Nina is working with electricity and shortens the wires through which the current is flowing. what is nina most likely trying to accomplish?
a convert electric energy to heat
b convert electric energy to light
c increase resistance
d decrease resistance

Option (D) is the correct answer.

Explanation:

Resistance means opposing the flow of current through a wire or circuit.

The relation between resistance, length and area is as follows.

where,      R = resisatnce

                = resistivity

                  l = length

                 A = area

Therefore, when we decrease the length of wire then there will be decrease in resistance as length is directly proportional to resistance.

Thus, we can conclude that Nina most likely trying to accomplish decrease in resistance.

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