While at soccer practice, Korey ran around the track at 10 meters per second. He had a constant speed and did not change directions. What is Korey's acceleration?

0m/s²

Explanation:

A body with a constant speed always has a zero acceleration

Hence if Korey ran around the track at 10 meters per second and had a constant speed and did not change directions, then his acceleration will be 0m/s² not considering his initial speed

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."