When two gears mesh, one is called the driver gear because it a) is the follower gear
b) is the smaller gear
c) moves in anticlockwise direction
d) moves in a clockwise direction
e) transmits the power to the driven gear

i'm on my way to history not a mistory.

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

answer: 31, 5556. 952 seconds