A block of mass M = 10kg is released from a height of h = 3m. It travels down a friction-less circular shaped ramp to the bottom where it encounters a rough horizontal surface. It travels over this surface for 6m followed by 3m more on a friction-less horizontal surface. At this point, the block compresses a spring by .3m before stopping. The spring constant is 2250 N/m. Find the coefficient of kinetic friction describing the interaction between the block and the rough surface.

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

scientific laws are the result of testing theories and proving them to be facts.