According to newton's third law of motion, when a hammer strikes and exerts force to push it into a piece of wood, the nail
a. creates a friction with the hammer
b. exerts an equal force on the wood
c. exerts an equal or opposite force on the hammer
d. moves at a constant 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."

the gas collects in coils that then becomes a liquid that then flows through the coils inside the refrigerator