Awater balloon dropped from a window high above the ground falls y = 4.9t2 m in t sec. find the balloon’s (a) average speed during the first 3 sec of fall. (b) speed at the instant t = 3.

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.

this could be newton#'s law of cooling. the cooling curve is exponential