics? A. the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behavior, origin, and distribution

B. the branch of science that deals with the identification of the substance of which matter is composed

C. the branch of science concerned with the nature and properties of matter and energy

D. the branch that deals with the relations of organisms to one another and to their physical surroundings

D.the branch that deals with the relations of organisms to one another and to their physical surroundings

work: w = fd (given)

work done by chet   =50*1 = 50 j

work done by mika =40*2 = 80 j

work done by sara =30*1.5 = 45 j

work done by bill =60*0.5 = 30 j

students in order from the greatest amount of work done to the least is mika> chet> sara> bill

hence option (b) is correct.

explanation:

a fuel engine ( known as a gasoline engine in american english )is an internal combustion engine with spark ignition, designed to run on petrol (gasoline) and similar volatile fuels.