Submitted by schematicboy t3_10qtvtb in askscience
[deleted] t1_j6vhpen wrote
Reply to comment by ImDreamingAwake in Suppose I have a container of water with a ball floating on top of it. I put it outside overnight and the water freezes. Since the water's volume increases as it freezes, the ball is raised. Where does the increased gravitational potential energy come from? by schematicboy
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