Acylinder is fitted with a piston, beneath which is a spring, as in the drawing. the cylinder is open at the top. friction is absent. the spring constant of the spring is 3900 n/m. the piston has a negligible mass and a radius of 0.020 m.

a) when air beneath the piston is completely pumped out, how much does the atmospheric pressure cause the spring to compress?
b) how much work does the atmospheric pressure do in compressing the spring?

the arctic is a region of the planet, north of the arctic circle, and includes the arctic ocean, greenland, baffin island, other smaller northern islands, and the far northern parts of europe, russia (siberia), alaska and canada.

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