(1) When you rub a balloon on your hair, electrons move from your hair onto the balloon. (a) After rubbing the balloon on your head, the balloon is having a charge of -0.3 uc, determine how many electrons have been transferred from your head to the balloon.

(b) When the balloon possesses electric charge of -0.3 uc, state the amount of charge your head possesses. Explain your answer.

I have no idea on this topic, could anyone help me? I still had no idea on what my teacher was saying while on full focus mode. I'm pretty sure he did not say anything about the uc thing