Select the correct answer. What is true about the nodes and antinodes of a standing wave?
O A. They decrease in number with time.
OB. They remain in a fixed position.
O C.
Their position keeps changing with time.
OD. They increase in number with time.

B) They remain in a fixed position.

Explanation:

They remain in a fixed position. The amplitude of the resultant wave is greater than the amplitude of either of the two individual waves.

coil wire, increase current, put iron inside the coil

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."