We claim that momentum is conserved. yet most moving objects eventually slow down and stop. can you explain.

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6

there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

-- tuba

since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.