A 0.10 kg ball falls 10.0 m onto a hard floor and then bounces back up to 9 m. How much of its mechanical energy is transformed to the internal energy of the ball and the floor?

dopamine..

"it was found that some people who were taking the drug l-dopa to raise their levels of dopamine were developing schizophrenic-like symptoms supporting research a strength of the dopamine hypothesis is that there are many studies which have shown support for the neurochemical explanation."

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