calculate the change of momentum when a rubber ball of mass 0.2kg strikes a rigid wall with a speed of 10m/s and rebounds along the original path with the same speed ​

if you already have the answer to (a), then just work out how many periods there are in 1 minute, and that's the answer to (c).

b.

hope this : )

double the distance = divide strength by 4

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.