Professor Washington is conducting research into the causes of test anxiety. In order to determine their level of anxiety, she has her participants wear a device that tracks their heart rate variability while they are taking an exam (lower levels of heart rate variability are indicative of higher levels of anxiety). In this research, what is heart rate variability

after balancing the chemical equation, what are the coefficients for these compounds?

h2s      

⇒ 3

hno3    

⇒ 2

works for edg

1190

step-by-step explanation:

1400 - 15% to get the answer.

hope this !

the aksumite empire was an ancient kingdom located in what is now northern ethiopia from the period of 100 ad to 940 ad. its capital was the city of aksum. the kingdom established itself as one of the 4 great powers at its time, along with persia, rome, and china.

the kingdom was rich in goods like gold, iron, and salt. it established strong commercial ties with the regions governed by rome, egypt, and persia (arabia). aksum was a key location in this commercial network. trade was also facilitated with the introduction of the aksumite currency.