What is the magnitude of the acceleration of a skydiver who is currently falling at four-fifths his eventual terminal speed?

3.5316 m/s²

Explanation:

At terminal velocity v acceleration

a = g

where,

g = Acceleration due to gravity  = 9.81 m/s²

The acceleration of the skydiver who is currently falling at four-fifths his eventual terminal speed is 3.5316 m/s²

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

b.a device that inputs heat into a cool object