When a student combed his dry hair for a long time, his hair began to stand up. which of these has most likely happend?

B)The comb and hair have become charged with opposite charges.

Explanation:

When the comb was rubbed against dry hair, electrons moved from the hair to the comb. While the hair became positively charged, the comb became negatively charged by acquiring an excess static charge. In other words, the comb and hair have become charged with opposite charges.

the answer is false

explanation:

the word that best describes martin luther king jr.'s tone in the video is dignified

martin luther king, jr. was a social activist and baptist minister who played a key role in the american civil rights movement from the mid-1950s until his assassination in 1968. the video shows his manner and attitude having or showing a composed or serious manner that is worthy of respect so dignified is the correct answer