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24 May 2009, 2:40 PM
| #1 (permalink) |
| New Member  HSC: 2011 Gender: Female
Join Date: Dec 2008
Posts: 7
Last Activity:
12 Nov 2009, 9:49 PM  | HELppppppppplease You can hide this advertisement by registering. What is the science behind the bounce of a tennis ball, and when you soak it in water/vinegar/salt or sugar water? =Sgravity? inertia? |
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