[Mentors' note: There's no template because this thread was moved from General Physics. The specification of the problem seems adequate without the template] Hi everyone, I am working through stuff based on the Millikan Oil Drop experiment. There is a question that asks to determine the mass of a piece of candy in a paper bag. I know the mass of 4 bags with candy and one bag being empty. Empty Bag: 10g Bag 1: 38g Bag 2: 90g Bag 3: 62g Bag 4: 30g I would like some guidance on where to start the process work into this question. Thanks!