Question

how many extra electrons do you need to add to a previously-neutral object to give it a net charge of -2.00 nc? (remember, 1 nc = 1 nanocoulomb = 10-9 c).

Answer 1

To give a previously-neutral object a net charge of -2.00 nC, approximately 1.25x10^10 extra electrons need to be added.

Step-by-step explanation:

To calculate the number of electrons needed to give a net charge of -2.00 nC, we can use the formula: number of electrons (ne) = total charge / charge per electron. Given that 1 nC = 10-9 C, we have:

ne = (-2.00 nC) / (1.60x10-19 C/e) = 1.25x1010 electrons

Therefore, you would need to add approximately 1.25x1010 extra electrons to the previously-neutral object to give it a net charge of -2.00 nC.