How can energy transformations be demonstrated in a system

the answer is 46 mls because when you add the speed per second it increses the speed

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

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000