Which of the following changes would decrease the force between two charged particles by a factor of 9?
O A. Decreasing the amount of charge on one of the particles by a
factor of 3
B. Increasing the distance between the particles by a factor of 3
C. Increasing the amount of charge on each particle by a factor of 9
a
D. Decreasing the distance between the particles by a factor of 3

like poles repel so keep pushing north to north and repels funny to see this

i think it's 35 meters

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