B, the opposing forces are the same, thus, the ball doesn't move back or forward.
Answer:
it depends where you live really... lol
The molar mass, in grams, of a mole for an element is equal to the atomic weight if the element.
An electric toaster takes in electrical energy from the power outlet and converts it into heat, very efficiently. If you want your toast to cook quickly, you need a toaster that radiates as much heat as possible each second onto your bread.
