In a collision between two unequal masses, how does the impulse imparted to the smaller mass by the larger mass compare with the impulse imparted to the larger mass by the smaller one?

They are equal

Explanation:

Newton 3rd Law of motion states that for every force applied or action there is usually an equal and opposite force.

Impulse = Force * time

It is measured in Newton seconds.

The force and time of collision is the same which translates to an equal impulse by both scenarios.

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me