The solar nebula theory says that our Sun formed when a. uranium exploded to begin fusion.

b. two smaller stars collided to make a bigger star.

c. a nebula of dust and gas collapsed due to gravity, until the center became hot enough to begin fusion.

d. the universe began in the Big Bang

it is the second option.

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

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach