A spring gun with a spring constant of 250N/m is compressed 5.Ocm. How fast will a 0.025kg dart move when it leaves the gun?

0.13 m/s
0.50 m/s
1.5 m/s
5.0 m/s

this allows people to make the best decision or pursue the best option. when alternatives are weighed using their advantages and disadvantages, the option whose disadvantages outweigh the advantages (based on a qualitative or quantitative analysis) are shunned while those whose advantages outweigh their disadvantages are pursued.  

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete

no simpler subs form complex ones. synthesise = make