Question: Exclude air resistance and drag for this problem. A neutral balloon has a mass of $20$ grams and sits on an electric charge generator. If the electric charge generator has and places just the right amount of charge on the balloon, the balloon will hover $10cm$ directly above the generator. The balloon's vertical and horizontal position are unchanging: it is in uniform motion being stationary. How many electrons were deposited on the balloon if the charge of the balloon and the charge of the charge generator are identical?