EDIT: Due to request I will turn this question into a series of questions.
I'm wanting to make a character with the power to change the value of mass for objects. Before anyone answers let me make some clarifications.
The person does not CHANGE THE AMOUNT OF MATTER in an object, or alter its density or volume, the character literally make the same individual particle have a mass of 2 instead of 1. An analogy is if you had a bag of marbles, and each marble had a number on them, rather then changing the amount of marbles in the bag you change the number on the marbles. (I have heard that in particle physics mass can be seen as an intrinsic quality and in the case of Hawking's radiation there is "negative" mass to evaporate black holes.)
Edit: For those saying the number isn't arbitrary, for arguments sake this person's has the ability to make it arbitrary. I know this is pseudo science. I just want to know what should happen realistic after the unrealistic of changing the mass.
So my question is literally what can and can't this character do. I'll give one question for this thread.
- If an Object at the center had its mass decreased but on the outside layer had its mass increased? Would the negative and positive mass cancel each other out for a net mass of 0 making the object light enough to carry. (Even if it's a large object like a car or piece of large furniture.) If you hit someone with this object would the person not feel any mass (0 mass) based off the total net mass of negative and positive mass or would they feel the outside layer of "positive mass" so the person holding the object could effectively be holding an object that weighs nothing but hits like a truck when slammed against objects?
Also No Making Guesses if you don't have an educated opinion. (Like me I don't have an educated opinion) Refrain from answering. Your answer must have a source to an experiment, paper, or whatever to back up your Educated guesses, hypotheses, or theories. Although the answer itself would be best if he could explain it to a lay person, as long as you have the more technical explanation to back it up I'll accept that.