what experiment can be made for making a simple working model on energy conservation?
Aakash_saphire asked:
make sure that it is simple that can be made in a day and easy
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make sure that it is simple that can be made in a day and easy
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marbels or metal balls hang on strings. Swing 1 ball tu hit others.
Comment by muneepenee — December 19, 2008 @ 9:00 am