Recent content by carbonick

Thanks. Does anyone else want to chime in on this? This should be simple for most of you, but more info would really help me out.

Hello all. I'm new to the forum, but I have a feeling I'll be hanging around a lot. I have a question for all of you. If you have a rock suspended by a helium balloon inside a sealed box (the balloon is not touching the top of the box), would the box weigh the same as it would if the rock...