A dart gun vertically launched a .25g dart .65cm high. Determine the minimum energy stored in the spring when the dart gun was loaded. Begin your solution with qualitative bar graphs and conservation of energy equation.

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.

the gas collects in coils that then becomes a liquid that then flows through the coils inside the refrigerator

i believe the answer is a hope it and is correct