A sprinkler with four identical arms is to be converted into a turbine to generate electric power by attaching a generator to its rotating head as show below. Water enters the sprinkler from the base along the axis of rotation at a rate of 20 L/s and leaves the nozzle in the tangential direction. The sprinkler rotates at a rate of 100 rpm in a horizontal plane. The diameter of each jet is 1 cm, and the normal distance between the axis of rotation and the center of each nozzle is 0.6 m. What is the torque associated with this rotation

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.

a skateboard rolling across the street - apex

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle