For every force an object applies, there is an equal and opposite force acting on the object. Summarize these two principles as one.

will give brainliest

Thats newtons third law of motion

Explanation:

Which states at any force there's an equal and opposite reaction which means that always forces work in pairs

And that's according to my understanding fella

i believe the answer would be:

d. violin, clarinet, french horn, and tuba

not too sure thinking all accelerations are pointed down