What is the mass of 5.4 moles of copper ?

fgravity=10x10=100n case 1

fgravity=30x20=600n case 2

6 times more

explanation:

considering the bohr theory, the type of connection that requires the transfer the answer conuldn't be right

does anyone know or what?

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