That's the question. Here's the information I have:

Vsphere= pi/6(d^3)

W = mg

Wc + Wo' = 0.650 N

Wc' + Wo' = 0.550 N

I'm unsure of how to do this because it asks to find the volume ONLY BY USING THE two weight measurements. The simpler way to do it would be to measure how much fluid is displaced but that's not allowed apparently so I'm stuck.

I was just wondering if you guys could tell me what to use, maybe some equation or something I could sub in to calculate the volume using only the two weights. I know that this takes a bit of physics knowledge but would greatly appreciate the help.